From 304fad4247d84ae17c5abc2f86d7809052239793 Mon Sep 17 00:00:00 2001
From: vsc <vsc@b08c6af1-5177-4d33-ba66-4b1c6b8b522a>
Date: Wed, 13 Nov 2002 15:29:44 +0000
Subject: [PATCH] commit configure

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@686 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
---
 Makefile.in  |   45 +-
 README.nt    |   76 ++-
 configure    | 1276 ++++++++++++++++++++++++++++++++++----------------
 configure.in |   28 +-
 4 files changed, 955 insertions(+), 470 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index 4c5e854bc..fafd2aa1f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -509,14 +509,15 @@ install_win32: startup
 	mkdir -p $(DESTDIR)$(INCLUDEDIR)
 	$(INSTALL_PROGRAM) -m 755 yap.exe $(DESTDIR)$(BINDIR)/yap.exe
 	$(INSTALL_PROGRAM) -m 755 yap.dll $(DESTDIR)$(BINDIR)/yap.dll
+	$(INSTALL_PROGRAM) -m 755 libWYap.a $(DESTDIR)$(YAPLIBDIR)/libWYap.a
 	$(INSTALL_PROGRAM) -m 755 startup $(DESTDIR)$(YAPLIBDIR)/startup
 	$(INSTALL) $(HEADERS) $(DESTDIR)$(INCLUDEDIR)
 	$(INSTALL) $(srcdir)/include/c_interface.h $(DESTDIR)$(INCLUDEDIR)/c_interface.h
 	$(INSTALL) config.h $(INCLUDEDIR)/config.h
-	(cd library/random; make install_win32)
-	(cd library/regex; make install_win32)
-	(cd library/system; make install_win32)
-	(cd library/yap2swi; make install_win32)
+	(cd library/random; make install)
+	(cd library/regex; make install)
+	(cd library/system; make install)
+	(cd library/yap2swi; make install)
 
 install_library: @YAPLIB@
 	$(INSTALL_DATA) libYap.a  $(DESTDIR)$(LIBDIR)/libYap.a
@@ -554,34 +555,18 @@ dist:
 .c.s:
 	$(CC) $(CFLAGS) -S $<
 
-#
-# create a new DLL library on cygwin environments
-#
-# DLLNAME: name of the new dll
-# OBJS: list of object files I want to put in
-# LIBS: list of libraries to link with
-# DEFFILE is the name of the definitions file.
-# BASEFILE temporary 
-# EXPFILE  temporary
-# ENTRY is the entry point  int WINAPI startup (HINSTANCE, DWORD, LPVOID)
-# 
-DLLTOOL=dlltool
-DLLNAME=yap.dll
-DLL_LIBS=@DLL_LIBS@ $(LIBS)
-BASE_FILE=yap.base
-EXP_FILE=yap.exp
-DEF_FILE=$(srcdir)/misc/yap.def
-ENTRY_FUNCTION=_win_yap@12
-#
+# use my own .def file.
 libWYap.a: yap.dll
-	$(DLLTOOL) --as=$(AS) --dllname $(DLLNAME) --def $(DEF_FILE) --output-lib libWYap.a
+	dlltool --def $(srcdir)/misc/yap.def \
+	--dllname yap.dll \
+	--output-lib libWYap.a
 
-yap.dll: $(HEADERS) $(LIB_OBJECTS) $(DEF_FILE)
-	$(LD) -s --base-file $(BASE_FILE) --dll -o $(DLLNAME) $(LIB_OBJECTS) $(DLL_LIBS) -e $(ENTRY_FUNCTION)
-	$(DLLTOOL) --as=$(AS) --dllname $(DLLNAME) --def $(DEF_FILE) --base-file $(BASE_FILE) --output-exp $(EXP_FILE)
-	$(LD) -s --base-file $(BASE_FILE) $(EXP_FILE) -dll -o $(DLLNAME) $(LIB_OBJECTS) $(DLL_LIBS) -e $(ENTRY_FUNCTION)
-	$(DLLTOOL) --as=$(AS) --dllname $(DLLNAME) --def $(DEF_FILE) --base-file $(BASE_FILE) --output-exp $(EXP_FILE)
-	$(LD) $(EXP_FILE) --dll -o $(DLLNAME) $(LIB_OBJECTS) $(DLL_LIBS) -e $(ENTRY_FUNCTION)
+yap.dll:  libYap.a
+	$(CC) $(CFLAGS) -shared -o yap.dll \
+	-Wl,--export-all-symbols \
+	-Wl,--enable-auto-import \
+	-Wl,--whole-archive libYap.a \
+	-Wl,--no-whole-archive $(LIBS)
 
 install_info:
 	make info; \
diff --git a/README.nt b/README.nt
index 894710815..43a25cafa 100644
--- a/README.nt
+++ b/README.nt
@@ -6,30 +6,68 @@ how to do it from scratch.
 $YAPSRC is the directory where you can find the sources
 $YAPVERSION  is the current version for YAP.
 
-CYGWIN:
+GCC-Based compilation:
 
-	This is our suggested approach as YAP can use GCC features to
-generate faster code. You should install the CygWin environment first,
-as available from sourceware.cygnus.com and mirrors. YAP should
-compile under cygwin 20.1 but we suggest using the newer 1.1.1 (April
-Release), which has a more complete implementation of the WIN32 API
-and uses GCC2.95.2 instead of egcs. The compilation steps under the
-cygwin shell are as follows:
+GCC is distributed in the MINGW32 and CYGWIN packages.
 
-	mkdir cyg
-	CC="gcc -mno-cygwin" $YAPSRC/configure
-	make
-	make install
+The Mingw32 environment is available from the URL:
 
-	The "-mno-cygwin" disables the use of the cygwin dll. The
-compiler will use the mingw32 environment instead.
+@code{http://www.mingw.org}
 
-	You should also check the default installation path which is
-set to "/PROGRA~1/Yap" in the Makefile. This should correspond to
-"/Program Files/Yap".
+You will need to install the @code{msys} and @code{mingw}
+packages. You should be able to do configure, make and make install.
 
