1 files changed, 2 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 139a5a5088..f04dd86097 100755
--- a/configure.in
+++ b/configure.in
@@ -2304,6 +2304,8 @@ XB_CONFIG_MODULE([lib/ffmpeg], [
     sed -ie "s# -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 # #" config.mak
   else
     CFLAGS="" \
+    CPPFLAGS="" \
+    CXXFLAGS="" \
     LDFLAGS="$(echo "$LDFLAGS" | sed "s/-Wl,-Bsymbolic-functions//g")" \
     ./configure \
       --extra-cflags="$PASSED_CFLAGS $FFMPEG_EXTRACFLAGS" \