Conditionally build the movie thumbnailer by detecting libavcodec et al.

git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@3346 92316355-f0b4-4df1-b90c-862c8a59935f

configure.ac

@@ -212,6 +212,13 @@ if test "${enable_csharp}" != "no"; then
 fi
 AM_CONDITIONAL(USE_CSHARP, test "${ac_cv_my_have_csharp}" = "yes")
 
+# Build the movie thumbnailer?
+ac_cv_my_have_ffmpeg="yes"
+PKG_CHECK_MODULES([LIBAVCODEC], [libavcodec], [:], [ac_cv_my_have_ffmpeg=no])
+PKG_CHECK_MODULES([LIBAVFORMAT], [libavformat], [:], [ac_cv_my_have_ffmpeg=no])
+PKG_CHECK_MODULES([LIBSWSCALE], [libswscale], [:], [ac_cv_my_have_ffmpeg=no])
+AM_CONDITIONAL(USE_FFMPEG, test "${ac_cv_my_have_ffmpeg}" = "yes")
+
 # Build The Pimp?
 ac_cv_my_have_gtksharp="${ac_cv_my_have_csharp}"
 PKG_CHECK_MODULES([GLIB_SHARP_20], [glib-sharp-2.0], [:], [ac_cv_my_have_gtksharp=no])

examples/Makefile.am

@@ -3,7 +3,7 @@
 AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/pipi -I../pipi
 
 noinst_PROGRAMS = edd img2rubik sharpen floodfill line bezier histogram \
-	colorstring storyboard
+	colorstring $(storyboard)
 
 edd_SOURCES = edd.c
 edd_LDADD = ../pipi/libpipi.la
@@ -29,8 +29,11 @@ histogram_LDADD = ../pipi/libpipi.la
 colorstring_SOURCES = colorstring.c
 colorstring_LDADD = ../pipi/libpipi.la
 
+if USE_FFMPEG
+storyboard = storyboard
+endif
 storyboard_SOURCES = storyboard.c
 storyboard_LDADD = ../pipi/libpipi.la
-storyboard_CFLAGS = `pkg-config --cflags libavformat libavcodec libswscale`
-storyboard_LDFLAGS = `pkg-config --libs libavformat libavcodec libswscale`
+storyboard_CFLAGS = $(LIBAVCODEC_CFLAGS) $(LIBAVFORMAT_CFLAGS) $(LIBSWSCALE_CFLAGS)
+storyboard_LDFLAGS = $(LIBAVCODEC_LIBS) $(LIBAVFORMAT_LIBS) $(LIBSWSCALE_LIBS)