-The cygwin environment does not provide gmp. You can fetch a dll for
-the gmp library from "http://www.sf.net/projects/mingwrep".
+If you use mingw32 you may want to search the contributed packages for
+the @code{gmp} multi-precision arithmetic library. If you do setup Yap
+with @code{gmp} note that @code{libgmp.dll} must be in the path,
+otherwise Yap will not be able to execute.
+
+CygWin environment is available from the URL:
+
+@code{http://www.cygwin.com}
+
+@noindent
+and mirrors. We suggest using recent versions of the cygwin shell. The
+compilation steps under the cygwin shell are as follows:
+
+@example
+mkdir cyg
+$YAPSRC/configure --enable-coroutining \\
+                  --enable-depth-limit \\
+                  --enable-max-performance
+make
+make install
+@end example
+
+By default, Yap will use the @code{--enable-cygwin=no} option to
+disable the use of the cygwin dll and to enable the mingw32 subsystem
+instead. Yap thus will not need the cygwin dll. It instead accesses
+the system's @code{CRTDLL.DLL} @code{C} run time library supplied with
+Win32 platforms through the mingw32 interface. Note that some older
+WIN95 systems may not have @code{CRTDLL.DLL}, in this case it should
+be sufficient to import the file from a newer WIN95 or WIN98 machine.
+
+You should check the default installation path which is set to
+@code{/PROGRA~1/Yap} in the standard Makefile. This string will usually
+be expanded into @code{c:\Program Files\Yap} by Windows.
+
+The cygwin environment does not provide @t{gmp}. You can fetch a dll for
+the @t{gmp} library from @url{http://www.sf.net/projects/mingwrep}.
+
+It is also possible to configure Yap to be a part of the cygwin
+environment. In this case you should use:
+@example
+mkdir cyg
+$YAPSRC/configure --enable-coroutining \\
+                  --enable-max-performance \\
+                  --enable-cygwin=yes
+make
+make install
+@end example
+Yap will then compile using the cygwin library and will be installed
+in cygwin's @code{/usr/local}. You can use Yap from a cygwin console,
+or as a standalone application as long as it can find
+@code{cygwin1.dll} in its path.
 
 VISUAL C++:
 
diff --git a/configure b/configure
index 81dbc1dd0..0ab0509e5 100755
--- a/configure
+++ b/configure
@@ -1,11 +1,19 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.54.
+# Generated by GNU Autoconf 2.53.
 #
 # Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
 # Free Software Foundation, Inc.
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+
 ## --------------------- ##
 ## M4sh Initialization.  ##
 ## --------------------- ##
@@ -14,13 +22,11 @@
 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   emulate sh
   NULLCMD=:
-  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
 elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
 
+# NLS nuisances.
 # Support unset when possible.
 if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
   as_unset=unset
@@ -28,39 +34,34 @@ else
   as_unset=false
 fi
 
-
-# Work around bugs in pre-3.0 UWIN ksh.
-$as_unset ENV MAIL MAILPATH
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-for as_var in LANG LANGUAGE LC_ALL LC_COLLATE LC_CTYPE LC_NUMERIC LC_MESSAGES LC_TIME
-do
-  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
-    eval $as_var=C; export $as_var
-  else
-    $as_unset $as_var
-  fi
-done
-
-# Required to use basename.
-if expr a : '\(a\)' >/dev/null 2>&1; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
+(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
+    { $as_unset LANG || test "${LANG+set}" != set; } ||
+      { LANG=C; export LANG; }
+(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
+    { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
+      { LC_ALL=C; export LC_ALL; }
+(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
+    { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
+      { LC_TIME=C; export LC_TIME; }
+(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
+    { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
+      { LC_CTYPE=C; export LC_CTYPE; }
+(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
+    { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
+      { LANGUAGE=C; export LANGUAGE; }
+(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
+    { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
+      { LC_COLLATE=C; export LC_COLLATE; }
+(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
+    { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
+      { LC_NUMERIC=C; export LC_NUMERIC; }
+(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
+    { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
+      { LC_MESSAGES=C; export LC_MESSAGES; }
 
 
 # Name of the executable.
-as_me=`$as_basename "$0" ||
+as_me=`(basename "$0") 2>/dev/null ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)$' \| \
@@ -71,7 +72,6 @@ echo X/"$0" |
   	  /^X\/\(\/\).*/{ s//\1/; q; }
   	  s/.*/./; q'`
 
-
 # PATH needs CR, and LINENO needs CR and PATH.
 # Avoid depending upon Character Ranges.
 as_cr_letters='abcdefghijklmnopqrstuvwxyz'
@@ -85,7 +85,7 @@ if test "${PATH_SEPARATOR+set}" != set; then
   echo "#! /bin/sh" >conftest.sh
   echo  "exit 0"   >>conftest.sh
   chmod +x conftest.sh
-  if (PATH="/nonexistent;."; conftest.sh) >/dev/null 2>&1; then
+  if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
     PATH_SEPARATOR=';'
   else
     PATH_SEPARATOR=:
@@ -138,8 +138,6 @@ do
   as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
   test "x$as_lineno_1" != "x$as_lineno_2" &&
   test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
-	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
-	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
 	     CONFIG_SHELL=$as_dir/$as_base
 	     export CONFIG_SHELL
 	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
@@ -212,12 +210,6 @@ else
 fi
 rm -f conf$$ conf$$.exe conf$$.file
 
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
-else
-  as_mkdir_p=false
-fi
-
 as_executable_p="test -f"
 
 # Sed expression to map a string onto a valid CPP name.
@@ -234,7 +226,7 @@ as_nl='
 IFS=" 	$as_nl"
 
 # CDPATH.
-$as_unset CDPATH
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
 
 
 # Name of the host.
@@ -248,7 +240,6 @@ exec 6>&1
 # Initializations.
 #
 ac_default_prefix=/usr/local
-ac_config_libobj_dir=.
 cross_compiling=no
 subdirs=
 MFLAGS=
@@ -305,8 +296,6 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT GCC C_INTERF_FLAGS C_PARSER_FLAGS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os LN_S INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA RANLIB ac_ct_RANLIB INDENT ac_ct_INDENT AR ac_ct_AR MPI_CC ac_ct_MPI_CC INSTALL_INFO INSTALL_COMMAND CROSS_SIMULATOR YAPMPILIB MPI_OBJS MPI_LIBS CPP EGREP INSTALL_DLLS SHLIB_CFLAGS SHLIB_SUFFIX EXEC_SUFFIX DO_SECOND_LD SHLIB_LD NEWSHOBJ YAPLIB YAP_EXTRAS DLL_LIBS NO_BUILTIN_REGEXP M4 M4GENHDRS M4GENABSMI LIBOBJS LTLIBOBJS'
-ac_subst_files=''
 
