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configure: add GLUT detection; build vwebp
Change-Id: I7f0964db2d04c22ff9ec274e8cd1cbed7379a165
(cherry picked from commit 0e513f7ae3)
This commit is contained in:
James Zern
parent
b0ffc43700
commit
e676b04309
87
configure.ac
87
configure.ac
@ -83,6 +83,92 @@ if test "$enable_threading" = "yes"; then
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fi
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AC_MSG_NOTICE([checking if threading is enabled... ${enable_threading-no}])
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dnl === check for OpenGL/GLUT support ===
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CLEAR_LIBVARS([GL])
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WITHLIB_OPTION([gl], [GL])
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LIBCHECK_PROLOGUE([GL])
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glut_cflags="none"
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glut_ldflags="none"
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case $host_os in
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darwin*)
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# Special case for OSX builds. Append these to give the user a chance to
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# override with --with-gl*
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glut_cflags="$glut_cflags|-framework GLUT -framework OpenGL"
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glut_ldflags="$glut_ldflags|-framework GLUT -framework OpenGL"
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;;
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esac
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GLUT_SAVED_CPPFLAGS="$CPPFLAGS"
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SAVED_IFS="$IFS"
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IFS="|"
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for flag in $glut_cflags; do
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# restore IFS immediately as the autoconf macros may need the default.
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IFS="$SAVED_IFS"
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unset ac_cv_header_GL_glut_h
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unset ac_cv_header_OpenGL_glut_h
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case $flag in
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none) ;;
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*) CPPFLAGS="$flag $CPPFLAGS";;
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esac
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AC_CHECK_HEADERS([GL/glut.h GLUT/glut.h OpenGL/glut.h],
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[glut_headers=yes;
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test "$flag" = "none" || GL_INCLUDES="$CPPFLAGS";
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break])
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CPPFLAGS="$GLUT_SAVED_CPPFLAGS"
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test "$glut_headers" = "yes" && break
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done
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IFS="$SAVED_IFS"
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if test "$glut_headers" = "yes"; then
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AC_LANG_PUSH([C])
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GLUT_SAVED_LDFLAGS="$LDFLAGS"
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SAVED_IFS="$IFS"
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IFS="|"
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for flag in $glut_ldflags; do
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# restore IFS immediately as the autoconf macros may need the default.
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IFS="$SAVED_IFS"
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unset ac_cv_search_glBegin
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case $flag in
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none) ;;
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*) LDFLAGS="$flag $LDFLAGS";;
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esac
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# find libGL
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GL_SAVED_LIBS="$LIBS"
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AC_SEARCH_LIBS([glBegin], [GL OpenGL])
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LIBS="$GL_SAVED_LIBS"
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# A direct link to libGL may not be necessary on e.g., linux.
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for lib in "" $ac_cv_search_glBegin; do
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unset ac_cv_search_glutMainLoop
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AC_SEARCH_LIBS([glutMainLoop], [glut], [glut_support=yes], [], [$lib])
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if test "$glut_support" = "yes"; then
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GL_LIBS="$LDFLAGS"
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if test "$ac_cv_search_glutMainLoop" != "none required"; then
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GL_LIBS="$GL_LIBS $ac_cv_search_glutMainLoop"
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fi
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GL_LIBS="$GL_LIBS $lib"
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break
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fi
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done
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LDFLAGS="$GLUT_SAVED_LDFLAGS"
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test "$glut_support" = "yes" && break
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done
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IFS="$SAVED_IFS"
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AC_LANG_POP
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fi
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LIBCHECK_EPILOGUE([GL])
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if test "$glut_support" = "yes" -a "$enable_libwebpdemux" = "yes"; then
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build_vwebp=yes
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fi
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AM_CONDITIONAL([BUILD_VWEBP], [test "$build_vwebp" = "yes"])
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dnl === check for PNG support ===
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CLEAR_LIBVARS([PNG])
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@ -319,4 +405,5 @@ dwebp: yes
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WIC : ${wic_support-no}
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gif2webp : ${build_gif2webp-no}
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webpmux : ${enable_libwebpmux-no}
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vwebp : ${build_vwebp-no}
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])
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@ -1,6 +1,9 @@
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AM_CPPFLAGS = -I$(top_srcdir)/src
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bin_PROGRAMS = dwebp cwebp
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if BUILD_VWEBP
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bin_PROGRAMS += vwebp
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endif
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if WANT_MUX
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bin_PROGRAMS += webpmux
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endif
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@ -18,12 +21,6 @@ dwebp_CPPFLAGS = $(AM_CPPFLAGS) $(USE_EXPERIMENTAL_CODE)
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dwebp_CPPFLAGS += $(JPEG_INCLUDES) $(PNG_INCLUDES)
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dwebp_LDADD = libexampleutil.la $(PNG_LIBS) $(JPEG_LIBS)
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if BUILD_LIBWEBPDECODER
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dwebp_LDADD += ../src/libwebpdecoder.la
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else
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dwebp_LDADD += ../src/libwebp.la
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endif
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cwebp_SOURCES = cwebp.c metadata.c metadata.h stopwatch.h
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cwebp_SOURCES += jpegdec.c jpegdec.h
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cwebp_SOURCES += pngdec.c pngdec.h
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@ -41,3 +38,15 @@ gif2webp_LDADD += $(GIF_LIBS)
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webpmux_SOURCES = webpmux.c
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webpmux_CPPFLAGS = $(AM_CPPFLAGS) $(USE_EXPERIMENTAL_CODE)
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webpmux_LDADD = libexampleutil.la ../src/mux/libwebpmux.la ../src/libwebp.la
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vwebp_SOURCES = vwebp.c
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vwebp_CPPFLAGS = $(AM_CPPFLAGS) $(USE_EXPERIMENTAL_CODE) $(GL_INCLUDES)
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vwebp_LDADD = libexampleutil.la ../src/demux/libwebpdemux.la $(GL_LIBS)
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if BUILD_LIBWEBPDECODER
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dwebp_LDADD += ../src/libwebpdecoder.la
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vwebp_LDADD += ../src/libwebpdecoder.la
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else
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dwebp_LDADD += ../src/libwebp.la
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vwebp_LDADD += ../src/libwebp.la
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endif
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@ -8,12 +8,15 @@
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// Simple OpenGL-based WebP file viewer.
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//
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// Author: Skal (pascal.massimino@gmail.com)
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef __APPLE__
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#if defined(HAVE_GLUT_GLUT_H)
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#include <GLUT/glut.h>
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#else
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#include <GL/glut.h>
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@ -24,6 +24,7 @@ ifeq ($(strip $(shell uname)), Darwin)
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# cf., src/enc/yuv.[hc]
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# Failure observed with: gcc 4.2.1 and 4.0.1.
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EXTRA_FLAGS += -fno-common
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EXTRA_FLAGS += -DHAVE_GLUT_GLUT_H
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EXTRA_FLAGS += -I/opt/local/include
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EXTRA_LIBS += -L/opt/local/lib
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GL_LIBS = -framework GLUT -framework OpenGL
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