--- a/contrib/ffmpeg/module.defs
+++ b/contrib/ffmpeg/module.defs
@@ -34,6 +34,7 @@
     --disable-filters \
     --disable-hwaccels \
     --disable-vdpau \
+    --disable-vulkan \
     --disable-encoders \
     --enable-libmp3lame \
     --enable-encoder=aac \
@@ -78,7 +79,8 @@ FFMPEG.CONFIGURE.extra = \
     --enable-filter=hwdownload \
     --enable-filter=hwmap \
     --enable-filter=hwupload \
-    --cc="$(FFMPEG.GCC.gcc)"
+    --cc="@PREFIX@/bin/@CC@" \
+    --cxx="@PREFIX@/bin/@CXX@"
 
 ifeq (size-aggressive,$(GCC.O))
 FFMPEG.CONFIGURE.extra += \
@@ -131,6 +133,8 @@ ifeq (darwin,$(HOST.system))
         FFMPEG.CONFIGURE.extra += --arch=x86_64
     else ifeq (arm64,$(HOST.arch))
         FFMPEG.CONFIGURE.extra += --arch=arm64 --enable-hwaccel=vp9_videotoolbox
+    else
+        FFMPEG.CONFIGURE.extra += --arch=ppc
     endif
 
     ifeq (1,$(HOST.cross))
@@ -151,7 +155,8 @@ else ifeq (1-mingw,$(HOST.cross)-$(HOST.system))
         --pkg-config-flags="--static"
     FFMPEG.GCC.args.extra += -fno-common
 else ifeq (darwin,$(HOST.system))
-    FFMPEG.CONFIGURE.extra += --extra-libs="-lc++"
+    FFMPEG.CONFIGURE.extra += --extra-libs="-lstdc++"
+    FFMPEG.CONFIGURE.extra += --extra-cxxflags="-D_GLIBCXX_USE_CXX11_ABI=0"
 else
     FFMPEG.CONFIGURE.extra += --extra-libs="-lm -lstdc++"
 endif