 # Initialize some variables set by options.
 ac_init_help=
@@ -730,9 +719,6 @@ if test ! -r $srcdir/$ac_unique_file; then
    { (exit 1); exit 1; }; }
   fi
 fi
-(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
-  { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
-   { (exit 1); exit 1; }; }
 srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
 ac_env_build_alias_set=${build_alias+set}
 ac_env_build_alias_value=$build_alias
@@ -917,7 +903,7 @@ esac
 # Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
 # absolute.
 ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
-ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
 ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
 ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
 
@@ -957,7 +943,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.54.  Invocation command line was
+generated by GNU Autoconf 2.53.  Invocation command line was
 
   $ $0 $@
 
@@ -1023,9 +1009,12 @@ do
   *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
     ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
   esac
-  ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
+  case " $ac_configure_args " in
+    *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+    *) ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
+       ac_sep=" " ;;
+  esac
   # Get rid of the leading space.
-  ac_sep=" "
 done
 
 # When interrupted or exit'd, cleanup temporary files, and complete
@@ -1037,7 +1026,6 @@ trap 'exit_status=$?
   # Save into config.log some information that might help in debugging.
   {
     echo
-
     cat <<\_ASBOX
 ## ---------------- ##
 ## Cache variables. ##
@@ -1060,35 +1048,6 @@ _ASBOX
     esac;
 }
     echo
-
-    cat <<\_ASBOX
-## ----------------- ##
-## Output variables. ##
-## ----------------- ##
-_ASBOX
-    echo
-    for ac_var in $ac_subst_vars
-    do
-      eval ac_val=$`echo $ac_var`
-      echo "$ac_var='"'"'$ac_val'"'"'"
-    done | sort
-    echo
-
-    if test -n "$ac_subst_files"; then
-      cat <<\_ASBOX
-## ------------- ##
-## Output files. ##
-## ------------- ##
-_ASBOX
-      echo
-      for ac_var in $ac_subst_files
-      do
-	eval ac_val=$`echo $ac_var`
-        echo "$ac_var='"'"'$ac_val'"'"'"
-      done | sort
-      echo
-    fi
-
     if test -s confdefs.h; then
       cat <<\_ASBOX
 ## ----------- ##
@@ -1096,7 +1055,7 @@ _ASBOX
 ## ----------- ##
 _ASBOX
       echo
-      sed "/^$/d" confdefs.h | sort
+      sed "/^$/d" confdefs.h
       echo
     fi
     test "$ac_signal" != 0 &&
@@ -1253,8 +1212,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
-
-          ac_config_headers="$ac_config_headers config.h"
+ac_config_headers="$ac_config_headers config.h"
 
 
 mycflags="$CFLAGS"
@@ -1463,7 +1421,9 @@ if test $ac_prog_rejected = yes; then
     # However, it has the same basename, so the bogon will be chosen
     # first if we set CC to just the basename; use the full file name.
     shift
-    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+    set dummy "$as_dir/$ac_word" ${1+"$@"}
+    shift
+    ac_cv_prog_CC="$@"
   fi
 fi
 fi
@@ -1596,6 +1556,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1624,10 +1590,11 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
 # Be careful to initialize this variable, since it used to be cached.
 # Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
 ac_cv_exeext=
-for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.*; do
-  test -f "$ac_file" || continue
+for ac_file in `ls a_out.exe a.exe conftest.exe 2>/dev/null;
+                ls a.out conftest 2>/dev/null;
+                ls a.* conftest.* 2>/dev/null`; do
   case $ac_file in
-    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
+    *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb | *.xSYM ) ;;
     a.out ) # We found the default executable, but exeext='' is most
             # certainly right.
             break;;
@@ -1641,10 +1608,8 @@ done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-{ { echo "$as_me:$LINENO: error: C compiler cannot create executables
-check \`config.log' for details." >&5
-echo "$as_me: error: C compiler cannot create executables
-check \`config.log' for details." >&2;}
+{ { echo "$as_me:$LINENO: error: C compiler cannot create executables" >&5
+echo "$as_me: error: C compiler cannot create executables" >&2;}
    { (exit 77); exit 77; }; }
 fi
 
@@ -1701,10 +1666,9 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
 # work properly (i.e., refer to `conftest.exe'), while it won't with
 # `rm'.
-for ac_file in conftest.exe conftest conftest.*; do
-  test -f "$ac_file" || continue
+for ac_file in `(ls conftest.exe; ls conftest; ls conftest.*) 2>/dev/null`; do
   case $ac_file in
-    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
+    *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb ) ;;
     *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
           export ac_cv_exeext
           break;;
@@ -1733,6 +1697,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1749,7 +1719,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (exit $ac_status); }; then
   for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
   case $ac_file in
-    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb ) ;;
     *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
        break;;
   esac
@@ -1777,6 +1747,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1825,6 +1801,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1870,97 +1852,6 @@ else
     CFLAGS=
   fi
 fi
-echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
-echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
-if test "${ac_cv_prog_cc_stdc+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_cv_prog_cc_stdc=no
-ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-#include <stdarg.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
-struct buf { int x; };
-FILE * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
-{
-  return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
-  char *s;
-  va_list v;
-  va_start (v,p);
-  s = g (p, va_arg (v,int));
-  va_end (v);
-  return s;
-}
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
-main ()
-{
-return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
-  ;
-  return 0;
-}
-_ACEOF
-# Don't try gcc -ansi; that turns off useful extensions and
-# breaks some systems' header files.
-# AIX			-qlanglvl=ansi
-# Ultrix and OSF/1	-std1
-# HP-UX 10.20 and later	-Ae
-# HP-UX older versions	-Aa -D_HPUX_SOURCE
-# SVR4			-Xc -D__EXTENSIONS__
-for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
-do
-  CC="$ac_save_CC $ac_arg"
-  rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_cv_prog_cc_stdc=$ac_arg
-break
-else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-fi
-rm -f conftest.$ac_objext
-done
-rm -f conftest.$ac_ext conftest.$ac_objext
-CC=$ac_save_CC
-
-fi
-
-case "x$ac_cv_prog_cc_stdc" in
-  x|xno)
-    echo "$as_me:$LINENO: result: none needed" >&5
-echo "${ECHO_T}none needed" >&6 ;;
-  *)
-    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
-echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
-    CC="$CC $ac_cv_prog_cc_stdc" ;;
-esac
-
 # Some people use a C++ compiler to compile C.  Since we use `exit',
 # in C++ we need to declare it.  In case someone uses the same compiler
 # for both compiling C and C++ we need to have the C++ compiler decide
@@ -1996,6 +1887,12 @@ do
 #include "confdefs.h"
 #include <stdlib.h>
 $ac_declaration
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2027,6 +1924,12 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_declaration
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2961,8 +2864,7 @@ else
   ;;
   *)
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-as_dummy="$PATH:/sbin:/usr/sbin:/usr/etc:/usr/local/sbin"
-for as_dir in $as_dummy
+for as_dir in $PATH:/sbin:/usr/sbin:/usr/etc:/usr/local/sbin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
@@ -3053,6 +2955,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include "confdefs.h"
 
