diff options
| author | Matt Turner <mattst88@gmail.com> | 2013-07-30 13:22:29 -0700 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2013-09-04 23:48:52 -0700 |
| commit | 8ad63f90cd8392a40f115c56b16c54d45012070e (patch) | |
| tree | 12cc12ef061ecd89050f6f2a6c253ecb275af03e | |
| parent | 02906e57bd801e20b3094ca348fad563c6b5a922 (diff) | |
iwmmxt: Disallow if gcc version is < 4.8.
Later versions of gcc-4.7.x are capable of generating iwMMXt
instructions properly, but gcc-4.8 contains better support and other
fixes, including iwMMXt in conjunction with hardfp. The existing 4.5
requirement was based on attempts to have OLPC use a patched gcc to
build pixman. Let's just require gcc-4.8.
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 5b9512c..daf4062 100644 --- a/configure.ac +++ b/configure.ac @@ -631,8 +631,8 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #ifndef __IWMMXT__ #error "IWMMXT not enabled (with -march=iwmmxt)" #endif -#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)) -#error "Need GCC >= 4.5 for IWMMXT intrinsics" +#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)) +#error "Need GCC >= 4.8 for IWMMXT intrinsics" #endif #include <mmintrin.h> int main () { |