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-rw-r--r--old-configure.in10
1 files changed, 7 insertions, 3 deletions
diff --git a/old-configure.in b/old-configure.in
index 6cf0afdb8..96bb934e1 100644
--- a/old-configure.in
+++ b/old-configure.in
@@ -3542,11 +3542,15 @@ dnl = FFmpeg's ffvpx configuration
dnl ========================================================
MOZ_FFVPX=
-case "$CPU_ARCH" in
- x86)
+
+dnl Build ffvpx on 32-bit Windows and all supported 64-bit platforms.
+dnl 32-bit *nix has performance issues due to not supporting assembly decoder.
+
+case "$OS_ARCH:$CPU_ARCH" in
+ WINNT:x86)
MOZ_FFVPX=1
;;
- x86_64)
+ *:x86_64)
MOZ_FFVPX=1
;;
esac