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Diffstat (limited to 'giflib-4.1.6/configure.ac')
| -rw-r--r-- | giflib-4.1.6/configure.ac | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/giflib-4.1.6/configure.ac b/giflib-4.1.6/configure.ac new file mode 100644 index 0000000..d394af7 --- /dev/null +++ b/giflib-4.1.6/configure.ac @@ -0,0 +1,128 @@ +dnl Process this file with autoconf to produce a configure script. +AC_INIT(giflib, [4.1.6], [abadger1999@sourceforge.net], giflib) +AC_CONFIG_SRCDIR([lib/dgif_lib.c]) +AM_INIT_AUTOMAKE([gnu check-news dist-bzip2 -Wall]) +AM_CONFIG_HEADER(config.h) + +dnl Checks for programs. +AC_PROG_LIBTOOL +AC_PROG_CC +AC_PROG_CPP +AC_PROG_INSTALL +AC_PROG_LN_S +AC_PROG_MAKE_SET +AM_PROG_CC_C_O + +dnl Define warnings if we're compiling with gcc. +dnl Set it in CFLAGS so the end-user can disable it if they wish. +if test "x$GCC" = "xyes" ; then + CFLAGS="$CFLAGS -Wall" +fi + +dnl Checks for libraries. + +AC_CHECK_LIB(m, pow, [MATH_LIB="${MATH_LIB} -lm" + COMPILABLE_EXTRAS="${COMPILABLE_EXTRAS} gifclrmp${EXEEXT} gifrotat${EXEEXT}"] ) + +AC_ARG_ENABLE(rle, AC_HELP_STRING([rle],[detect whether we can support conversion to/from rle]), + enable_rle=$enableval, enable_rle=auto) + +AC_ARG_ENABLE(x11, AC_HELP_STRING([x11],[detect whether we can support conversion directly to X11 Windows]), + enable_x11=$enableval, enable_x11=auto) + +AC_ARG_ENABLE(gl, AC_HELP_STRING([gl],[detect whether we can support conversion to/from gl]), + enable_gl=$enableval, enable_gl=auto) + +dnl I don't have this on my system. Could someone else configure it and +dnl check that it works? +if test "x$enable_rle" != "xno" ; then + if test ${MATH_LIB}; then + AC_CHECK_HEADERS([rle.h], + AC_CHECK_LIB(rle, rle_hdr_init, [RLE_LIB="${RLE_LIBS} -lrle -lm" + COMPILABLE_EXTRAS="${COMPILABLE_EXTRAS} gif2rle${EXEEXT} rle2gif${EXEEXT}"], + ,"-lm" )) + fi +fi + +if test "x$enable_gl" != "xno" ; then + AC_CHECK_HEADERS([gl/gl.h], + AC_CHECK_LIB(gl_s, main, [GL_S_LIB="${GL_S_LIB} -lgl_s $X_LIBS" + AC_DEFINE(HAVE_LIBGL_S, [1], [Define if the gl_s library is installed (SGI GL library)]) + COMPILABLE_EXTRAS="${COMPILABLE_EXTRAS} gif2iris${EXEEXT}"],, $X_LIBS)) +fi + +if test "x$enable_x11" != "xno" ; then + AC_PATH_XTRA + AC_CHECK_HEADERS([X11/Xlib.h X11/Xutil.h], + AC_CHECK_LIB(X11, main, [X11_LIB="${X11_LIB} ${X_PRE_LIBS} $X_LIBS ${X_EXTRA_LIBS} -lX11" + AC_DEFINE(HAVE_LIBX11, [1], [Define if the X11 library is installed]) + COMPILABLE_EXTRAS="${COMPILABLE_EXTRAS} gif2x11${EXEEXT}"],, $X_LIBS)) +fi + +DEVS="${GL_S_LIB} ${X11_LIB}" +AC_SUBST(DEVS) +AC_SUBST(COMPILABLE_EXTRAS) +AC_SUBST(GL_S_LIB) +AC_SUBST(X11_LIB) +AC_SUBST(X_CFLAGS) +AC_SUBST(MATH_LIB) +AC_SUBST(RLE_LIB) + +dnl Checks for header files. +AC_HEADER_STDC +dnl * HEADER_STDC checks for stdargs.h so this is a bit redundant. +dnl * The code will prefer stdargs.h if available. +dnl If not available, we will try to fallback to using varargs.h +AC_CHECK_HEADERS([stdarg.h varargs.h], break, + AC_MSG_ERROR([giflib 4.x must have stdarg.h or varargs.h])) + +AC_CHECK_HEADERS(fcntl.h, , + AC_MSG_ERROR([giflib 4.x must have fcntl.h to compile])) + +dnl Now look for a 32 bit integer type +foundint=no +AC_CHECK_TYPES([u_int32_t], [AC_DEFINE([UINT32], u_int32_t, + [Set to an unsigned 32 bit integer available on this system]) + foundint=yes] +) +if test x$foundint != x'yes'; then + AC_CHECK_TYPES([uint32_t], [AC_DEFINE([UINT32], uint32_t, + [Set to an unsigned 32 bit integer available on this system]) + foundint=yes] + ) +fi + +dnl Fall back on trying to find one ourselves by compiling and checking sizes. +if test x$foundint != x'yes'; then + AC_CHECK_SIZEOF(unsigned int) + if test $ac_cv_sizeof_unsigned_int -eq 4; then + AC_DEFINE([UINT32], [unsigned int], + [Set to an unsigned 32 bit integer available on this system]) + else + AC_CHECK_SIZEOF(unsigned long) + if test $ac_cv_sizeof_unsigned_long -eq 4; then + AC_DEFINE([UINT32], [unsigned long], + [Set to an unsigned 32 bit integer available on this system]) + else + AC_ERROR("Unable to find a thirty-two bit integer type") + fi + fi +fi + +dnl Checks for typedefs, structures, and compiler characteristics. +AC_C_CONST + +dnl Checks for library functions. +AC_FUNC_MEMCMP +AC_FUNC_SETVBUF_REVERSED +AC_FUNC_VPRINTF +AC_CHECK_FUNCS(strdup) + +AC_CONFIG_FILES([ +util/Makefile +lib/Makefile +Makefile +doc/Makefile +pic/Makefile +]) +AC_OUTPUT |