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3093,18 +3001,18 @@ _ACEOF
 
 fi
 
+    yap_cv_readline=no
     if test "$prefix" = "NONE"
     then
       prefix="c:/Program\\ Files/Yap"
     fi
-    DLL_LIBS="-L /usr/lib/mingw -lmsvcrt -lmingw32  -lkernel32"
   else
-    DLL_LIBS=""
     LIBS="-lcygwin -lkernel32"
     INSTALL_COMMAND=install_unix
   fi
 elif test "$target_os" = "mingw32"
 then
+  yap_cv_readline=no
   INSTALL_COMMAND=install_win32
 
 echo "$as_me:$LINENO: checking for main in -lwsock32" >&5
@@ -3119,6 +3027,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include "confdefs.h"
 
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3163,9 +3077,7 @@ fi
   then
     prefix="c:/Program\\ Files/Yap"
   fi
-  DLL_LIBS="-L /usr/mingw/lib -lmsvcrt -lmingw32  -lkernel32"
 else
-  DLL_LIBS=""
   INSTALL_COMMAND="install_unix"
 
 echo "$as_me:$LINENO: checking for sin in -lm" >&5
@@ -3186,6 +3098,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char sin ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3245,6 +3163,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char socket ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3304,6 +3228,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char getsockname ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3356,6 +3286,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include "confdefs.h"
 
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3417,6 +3353,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char tgetent ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3476,6 +3418,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char readline ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3532,6 +3480,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include "confdefs.h"
 
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3597,6 +3551,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char MPI_Init ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3663,6 +3623,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char MPI_Init ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3743,6 +3709,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char MPE_Init_log ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3832,7 +3804,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -3865,7 +3837,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -3923,7 +3895,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -3956,7 +3928,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -4020,6 +3992,12 @@ else
 # define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
 #endif
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4061,21 +4039,6 @@ _ACEOF
 fi
 
 
-echo "$as_me:$LINENO: checking for egrep" >&5
-echo $ECHO_N "checking for egrep... $ECHO_C" >&6
-if test "${ac_cv_prog_egrep+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  if echo a | (grep -E '(a|b)') >/dev/null 2>&1
-    then ac_cv_prog_egrep='grep -E'
-    else ac_cv_prog_egrep='egrep'
-    fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
-echo "${ECHO_T}$ac_cv_prog_egrep" >&6
- EGREP=$ac_cv_prog_egrep
-
-
 echo "$as_me:$LINENO: checking for ANSI C header files" >&5
 echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
 if test "${ac_cv_header_stdc+set}" = set; then
@@ -4093,7 +4056,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -4124,7 +4087,7 @@ if test $ac_cv_header_stdc = yes; then
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then
+  egrep "memchr" >/dev/null 2>&1; then
   :
 else
   ac_cv_header_stdc=no
@@ -4142,7 +4105,7 @@ if test $ac_cv_header_stdc = yes; then
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then
+  egrep "free" >/dev/null 2>&1; then
   :
 else
   ac_cv_header_stdc=no
@@ -4201,7 +4164,7 @@ cat conftest.$ac_ext >&5
 ( exit $ac_status )
 ac_cv_header_stdc=no
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 fi
@@ -4328,7 +4291,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -4462,7 +4425,7 @@ cat conftest.$ac_ext >&5
 ( exit $ac_status )
 ac_cv_sys_restartable_syscalls=no
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 echo "$as_me:$LINENO: result: $ac_cv_sys_restartable_syscalls" >&5
@@ -4480,6 +4443,7 @@ fi
 
 
 
+
 EXEC_SUFFIX=""
 
 
@@ -4489,13 +4453,11 @@ EXEC_SUFFIX=""
 
 
 
-
-
 INSTALL_DLLS="#"
 SHLIB_LD="@#"
 DO_SECOND_LD="#"
-NEWSHOBJ="sobjs"
 M4="m4"
+MERGE_DLL_OBJS="#"
 
 if test "$dynamic_loading" = "yes"
 then
@@ -4527,6 +4489,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char dlopen ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4677,6 +4645,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char dlopen ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4748,6 +4722,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char dlopen ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4814,25 +4794,18 @@ fi
 	  INSTALL_DLLS=""
         fi
 	;;
-      *cyg*)
+      *cyg*|*mingw*)
 	# gcc on cygwin seems to have trouble with longjmp
         # and -fomit-frame-point -DBP_FREE
 	YAPLIB="libWYap.a"
 	SHLIB_CFLAGS=""
-	NEWSHOBJ="dll"
+        SHLIB_LD="gcc -shared ../../yap.dll"
 	SHLIB_SUFFIX=".dll"
 	C_PARSER_FLAGS="$C_INTERF_FLAGS"
 	EXEC_SUFFIX=".exe"
 	INSTALL_DLLS=""
-	;;
-      *mingw*)
-	# gcc on cygwin seems to have trouble with longjmp
-        # and -fomit-frame-point -DBP_FREE
-	YAPLIB="libWYap.a"
-	SHLIB_SUFFIX=".dll"
-	NEWSHOBJ="dll"
-	C_PARSER_FLAGS="$C_INTERF_FLAGS"
-	EXEC_SUFFIX=".exe"
+	DO_SECOND_LD=""
+	MERGE_DLL_OBJS=""
 	;;
       *)
 	echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
@@ -4853,6 +4826,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char dlopen ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4988,7 +4967,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -5019,7 +4998,7 @@ if test $ac_cv_header_stdc = yes; then
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then
+  egrep "memchr" >/dev/null 2>&1; then
   :
 else
   ac_cv_header_stdc=no
@@ -5037,7 +5016,7 @@ if test $ac_cv_header_stdc = yes; then
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then
+  egrep "free" >/dev/null 2>&1; then
   :
 else
   ac_cv_header_stdc=no
@@ -5096,7 +5075,7 @@ cat conftest.$ac_ext >&5
 ( exit $ac_status )
 ac_cv_header_stdc=no
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 fi
@@ -5127,6 +5106,12 @@ else
 # define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
 #endif
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -5226,7 +5211,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -5341,7 +5326,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -5459,7 +5444,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -5575,7 +5560,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -5691,7 +5676,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -5809,7 +5794,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -5924,7 +5909,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6041,7 +6026,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6157,7 +6142,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6273,7 +6258,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6388,7 +6373,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6505,7 +6490,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6619,7 +6604,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6735,7 +6720,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6852,7 +6837,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -6969,7 +6954,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -7086,7 +7071,7 @@ _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
+  egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
@@ -7147,6 +7132,103 @@ done
 
