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dnl Process this file with autoconf to produce a configure script.
AC_INIT(gifsicle.h)
AM_INIT_AUTOMAKE(gifsicle, 1.23)
AM_CONFIG_HEADER(config.h)
AC_PROG_CC
AC_PROG_CPP
AC_C_CONST
AC_C_INLINE
build_gifview=yes
AC_ARG_ENABLE(gifview,
[ --disable-gifview do not build gifview, a GIF viewer for X11],
if test "x$enableval" != xyes ; then
build_gifview=no
fi)
build_gifdiff=yes
AC_ARG_ENABLE(gifdiff,
[ --disable-gifdiff do not build gifdiff, a utility for comparing GIFs],
if test "x$enableval" != xyes ; then
build_gifdiff=no
fi)
use_dmalloc=
AC_ARG_ENABLE(dmalloc,
[ --enable-dmalloc build with debugging malloc library],
if test "x$enableval" = xyes ; then
use_dmalloc=yes
fi)
AC_ARG_ENABLE(warnings,
[ --enable-warnings compile with -Wall],
if test "x$enableval" = xyes ; then
CC="$CC -Wall"
fi)
AC_ARG_ENABLE(all,
[ --enable-all --enable-gifview --enable-gifdiff --enable-warnings],
if test "x$enableval" = xyes ; then
build_gifview=yes
build_gifdiff=yes
CC="$CC -Wall"
fi)
ungif=
AC_ARG_ENABLE(ungif,
[ --enable-ungif build without compression (no patent problems)],
if test "x$enableval" = xyes ; then
ungif=yes
fi)
dnl
dnl Choose programs to build. Always build gifsicle
dnl
OTHERPROGRAMS=""
OTHERMANS=""
if test "x$build_gifview" = xyes ; then
OTHERPROGRAMS="$OTHERPROGRAMS gifview"
OTHERMANS="$OTHERMANS gifview.1"
AC_PATH_XTRA
AC_CACHE_CHECK(for gettimeofday prototype, ac_cv_gettimeofday,
[AC_TRY_COMPILE([#include <time.h>
#include <sys/time.h>],
[gettimeofday((void *)0, (void *)0);],
[AC_TRY_COMPILE([#include <time.h>
#include <sys/time.h>],
[gettimeofday((void *)0);],
ac_cv_gettimeofday=0,
ac_cv_gettimeofday=2)],
ac_cv_gettimeofday=1)])
AC_DEFINE_UNQUOTED(GETTIMEOFDAY_PROTO, $ac_cv_gettimeofday)
else
AC_DEFINE_UNQUOTED(X_DISPLAY_MISSING, 1)
fi
if test "x$build_gifdiff" = xyes ; then
OTHERPROGRAMS="$OTHERPROGRAMS gifdiff"
OTHERMANS="$OTHERMANS gifdiff.1"
fi
AC_SUBST(OTHERPROGRAMS)dnl
AC_SUBST(OTHERMANS)dnl
dnl
dnl Set up malloc library
dnl
if test "x$use_dmalloc" = xyes ; then
AC_DEFINE(DMALLOC)
MALLOC_O=dmalloc.o
else
MALLOC_O=fmalloc.o
fi
AC_SUBST(MALLOC_O)dnl
dnl
dnl Set up `ungif' support
dnl
if test "x$ungif" = xyes -o "x$GIFSICLE_UNGIF" = xyes ; then
GIFWRITE_O=ungifwrt.o
AC_DEFINE(GIF_UNGIF)
elif test -r $srcdir/gifwrite.c ; then
GIFWRITE_O=gifwrite.o
else
AC_MSG_ERROR(This version of gifsicle cannot create compressed GIFs.
*** Either reconfigure with the \`--enable-ungif' option or download the
*** version with compression from http://www.lcdf.org/gifsicle/)
fi
AC_SUBST(GIFWRITE_O)
dnl
dnl random or rand, strerror, strtoul, sys/select.h
dnl
AC_CHECK_FUNC(random, random_func=random, random_func=rand)
AC_DEFINE_UNQUOTED(RANDOM, ${random_func})
AC_REPLACE_FUNCS(strerror)
AC_CHECK_FUNCS(strtoul)
AC_CHECK_HEADERS(sys/select.h)
dnl
dnl Integer typedefs
dnl
AC_CACHE_CHECK(for integer typedefs, ac_cv_int_types,
[AC_EGREP_HEADER(u_int32_t, sys/types.h, ac_cv_int_types=yes,
AC_EGREP_HEADER(uint32_t, sys/types.h, ac_cv_int_types=close,
ac_cv_int_types=no))])
if test "$ac_cv_int_types" = no ;
then
# Define our own versions
AC_CACHE_CHECK(for a 16-bit value, ac_cv_int16,
[AC_TRY_RUN([#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv) {
FILE *f = fopen("conftestval", "w");
if (!f) exit(1);
if (sizeof(short) == 2) fprintf(f, "short\n");
else exit(1);
fclose(f);
exit(0);
}], ac_cv_int16=`cat conftestval`,
AC_MSG_ERROR(no 16-bit value found),
ac_cv_int16=short)])
AC_CACHE_CHECK(for a 32-bit value, ac_cv_int32,
[AC_TRY_RUN([#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv) {
FILE *f = fopen("conftestval", "w");
if (!f) exit(1);
if (sizeof(int) == 4) fprintf(f, "int\n");
else if (sizeof(long) == 4) fprintf(f, "long\n");
else exit(1);
fclose(f);
exit(0);
}], ac_cv_int32=`cat conftestval`,
AC_MSG_ERROR(no 32-bit value found),
ac_cv_int32=int)])
fi
if test "$ac_cv_int_types" = no ;
then
AC_DEFINE_UNQUOTED(u_int16_t, unsigned $ac_cv_int16)
AC_DEFINE_UNQUOTED(u_int32_t, unsigned $ac_cv_int32)
AC_DEFINE_UNQUOTED(int32_t, $ac_cv_int32)
elif test "$ac_cv_int_types" = close ;
then
AC_DEFINE(NEED_SYS_TYPES_H)
AC_DEFINE(u_int16_t, uint16_t)
AC_DEFINE(u_int32_t, uint32_t)
else
AC_DEFINE(NEED_SYS_TYPES_H)
fi
dnl
dnl Output
dnl
AC_OUTPUT(Makefile)
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