Check for sse2 math before using it.

diff --git a/lib/os.h b/lib/os.h
index e098926..e589a33 100644 (file)
--- a/lib/os.h
+++ b/lib/os.h
@@ -80,7 +80,7 @@ void *_alloca(size_t size);
 
 
 /* Special i386 GCC implementation */
-#if defined(__i386__) && defined(__GNUC__) && !defined(__BEOS__)
+#if defined(__i386__) && defined(__GNUC__) && !defined(__BEOS__) && !defined(__SSE2_MATH__)
 #  define VORBIS_FPU_CONTROL
 /* both GCC and MSVC are kinda stupid about rounding/casting to int.
    Because of encapsulation constraints (GCC can't see inside the asm
@@ -147,7 +147,7 @@ static __inline void vorbis_fpu_restore(vorbis_fpu_control fpu){
 
 /* Optimized code path for x86_64 builds. Uses SSE2 intrinsics. This can be
    done safely because all x86_64 CPUs supports SSE2. */
-#if (defined(_MSC_VER) && defined(_WIN64)) || (defined(__GNUC__) && defined (__x86_64__))
+#if (defined(_MSC_VER) && defined(_WIN64)) || (defined(__GNUC__) && defined (__SSE2_MATH__))
 #  define VORBIS_FPU_CONTROL
 
 typedef ogg_int16_t vorbis_fpu_control;