 fi
 
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
+echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_stdc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX			-qlanglvl=ansi
+# Ultrix and OSF/1	-std1
+# HP-UX 10.20 and later	-Ae
+# HP-UX older versions	-Aa -D_HPUX_SOURCE
+# SVR4			-Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+  x|xno)
+    echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+  *)
+    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
+    CC="$CC $ac_cv_prog_cc_stdc" ;;
+esac
+
 echo "$as_me:$LINENO: checking for inline" >&5
 echo $ECHO_N "checking for inline... $ECHO_C" >&6
 if test "${ac_cv_c_inline+set}" = set; then
@@ -7158,9 +7240,8 @@ for ac_kw in inline __inline__ __inline; do
 #line $LINENO "configure"
 #include "confdefs.h"
 #ifndef __cplusplus
-typedef int foo_t;
-static $ac_kw foo_t static_foo () {return 0; }
-$ac_kw foo_t foo () {return 0; }
+static $ac_kw int static_foo () {return 0; }
+$ac_kw int foo () {return 0; }
 #endif
 
 _ACEOF
@@ -7211,6 +7292,12 @@ else
 #include <sys/types.h>
 #include <time.h>
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7258,6 +7345,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7308,6 +7401,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7336,6 +7435,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7378,6 +7483,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7406,6 +7517,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7456,6 +7573,12 @@ while test "x$ac_lo" != "x$ac_hi"; do
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7506,6 +7629,12 @@ long longval () { return (long) (sizeof (int *)); }
 unsigned long ulongval () { return (long) (sizeof (int *)); }
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7554,7 +7683,7 @@ cat conftest.$ac_ext >&5
 echo "$as_me: error: cannot compute sizeof (int *), 77" >&2;}
    { (exit 1); exit 1; }; }
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 rm -f conftest.val
@@ -7578,6 +7707,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7628,6 +7763,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7656,6 +7797,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7698,6 +7845,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7726,6 +7879,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7776,6 +7935,12 @@ while test "x$ac_lo" != "x$ac_hi"; do
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7826,6 +7991,12 @@ long longval () { return (long) (sizeof (short int)); }
 unsigned long ulongval () { return (long) (sizeof (short int)); }
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7874,7 +8045,7 @@ cat conftest.$ac_ext >&5
 echo "$as_me: error: cannot compute sizeof (short int), 77" >&2;}
    { (exit 1); exit 1; }; }
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 rm -f conftest.val
@@ -7898,6 +8069,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7948,6 +8125,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7976,6 +8159,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8018,6 +8207,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8046,6 +8241,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8096,6 +8297,12 @@ while test "x$ac_lo" != "x$ac_hi"; do
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8146,6 +8353,12 @@ long longval () { return (long) (sizeof (int)); }
 unsigned long ulongval () { return (long) (sizeof (int)); }
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8194,7 +8407,7 @@ cat conftest.$ac_ext >&5
 echo "$as_me: error: cannot compute sizeof (int), 77" >&2;}
    { (exit 1); exit 1; }; }
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 rm -f conftest.val
@@ -8218,6 +8431,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8268,6 +8487,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8296,6 +8521,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8338,6 +8569,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8366,6 +8603,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8416,6 +8659,12 @@ while test "x$ac_lo" != "x$ac_hi"; do
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8466,6 +8715,12 @@ long longval () { return (long) (sizeof (long int)); }
 unsigned long ulongval () { return (long) (sizeof (long int)); }
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8514,7 +8769,7 @@ cat conftest.$ac_ext >&5
 echo "$as_me: error: cannot compute sizeof (long int), 77" >&2;}
    { (exit 1); exit 1; }; }
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 rm -f conftest.val
@@ -8538,6 +8793,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8588,6 +8849,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8616,6 +8883,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8658,6 +8931,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8686,6 +8965,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8736,6 +9021,12 @@ while test "x$ac_lo" != "x$ac_hi"; do
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8786,6 +9077,12 @@ long longval () { return (long) (sizeof (long long int)); }
 unsigned long ulongval () { return (long) (sizeof (long long int)); }
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8834,7 +9131,7 @@ cat conftest.$ac_ext >&5
 echo "$as_me: error: cannot compute sizeof (long long int), 77" >&2;}
    { (exit 1); exit 1; }; }
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 rm -f conftest.val
@@ -8858,6 +9155,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8908,6 +9211,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8936,6 +9245,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -8978,6 +9293,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9006,6 +9327,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9056,6 +9383,12 @@ while test "x$ac_lo" != "x$ac_hi"; do
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9106,6 +9439,12 @@ long longval () { return (long) (sizeof (float)); }
 unsigned long ulongval () { return (long) (sizeof (float)); }
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9154,7 +9493,7 @@ cat conftest.$ac_ext >&5
 echo "$as_me: error: cannot compute sizeof (float), 77" >&2;}
    { (exit 1); exit 1; }; }
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 rm -f conftest.val
@@ -9178,6 +9517,12 @@ else
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9228,6 +9573,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9256,6 +9607,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9298,6 +9655,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9326,6 +9689,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9376,6 +9745,12 @@ while test "x$ac_lo" != "x$ac_hi"; do
 #line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9426,6 +9801,12 @@ long longval () { return (long) (sizeof (double)); }
 unsigned long ulongval () { return (long) (sizeof (double)); }
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9474,7 +9855,7 @@ cat conftest.$ac_ext >&5
 echo "$as_me: error: cannot compute sizeof (double), 77" >&2;}
    { (exit 1); exit 1; }; }
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 rm -f conftest.val
@@ -9529,7 +9910,7 @@ cat conftest.$ac_ext >&5
 ( exit $ac_status )
 yap_cv_malloct=void
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
@@ -9583,7 +9964,7 @@ cat conftest.$ac_ext >&5
 ( exit $ac_status )
 yap_cv_gcc=no
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
@@ -9645,7 +10026,7 @@ cat conftest.$ac_ext >&5
 ( exit $ac_status )
 yap_cv_threaded_code=no
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
@@ -9708,7 +10089,7 @@ cat conftest.$ac_ext >&5
 ( exit $ac_status )
 yap_cv_ffieee=no
 fi
-rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
@@ -9738,6 +10119,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include "confdefs.h"
 #include <setjmp.h>
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9797,6 +10184,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include <signal.h>
 	#include <stdio.h>
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9854,6 +10247,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include <signal.h>
 	#include <stdio.h>
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9906,6 +10305,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -9953,6 +10358,12 @@ cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10010,6 +10421,12 @@ extern "C" void (*signal (int, void (*)(int)))(int);
 void (*signal ()) ();
 #endif
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10075,6 +10492,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10148,6 +10571,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10220,6 +10649,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10294,6 +10729,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10370,6 +10811,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10444,6 +10891,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10518,6 +10971,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10592,6 +11051,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10666,6 +11131,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10739,6 +11210,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10813,6 +11290,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10887,6 +11370,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -10954,6 +11443,12 @@ extern "C"
 char regexec ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -11023,6 +11518,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -11103,6 +11604,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -11178,6 +11685,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -11240,6 +11753,12 @@ cat >conftest.$ac_ext <<_ACEOF
 	  mpz_xor(rop,op1,op2);
 	}
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -11373,7 +11892,7 @@ mkdir -p  library/yap2swi
 mkdir -p  CHR
 mkdir -p  CLPQR
 
