| AC_INIT([libwebp], [0.1.3], |
| [http://code.google.com/p/webp/issues],, |
| [http://code.google.com/speed/webp]) |
| AC_CANONICAL_TARGET |
| AM_INIT_AUTOMAKE([-Wall foreign subdir-objects]) |
| AC_PROG_LIBTOOL |
| AM_PROG_CC_C_O |
| |
| dnl === Enable less verbose output when building. |
| dnl === If an older aclocal exits with an error comment these lines out. |
| m4_define_default([AM_SILENT_RULES], []) |
| AM_SILENT_RULES |
| |
| AC_ARG_WITH([pkgconfigdir], AS_HELP_STRING([--with-pkgconfigdir=DIR], |
| [Path to the pkgconfig directory @<:@LIBDIR/pkgconfig@:>@]), |
| [pkgconfigdir="$withval"], [pkgconfigdir='${libdir}/pkgconfig']) |
| AC_SUBST([pkgconfigdir]) |
| |
| dnl === Check for native log2 |
| AC_SEARCH_LIBS([log2], [m],, |
| [AC_DEFINE([NOT_HAVE_LOG2], [1], |
| [Undefine this if you have log2().])]) |
| |
| dnl === check for PNG support === |
| |
| PNG_INCLUDES="" |
| PNG_LIBS="" |
| AC_PATH_PROG(LIBPNG_CONFIG, libpng-config) |
| if test -n "$LIBPNG_CONFIG"; then |
| PNG_INCLUDES=`$LIBPNG_CONFIG --cflags` |
| PNG_PREFIX=`$LIBPNG_CONFIG --prefix` |
| if test "${PNG_PREFIX}/lib" != "/usr/lib" ; then |
| PNG_LIBS="-L${PNG_PREFIX}/lib" |
| fi |
| fi |
| |
| AC_ARG_WITH([pngincludedir], |
| AS_HELP_STRING([--with-pngincludedir=DIR], |
| [use PNG includes from DIR]), |
| PNG_INCLUDES="-I$withval") |
| AC_ARG_WITH([pnglibdir], |
| AS_HELP_STRING([--with-pnglibdir=DIR], |
| [use PNG libraries from DIR]), |
| [PNG_LIBS="-L$withval"]) |
| |
| SAVED_CPPFLAGS=$CPPFLAGS |
| SAVED_LIBS=$LIBS |
| CPPFLAGS="$PNG_INCLUDES $CPPFLAGS" |
| LIBS="$PNG_LIBS $LIBS" |
| |
| AC_CHECK_HEADER(png.h, |
| AC_CHECK_LIB(png, png_get_libpng_ver, |
| [PNG_LIBS="$PNG_LIBS -lpng" |
| PNG_INCLUDES="$PNG_INCLUDES -DWEBP_HAVE_PNG" |
| AC_DEFINE(WEBP_HAVE_PNG, [1], [Set to 1 if PNG library is installed]) |
| ], |
| AC_MSG_WARN(Optional png library not found), |
| [$MATH_LIBS]), |
| AC_MSG_WARN(png library not available - no png.h) |
| ) |
| AC_SUBST(PNG_LIBS) |
| AC_SUBST(PNG_INCLUDES) |
| |
| CPPFLAGS=$SAVED_CPPFLAGS |
| LIBS=$SAVED_LIBS |
| |
| dnl === check for JPEG support === |
| |
| JPEG_INCLUDES="" |
| JPEG_LIBS="" |
| AC_ARG_WITH([jpegincludedir], |
| [AS_HELP_STRING([--with-jpegincludedir=DIR], |
| [use JPEG includes from DIR])], |
| JPEG_INCLUDES="-I$withval") |
| AC_ARG_WITH([jpeglibdir], |
| AS_HELP_STRING([--with-jpeglibdir=DIR], |
| [use JPEG libraries from DIR]), |
| [JPEG_LIBS="-L$withval"]) |
| |
| SAVED_CPPFLAGS=$CPPFLAGS |
| SAVED_LIBS=$LIBS |
