Unable to test on win32 at the moment, please give this a try. Feedback welcome.
Avoids crashes due to unaligned ops when built with mingw.
---
src/libFLAC/include/private/cpu.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/libFLAC/include/private/cpu.h
b/src/libFLAC/include/private/cpu.h
index 8927897..bd40012 100644
--- a/src/libFLAC/include/private/cpu.h
+++ b/src/libFLAC/include/private/cpu.h
@@ -72,8 +72,13 @@
#define FLAC__FMA_SUPPORTED 1
#endif
#elif defined __GNUC__
+ #ifdef __MINGW32__
+ #define FLAC__STACK_ALIGN __attribute__((force_align_arg_pointer))
+ #else
+ #define FLAC__STACK_ALIGN
+ #endif /* SSE stack alignment fixups */
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* since GCC
4.9 -msse.. compiler options aren't necessary */
- #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
+ #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
FLAC__STACK_ALIGN
#define FLAC__SSE_SUPPORTED 1
#define FLAC__SSE2_SUPPORTED 1
#define FLAC__SSSE3_SUPPORTED 1
@@ -82,7 +87,7 @@
#define FLAC__AVX2_SUPPORTED 1
#define FLAC__FMA_SUPPORTED 1
#else /* for GCC older than 4.9 */
- #define FLAC__SSE_TARGET(x)
+ #define FLAC__SSE_TARGET(x) FLAC__STACK_ALIGN
#ifdef __SSE__
#define FLAC__SSE_SUPPORTED 1
#endif
--
2.1.0
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