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