| CPPFLAGS="$JPEG_INCLUDES $CPPFLAGS" |
| LIBS="$JPEG_LIBS $LIBS" |
| |
| AC_CHECK_HEADER(jpeglib.h, |
| AC_CHECK_LIB(jpeg, jpeg_set_defaults, |
| [JPEG_LIBS="$JPEG_LIBS -ljpeg" |
| JPEG_INCLUDES="$JPEG_INCLUDES -DWEBP_HAVE_JPEG" |
| AC_DEFINE(WEBP_HAVE_JPEG, [1], [Set to 1 if JPEG library is installed]) |
| ], |
| AC_MSG_WARN(Optional jpeg library not found), |
| [$MATH_LIBS]), |
| AC_MSG_WARN(jpeg library not available - no jpeglib.h) |
| ) |
| AC_SUBST(JPEG_LIBS) |
| AC_SUBST(JPEG_INCLUDES) |
| |
| CPPFLAGS=$SAVED_CPPFLAGS |
| LIBS=$SAVED_LIBS |
| |
| dnl === check for WIC support === |
| |
| if test "$target_os" = "mingw32"; then |
| AC_CHECK_HEADERS([wincodec.h shlwapi.h windows.h]) |
| if test "$ac_cv_header_wincodec_h" = "yes"; then |
| AC_MSG_CHECKING(for Windows Imaging Component support) |
| SAVED_LIBS=$LIBS |
| LIBS="-lshlwapi -lole32 $LIBS" |
| # match include structure from [cd]webp.c |
| wic_headers=" |
| #define INITGUID |
| #define CINTERFACE |
| #define COBJMACROS |
| #define _WIN32_IE 0x500 |
| |
| #include <shlwapi.h> |
| #include <windows.h> |
| #include <wincodec.h> |
| " |
| # test for functions from each lib and the GUID is created properly |
| wic_main=" |
| int main(void) { |
| CLSID_WICImagingFactory; |
| CoInitialize(NULL); |
| SHCreateStreamOnFile(NULL, 0, NULL); |
| return 0; |
| } |
| " |
| AC_LANG_PUSH(C) |
| AC_LINK_IFELSE( |
| [AC_LANG_SOURCE([ |
| $wic_headers |
| $wic_main])], |
| [wic_support=yes], |
| [wic_support=no] |
| ) |
| AC_LANG_POP |
| |
| test "$wic_support" = "yes" || LIBS=$SAVED_LIBS |
| AC_MSG_RESULT(${wic_support-no}) |
| fi |
| fi |
| |
| dnl === If --enable-experimental is defined, add the flag WEBP_EXPERIMENTAL_FEATURES |
| |
| USE_EXPERIMENTAL_CODE="" |
| AC_MSG_CHECKING(if --enable-experimental option is specified) |
| AC_ARG_ENABLE([experimental], AS_HELP_STRING([--enable-experimental], |
| [Activate experimental features])) |
| if test "$enable_experimental" = "yes"; then |
| AC_DEFINE(EXPERIMENTAL,,[Enable experimental code]) |
| USE_EXPERIMENTAL_CODE="-DWEBP_EXPERIMENTAL_FEATURES" |
| fi |
| AC_MSG_RESULT(${enable_experimental-no}) |
| AC_SUBST(USE_EXPERIMENTAL_CODE) |
| |
| dnl ========================= |
| |
| AC_CONFIG_MACRO_DIR([m4]) |
| AC_CONFIG_HEADERS([config.h]) |
| AC_CONFIG_FILES([Makefile src/Makefile man/Makefile \ |
| examples/Makefile src/dec/Makefile \ |
| src/enc/Makefile src/dsp/Makefile \ |
| src/utils/Makefile \ |
| src/mux/Makefile \ |
| src/libwebp.pc]) |
| |
| |
| AC_OUTPUT |