gst1-libav: Fix Makefile syntax error.

gstreamer1: Fix failures on buildbot mips platforms (accidently finds libunwind)

Signed-off-by: Ted Hess <thess@kitschensync.net>

multimedia/gst1-libav/Makefile

@@ -146,6 +146,7 @@ LIBAV_CONFIGURE_PROTOCOLS:=$(call FILTER_CONFIG,PROTOCOL,protocol,$(LIBAV_PROTOC
 
 CONFIGURE_ARGS += \
 	--without-system-libav \
+	--with-libav-extra-configure=" \
 	--disable-bsfs \
 	--disable-programs \
 	--disable-devices \

multimedia/gstreamer1/Makefile

@@ -121,6 +121,7 @@ CONFIGURE_ARGS += \
 	--disable-examples \
 	--disable-tests \
 	--disable-valgrind \
+	--disable-gst-tracer-hooks \
 	--without-libiconv-prefix \
 	--without-libintl-prefix \
 	--without-x \

multimedia/gstreamer1/patches/004-no-unwind.patch

@@ -0,0 +1,23 @@
+--- a/configure.ac
++++ b/configure.ac
+@@ -826,20 +826,6 @@ if test "x$BUILD_EXAMPLES" = "xyes"; the
+ fi
+ AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")
+ 
+-dnl libunwind is optionally used by the leaks tracer
+-PKG_CHECK_MODULES(UNWIND, libunwind, HAVE_UNWIND=yes, HAVE_UNWIND=no)
+-
+-dnl Check for backtrace() from libc
+-AC_CHECK_FUNC(backtrace, [
+-  AC_CHECK_HEADERS([execinfo.h], [
+-    AC_DEFINE(HAVE_BACKTRACE,1,[Have backtrace])
+-  ], [], [])
+-])
+-
+-if test "x$HAVE_UNWIND" = "xyes"; then
+-  AC_DEFINE(HAVE_UNWIND, 1, [libunwind available])
+-fi
+-
+ dnl building of unit test libraries
+ AC_ARG_ENABLE(check,
+   AS_HELP_STRING([--disable-check],[disable building unit test libraries]),