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