106 lines
1.9 KiB
Plaintext
106 lines
1.9 KiB
Plaintext
dnl Process this file with autoconf to produce a configure script.
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dnl $Id$
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dnl
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dnl Copyright 1998 - 1999 Double Precision, Inc. See COPYING for
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dnl distribution information.
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AC_INIT(rfc822.c)
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AC_PREREQ([2.50])
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AC_CONFIG_HEADER(config.h)
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AC_SUBST(AR)
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dnl Checks for programs.
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AC_PROG_CC
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AC_CHECK_PROG(AR, ar, ar, ar)
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AC_PROG_RANLIB
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AC_USE_SYSTEM_EXTENSIONS
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if test "$GCC" = yes ; then
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CXXFLAGS="$CXXFLAGS -Wall"
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CFLAGS="$CFLAGS -Wall"
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fi
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dnl Checks for libraries.
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dnl Checks for header files.
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AC_HEADER_STDC
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_TYPE_SIZE_T
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AC_STRUCT_TM
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dnl Checks for library functions.
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AC_CHECK_FUNCS(strcasecmp strncasecmp)
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AC_CACHE_CHECK([how to calculate alternate timezone],librfc822_cv_SYS_TIMEZONE,
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AC_TRY_COMPILE([
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#include <time.h>
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],[
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int main()
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{
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time_t t=altzone;
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int offset = -timezone;
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return (0);
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}
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], librfc822_cv_SYS_TIMEZONE=altzone,
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AC_TRY_COMPILE([
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#include <time.h>
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],[
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int main()
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{
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int n=daylight;
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int offset = -timezone;
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return (0);
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}
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], librfc822_cv_SYS_TIMEZONE=daylight,
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AC_TRY_COMPILE([
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#include <time.h>
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extern struct tm dummy;
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],[
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int main()
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{
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long n=dummy.tm_gmtoff;
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return (0);
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}
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] ,librfc822_cv_SYS_TIMEZONE=tm_gmtoff,
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librfc822_cv_SYS_TIMEZONE=unknown
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)
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)
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)
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)
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case $librfc822_cv_SYS_TIMEZONE in
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tm_gmtoff)
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AC_DEFINE_UNQUOTED(USE_TIME_GMTOFF,1,
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[Whether time offset is specified via the tm_gmtoff member])
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;;
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altzone)
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AC_DEFINE_UNQUOTED(USE_TIME_ALTZONE,1,
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[Whether daylight savings time offset is set via the altzone variable])
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;;
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daylight)
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AC_DEFINE_UNQUOTED(USE_TIME_DAYLIGHT,1,
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[Whether daylight savings time offset is set via the tm_isdst member])
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;;
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*)
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AC_MSG_WARN(Cannot figure out how to calculate the alternate timezone, will use GMT)
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;;
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esac
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if test -d ../unicode
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then
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AC_DEFINE_UNQUOTED(HAVE_LIBUNICODE,1,[Whether we have libunicode.a])
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fi
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AC_OUTPUT(Makefile)
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