libav: Allow build both static dynamic plugins

When building plugins with internal FFMPEG, we use different link
flags depending if it is static or shared. As we want to build both
static and dynamic plugins at once, rewrite the rules so we can
pass the right flags.

https://bugzilla.gnome.org/show_bug.cgi?id=779344

diff --git a/ext/libav/Makefile.am b/ext/libav/Makefile.am
index 4aeff59..2eeed00 100644 (file)
--- a/ext/libav/Makefile.am
+++ b/ext/libav/Makefile.am
@@ -30,15 +30,41 @@ libgstlibav_la_SOURCES = gstav.c    \
 #                        gstavscale.c
 
 libgstlibav_la_CFLAGS = $(LIBAV_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
-libgstlibav_la_LIBADD = $(LIBAV_LIBS) $(GST_PLUGINS_BASE_LIBS) \
+
+if HAVE_LIBAV_UNINSTALLED
+  libgstlibav_la_LIBTOOLFLAGS = --tag=disable-static
+  libgstlibav_la_LIBADD =
+if !GST_PLUGIN_BUILD_STATIC
+    libgstlibav_la_LIBADD += $(LIBAV_LIBS)
+endif
+else
+  libgstlibav_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
+  libgstlibav_la_LIBADD = $(LIBAV_LIBS)
+endif
+
+libgstlibav_la_LIBADD += $(GST_PLUGINS_BASE_LIBS) \
        -lgstaudio-$(GST_API_VERSION) -lgstvideo-$(GST_API_VERSION) \
        -lgstpbutils-$(GST_API_VERSION) $(GST_BASE_LIBS) \
        $(LIBM) $(WIN32_LIBS) -lz $(BZ2_LIBS) $(LZMA_LIBS)
 libgstlibav_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(DARWIN_LDFLAGS)
-libgstlibav_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
 
 if HAVE_LIBAV_UNINSTALLED
 libgstlibav_la_DEPENDENCIES = $(LIBAV_DEPS)
+
+if GST_PLUGIN_BUILD_STATIC
+libgstlibav_la_LINK_static = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+       --tag=disable-shared $(LIBTOOLFLAGS) --mode=link \
+       $(CCLD) $(libgstlibav_la_CFLAGS) $(CFLAGS) \
+       $(libgstlibav_la_LDFLAGS) $(LDFLAGS) -o $@
+
+libgstlibav.la: $(libgstlibav_la_OBJECTS) $(libgstlibav_la_DEPENDENCIES) $(EXTRA_libgstlibav_la_DEPENDENCIES)
+       $(AM_V_CCLD)$(libgstlibav_la_LINK) -rpath $(plugindir) $(libgstlibav_la_OBJECTS) $(LIBAV_DEPS) $(libgstlibav_la_LIBADD) $(LIBS)
+       $(AM_V_at)rm $@
+       $(AM_V_CCLD)$(libgstlibav_la_LINK_static) -rpath $(plugindir) $(libgstlibav_la_OBJECTS) $(libgstlibav_la_LIBADD) $(LIBS)
+       $(AM_V_at)mv $@ $@.tmp
+       $(AM_V_GEN) sed -e "s|^\(dependency_libs='\)|\1 $(LIBAV_LIBS)|" $@.tmp > $@ && rm $@.tmp
+endif
+
 endif