-                                                                                                    ac_config_files="$ac_config_files Makefile library/regex/Makefile library/system/Makefile library/random/Makefile library/yap2swi/Makefile library/mpi/Makefile .depend library/Makefile CHR/Makefile CLPQR/Makefile"
+ac_config_files="$ac_config_files Makefile library/regex/Makefile library/system/Makefile library/random/Makefile library/yap2swi/Makefile library/mpi/Makefile .depend library/Makefile CHR/Makefile CLPQR/Makefile"
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
 # tests run on this system so they can be shared between configure
@@ -11384,7 +11903,7 @@ cat >confcache <<\_ACEOF
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
 #
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# `ac_cv_env_foo' variables (set or unset) will be overriden when
 # loading this file, other *unset* `ac_cv_foo' will be assigned the
 # following values.
 
@@ -11450,21 +11969,6 @@ fi
 
 DEFS=-DHAVE_CONFIG_H
 
-ac_libobjs=
-ac_ltlibobjs=
-for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
-  # 1. Remove the extension, and $U if already installed.
-  ac_i=`echo "$ac_i" |
-         sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
-  # 2. Add them.
-  ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
-  ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
-done
-LIBOBJS=$ac_libobjs
-
-LTLIBOBJS=$ac_ltlibobjs
-
-
 
 : ${CONFIG_STATUS=./config.status}
 ac_clean_files_save=$ac_clean_files
@@ -11483,6 +11987,7 @@ SHELL=\${CONFIG_SHELL-$SHELL}
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF
+
 ## --------------------- ##
 ## M4sh Initialization.  ##
 ## --------------------- ##
@@ -11491,13 +11996,11 @@ cat >>$CONFIG_STATUS <<\_ACEOF
 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   emulate sh
   NULLCMD=:
-  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
 elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
 
+# NLS nuisances.
 # Support unset when possible.
 if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
   as_unset=unset
@@ -11505,39 +12008,34 @@ else
   as_unset=false
 fi
 
-
-# Work around bugs in pre-3.0 UWIN ksh.
-$as_unset ENV MAIL MAILPATH
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-for as_var in LANG LANGUAGE LC_ALL LC_COLLATE LC_CTYPE LC_NUMERIC LC_MESSAGES LC_TIME
-do
-  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
-    eval $as_var=C; export $as_var
-  else
-    $as_unset $as_var
-  fi
-done
-
-# Required to use basename.
-if expr a : '\(a\)' >/dev/null 2>&1; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
+(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
+    { $as_unset LANG || test "${LANG+set}" != set; } ||
+      { LANG=C; export LANG; }
+(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
+    { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
+      { LC_ALL=C; export LC_ALL; }
+(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
+    { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
+      { LC_TIME=C; export LC_TIME; }
+(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
+    { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
+      { LC_CTYPE=C; export LC_CTYPE; }
+(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
+    { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
+      { LANGUAGE=C; export LANGUAGE; }
+(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
+    { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
+      { LC_COLLATE=C; export LC_COLLATE; }
+(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
+    { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
+      { LC_NUMERIC=C; export LC_NUMERIC; }
+(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
+    { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
+      { LC_MESSAGES=C; export LC_MESSAGES; }
 
 
 # Name of the executable.
-as_me=`$as_basename "$0" ||
+as_me=`(basename "$0") 2>/dev/null ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)$' \| \
@@ -11548,7 +12046,6 @@ echo X/"$0" |
   	  /^X\/\(\/\).*/{ s//\1/; q; }
   	  s/.*/./; q'`
 
-
 # PATH needs CR, and LINENO needs CR and PATH.
 # Avoid depending upon Character Ranges.
 as_cr_letters='abcdefghijklmnopqrstuvwxyz'
@@ -11562,7 +12059,7 @@ if test "${PATH_SEPARATOR+set}" != set; then
   echo "#! /bin/sh" >conftest.sh
   echo  "exit 0"   >>conftest.sh
   chmod +x conftest.sh
-  if (PATH="/nonexistent;."; conftest.sh) >/dev/null 2>&1; then
+  if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
     PATH_SEPARATOR=';'
   else
     PATH_SEPARATOR=:
@@ -11616,8 +12113,6 @@ do
   as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
   test "x$as_lineno_1" != "x$as_lineno_2" &&
   test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
-	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
-	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
 	     CONFIG_SHELL=$as_dir/$as_base
 	     export CONFIG_SHELL
 	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
@@ -11691,12 +12186,6 @@ else
 fi
 rm -f conf$$ conf$$.exe conf$$.file
 
