[FFmpeg-devel] [PATCH] configure: enable runtime cpu detect by default.

Michael Niedermayer michaelni at gmx.at
Fri Sep 21 18:15:39 CEST 2012

with the exception of libpostproc runtime_cpudetect = no is not
supported thus having no as default really is quite odd, it results in
a libpostproc where HAVE_MMX* have very different meaning from the
rest of ffmpeg and it breaks any x86 cpu that doesnt support mmx2
because mmx2 is hardcoded as a result

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
 configure |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index c001c5f..b79d598 100755
--- a/configure
+++ b/configure
@@ -95,7 +95,7 @@ Configuration options:
   --disable-static         do not build static libraries [no]
   --enable-shared          build shared libraries [no]
   --enable-small           optimize for size instead of speed
-  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
+  --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
   --enable-gray            enable full grayscale support (slower color)
   --disable-swscale-alpha  disable alpha channel support in swscale
@@ -2060,6 +2060,7 @@ enable debug
 enable doc
 enable network
 enable optimizations
+enable runtime_cpudetect
 enable safe_bitstream_reader
 enable static
 enable swscale_alpha

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