zlib

packages/zlib/configure.in

@@ -0,0 +1,33 @@
+dnl Process this file with autoconf to produce a configure script.
+
+AC_INIT(install-sh)
+AC_PREREQ([2.50])
+AC_CONFIG_HEADER(config.h)
+
+AC_SUBST(TARGETS)
+AC_SUBST(PLTARGETS)
+
+m4_include([../ac_swi_c.m4])
+
+AC_CHECK_HEADERS(zlib.h zutil.h)
+AC_CHECK_LIB(z, zlibVersion,
+	     LIBS="$LIBS -lz"
+	     ZLIB=yes,
+	     ZLIB=no)
+
+if test "$ZLIB" = yes; then
+  TARGETS="zlib4pl.$SO"
+  PLTARGETS=zlib.pl
+else
+  TARGETS=nolib
+  cat << EOF
+##################################################################
+# ERROR: Could not find library zlib (-lz).  Dropped library(zlib)
+# Library zlib is available from http://www.zlib.net/
+# Most Unix/Linux distributions are shipped with binaries.  Make
+# sure to have the development library installed.
+##################################################################
+EOF
+fi
+
+AC_OUTPUT(Makefile)