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
-else
-  as_mkdir_p=false
-fi
-
 as_executable_p="test -f"
 
 # Sed expression to map a string onto a valid CPP name.
@@ -11713,7 +12202,7 @@ as_nl='
 IFS=" 	$as_nl"
 
 # CDPATH.
-$as_unset CDPATH
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
 
 exec 6>&1
 
@@ -11730,7 +12219,7 @@ _ASBOX
 cat >&5 <<_CSEOF
 
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.54.  Invocation command line was
+generated by GNU Autoconf 2.53.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -11789,7 +12278,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.54,
+configured by $0, generated by GNU Autoconf 2.53,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
@@ -11810,20 +12299,17 @@ do
   --*=*)
     ac_option=`expr "x$1" : 'x\([^=]*\)='`
     ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
-    ac_shift=:
-    ;;
-  -*)
-    ac_option=$1
-    ac_optarg=$2
-    ac_shift=shift
+    shift
+    set dummy "$ac_option" "$ac_optarg" ${1+"$@"}
+    shift
     ;;
+  -*);;
   *) # This is not an option, so the user has probably given explicit
      # arguments.
-     ac_option=$1
      ac_need_defaults=false;;
   esac
 
-  case $ac_option in
+  case $1 in
   # Handling of the options.
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF
@@ -11846,12 +12332,12 @@ Try \`$0 --help' for more information." >&2;}
   --debug | --d* | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
-    $ac_shift
-    CONFIG_FILES="$CONFIG_FILES $ac_optarg"
+    shift
+    CONFIG_FILES="$CONFIG_FILES $1"
     ac_need_defaults=false;;
   --header | --heade | --head | --hea )
-    $ac_shift
-    CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
+    shift
+    CONFIG_HEADERS="$CONFIG_HEADERS $1"
     ac_need_defaults=false;;
 
   # This is an error.
@@ -12011,23 +12497,19 @@ s,@YAPMPILIB@,$YAPMPILIB,;t t
 s,@MPI_OBJS@,$MPI_OBJS,;t t
 s,@MPI_LIBS@,$MPI_LIBS,;t t
 s,@CPP@,$CPP,;t t
-s,@EGREP@,$EGREP,;t t
 s,@INSTALL_DLLS@,$INSTALL_DLLS,;t t
+s,@MERGE_DLL_OBJS@,$MERGE_DLL_OBJS,;t t
 s,@SHLIB_CFLAGS@,$SHLIB_CFLAGS,;t t
 s,@SHLIB_SUFFIX@,$SHLIB_SUFFIX,;t t
 s,@EXEC_SUFFIX@,$EXEC_SUFFIX,;t t
 s,@DO_SECOND_LD@,$DO_SECOND_LD,;t t
 s,@SHLIB_LD@,$SHLIB_LD,;t t
-s,@NEWSHOBJ@,$NEWSHOBJ,;t t
 s,@YAPLIB@,$YAPLIB,;t t
 s,@YAP_EXTRAS@,$YAP_EXTRAS,;t t
-s,@DLL_LIBS@,$DLL_LIBS,;t t
 s,@NO_BUILTIN_REGEXP@,$NO_BUILTIN_REGEXP,;t t
 s,@M4@,$M4,;t t
 s,@M4GENHDRS@,$M4GENHDRS,;t t
 s,@M4GENABSMI@,$M4GENABSMI,;t t
-s,@LIBOBJS@,$LIBOBJS,;t t
-s,@LTLIBOBJS@,$LTLIBOBJS,;t t
 CEOF
 
 _ACEOF
@@ -12098,30 +12580,25 @@ echo X"$ac_file" |
   	  /^X\(\/\/\)$/{ s//\1/; q; }
   	  /^X\(\/\).*/{ s//\1/; q; }
   	  s/.*/./; q'`
-  { if $as_mkdir_p; then
-    mkdir -p "$ac_dir"
-  else
-    as_dir="$ac_dir"
-    as_dirs=
-    while test ! -d "$as_dir"; do
-      as_dirs="$as_dir $as_dirs"
-      as_dir=`(dirname "$as_dir") 2>/dev/null ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-         X"$as_dir" : 'X\(//\)[^/]' \| \
-         X"$as_dir" : 'X\(//\)$' \| \
-         X"$as_dir" : 'X\(/\)' \| \
-         .     : '\(.\)' 2>/dev/null ||
-echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
-  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
-  	  /^X\(\/\/\)$/{ s//\1/; q; }
-  	  /^X\(\/\).*/{ s//\1/; q; }
-  	  s/.*/./; q'`
-    done
-    test ! -n "$as_dirs" || mkdir $as_dirs
-  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
-echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
-   { (exit 1); exit 1; }; }; }
+  { case "$ac_dir" in
+  [\\/]* | ?:[\\/]* ) as_incr_dir=;;
+  *)                      as_incr_dir=.;;
+esac
+as_dummy="$ac_dir"
+for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
+  case $as_mkdir_dir in
+    # Skip DOS drivespec
+    ?:) as_incr_dir=$as_mkdir_dir ;;
+    *)
+      as_incr_dir=$as_incr_dir/$as_mkdir_dir
+      test -d "$as_incr_dir" ||
+        mkdir "$as_incr_dir" ||
+	{ { echo "$as_me:$LINENO: error: cannot create \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create \"$ac_dir\"" >&2;}
+   { (exit 1); exit 1; }; }
+    ;;
+  esac
+done; }
 
   ac_builddir=.
 
