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| author | Cory Fields <foss@atlastechnologiesinc.com> | 2012-10-19 12:52:34 -0700 |
|---|---|---|
| committer | Cory Fields <foss@atlastechnologiesinc.com> | 2012-10-19 12:52:34 -0700 |
| commit | acae1706a98e9cc36a777e1b32bab0b938173ddb (patch) | |
| tree | c770f8a85fb2c15fff1c1242fccb0a578ae01a46 /configure.in | |
| parent | 3d6cc48bd796858d46b455f9d28ef4aaddb7bcd5 (diff) | |
| parent | c3adf6738cb94764d0fbccdd3c08b20788a5218c (diff) | |
Merge pull request #1626 from theuni/intrinsics-check
build: quit guessing about intrinsics, check specifics
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 4983a45997..6bfb034b1e 100644 --- a/configure.in +++ b/configure.in @@ -811,6 +811,37 @@ AC_CHECK_FUNCS([atexit dup2 fdatasync floor fs_stat_dev ftime ftruncate getcwd g AC_CHECK_SIZEOF([int]) AC_CHECK_SIZEOF([size_t]) +# Check for intrinsics +AC_MSG_CHECKING([for __sync_add_and_fetch(temp, 1)]) +AC_TRY_COMPILE([],[long* temp=0; __sync_add_and_fetch(temp, 1);], + [have_builtin_sync_add_and_fetch=yes], + [have_builtin_sync_add_and_fetch=no]) +AC_MSG_RESULT($have_builtin_sync_add_and_fetch) +if test "x$have_builtin_sync_add_and_fetch" = "xyes"; then + AC_DEFINE(HAS_BUILTIN_SYNC_ADD_AND_FETCH, 1, + [Define to 1 if your compiler supports the __sync_add_and_fetch() intrinsic.]) +fi + +AC_MSG_CHECKING([for __sync_sub_and_fetch(temp, 1)]) +AC_TRY_COMPILE([],[long* temp=0; __sync_sub_and_fetch(temp, 1);], + [have_builtin_sync_sub_and_fetch=yes], + [have_builtin_sync_sub_and_fetch=no]) +AC_MSG_RESULT($have_builtin_sync_sub_and_fetch) +if test "x$have_builtin_sync_sub_and_fetch" = "xyes"; then + AC_DEFINE(HAS_BUILTIN_SYNC_SUB_AND_FETCH, 1, + [Define to 1 if your compiler supports the __sync_sub_and_fetch() intrinsic.]) +fi + +AC_MSG_CHECKING([for __sync_val_compare_and_swap(temp, 1, 1)]) +AC_TRY_COMPILE([],[long *temp = 0; __sync_val_compare_and_swap(temp, 1, 1);], + [have_builtin_sync_val_compare_and_swap=yes], + [have_builtin_sync_val_compare_and_swap=no]) +AC_MSG_RESULT($have_builtin_sync_val_compare_and_swap) +if test "x$have_builtin_sync_val_compare_and_swap" = "xyes"; then + AC_DEFINE(HAS_BUILTIN_SYNC_VAL_COMPARE_AND_SWAP, 1, + [Define to 1 if your compiler supports the __sync_val_compare_and_swap() intrinsic.]) +fi + # Add top source directory for all builds so we can use config.h INCLUDES="$INCLUDES -I\$(abs_top_srcdir)" |