@@ -12151,7 +12628,7 @@ esac
 # Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
 # absolute.
 ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
-ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
 ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
 ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
 
@@ -12341,7 +12818,7 @@ _ACEOF
 # Break up conftest.defines because some shells have a limit on the size
 # of here documents, and old seds have small limits too (100 cmds).
 echo '  # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
-echo '  if grep "^[ 	]*#[ 	]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
+echo '  if egrep "^[ 	]*#[ 	]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
 echo '  # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
 echo '  :' >>$CONFIG_STATUS
 rm -f conftest.tail
@@ -12365,7 +12842,7 @@ do
   mv conftest.tail conftest.defines
 done
 rm -f conftest.defines
-echo '  fi # grep' >>$CONFIG_STATUS
+echo '  fi # egrep' >>$CONFIG_STATUS
 echo >>$CONFIG_STATUS
 
 # Break up conftest.undefs because some shells have a limit on the size
@@ -12421,30 +12898,25 @@ echo X"$ac_file" |
   	  /^X\(\/\/\)$/{ s//\1/; q; }
   	  /^X\(\/\).*/{ s//\1/; q; }
   	  s/.*/./; q'`
-      { if $as_mkdir_p; then
-    mkdir -p "$ac_dir"
-  else
-    as_dir="$ac_dir"
-    as_dirs=
-    while test ! -d "$as_dir"; do
-      as_dirs="$as_dir $as_dirs"
-      as_dir=`(dirname "$as_dir") 2>/dev/null ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-         X"$as_dir" : 'X\(//\)[^/]' \| \
-         X"$as_dir" : 'X\(//\)$' \| \
-         X"$as_dir" : 'X\(/\)' \| \
-         .     : '\(.\)' 2>/dev/null ||
-echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
-  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
-  	  /^X\(\/\/\)$/{ s//\1/; q; }
-  	  /^X\(\/\).*/{ s//\1/; q; }
-  	  s/.*/./; q'`
-    done
-    test ! -n "$as_dirs" || mkdir $as_dirs
-  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
-echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
-   { (exit 1); exit 1; }; }; }
+      { case "$ac_dir" in
+  [\\/]* | ?:[\\/]* ) as_incr_dir=;;
+  *)                      as_incr_dir=.;;
+esac
+as_dummy="$ac_dir"
+for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
+  case $as_mkdir_dir in
+    # Skip DOS drivespec
+    ?:) as_incr_dir=$as_mkdir_dir ;;
+    *)
+      as_incr_dir=$as_incr_dir/$as_mkdir_dir
+      test -d "$as_incr_dir" ||
+        mkdir "$as_incr_dir" ||
+	{ { echo "$as_me:$LINENO: error: cannot create \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create \"$ac_dir\"" >&2;}
+   { (exit 1); exit 1; }; }
+    ;;
+  esac
+done; }
 
       rm -f $ac_file
       mv $tmp/config.h $ac_file
diff --git a/configure.in b/configure.in
index 95879a173..62dd69501 100644
--- a/configure.in
+++ b/configure.in
@@ -282,27 +282,25 @@ then
     INSTALL_COMMAND=install_win32
     CC="gcc  -mno-cygwin"
     AC_CHECK_LIB(wsock32,main)
+    yap_cv_readline=no
     if test "$prefix" = "NONE"
     then
       prefix="c:/Program\\ Files/Yap"
     fi
-    DLL_LIBS="-L /usr/lib/mingw -lmsvcrt -lmingw32  -lkernel32"
   else
-    DLL_LIBS=""
     LIBS="-lcygwin -lkernel32"
     INSTALL_COMMAND=install_unix
   fi
 elif test "$target_os" = "mingw32" 
 then
+  yap_cv_readline=no
   INSTALL_COMMAND=install_win32
   AC_CHECK_LIB(wsock32,main)
   if test "$prefix" = "NONE"
   then
     prefix="c:/Program\\ Files/Yap"
   fi
-  DLL_LIBS="-L /usr/mingw/lib -lmsvcrt -lmingw32  -lkernel32"
 else
-  DLL_LIBS=""
   INSTALL_COMMAND="install_unix"
   AC_CHECK_LIB(m,sin)
   AC_CHECK_LIB(socket,socket)
@@ -389,6 +387,8 @@ dnl Exports:
 dnl
 dnl "" if we can do dynamic linking, "#" otherwise
 AC_SUBST(INSTALL_DLLS)
+dnl if we need to merge several .o files into a single dll.
+AC_SUBST(MERGE_DLL_OBJS)
 dnl C-flags used to compile a file that will be loaded dynamically
 AC_SUBST(SHLIB_CFLAGS)
 dnl suffix for loadable binary (.so,.dll,.o)
@@ -399,23 +399,20 @@ AC_SUBST(EXEC_SUFFIX)
 dnl how to call the loader
 AC_SUBST(DO_SECOND_LD)
 AC_SUBST(SHLIB_LD)
-dnl makefile target for building YAP library or dll
-AC_SUBST(NEWSHOBJ)
 dnl objects in YAP library
 AC_SUBST(YAPLIB)
 dnl install_info
 AC_SUBST(INSTALL_INFO)
 dnl let YAP_EXTRAS fall through configure, from the env into Makefile
 AC_SUBST(YAP_EXTRAS)
-AC_SUBST(DLL_LIBS)
 AC_SUBST(NO_BUILTIN_REGEXP)
 
 dnl defaults
 INSTALL_DLLS="#"
 SHLIB_LD="@#"
 DO_SECOND_LD="#"
-NEWSHOBJ="sobjs"
 M4="m4"
+MERGE_DLL_OBJS="#"
 
 if test "$dynamic_loading" = "yes"
 then 
@@ -567,25 +564,18 @@ dnl Linux has both elf and a.out, in this case we found elf
 	  INSTALL_DLLS=""
         fi
 	;;
-      *cyg*)
+      *cyg*|*mingw*)
 	# gcc on cygwin seems to have trouble with longjmp
         # and -fomit-frame-point -DBP_FREE
 	YAPLIB="libWYap.a"
 	SHLIB_CFLAGS=""
-	NEWSHOBJ="dll"
+        SHLIB_LD="gcc -shared ../../yap.dll"
 	SHLIB_SUFFIX=".dll"
 	C_PARSER_FLAGS="$C_INTERF_FLAGS"
 	EXEC_SUFFIX=".exe"
 	INSTALL_DLLS=""
-	;;
-      *mingw*)
-	# gcc on cygwin seems to have trouble with longjmp
-        # and -fomit-frame-point -DBP_FREE
-	YAPLIB="libWYap.a"
-	SHLIB_SUFFIX=".dll"
-	NEWSHOBJ="dll"
-	C_PARSER_FLAGS="$C_INTERF_FLAGS"
-	EXEC_SUFFIX=".exe"
+	DO_SECOND_LD=""
+	MERGE_DLL_OBJS=""
 	;;
       *)
 	AC_CHECK_LIB(dl,dlopen,