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| author | Jason Evans <jasone@canonware.com> | 2019-02-22 11:10:11 -0800 |
|---|---|---|
| committer | Jason Evans <jasone@canonware.com> | 2019-02-22 14:22:16 -0800 |
| commit | 775fe302a75c4770edd9708e7348e626c96dfe58 (patch) | |
| tree | 863cbb5087b82f6407b98a8cd02322bd42fa9143 /configure.ac | |
| parent | cbdb1807cea6828d0f61e1a0516613efc3e7189e (diff) | |
Remove JE_FORCE_SYNC_COMPARE_AND_SWAP_[48].
These macros have been unused since
d4ac7582f32f506d5203bea2f0115076202add38 (Introduce a backport of C11
atomics).
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/configure.ac b/configure.ac index 9b00bbfc..4dafed58 100644 --- a/configure.ac +++ b/configure.ac @@ -2006,40 +2006,6 @@ esac fi dnl ============================================================================ -dnl Check whether __sync_{add,sub}_and_fetch() are available despite -dnl __GCC_HAVE_SYNC_COMPARE_AND_SWAP_n macros being undefined. - -AC_DEFUN([JE_SYNC_COMPARE_AND_SWAP_CHECK],[ - AC_CACHE_CHECK([whether to force $1-bit __sync_{add,sub}_and_fetch()], - [je_cv_sync_compare_and_swap_$2], - [AC_LINK_IFELSE([AC_LANG_PROGRAM([ - #include <stdint.h> - ], - [ - #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_$2 - { - uint$1_t x$1 = 0; - __sync_add_and_fetch(&x$1, 42); - __sync_sub_and_fetch(&x$1, 1); - } - #else - #error __GCC_HAVE_SYNC_COMPARE_AND_SWAP_$2 is defined, no need to force - #endif - ])], - [je_cv_sync_compare_and_swap_$2=yes], - [je_cv_sync_compare_and_swap_$2=no])]) - - if test "x${je_cv_sync_compare_and_swap_$2}" = "xyes" ; then - AC_DEFINE([JE_FORCE_SYNC_COMPARE_AND_SWAP_$2], [ ]) - fi -]) - -if test "x${je_cv_atomic9}" != "xyes" -a "x${je_cv_osatomic}" != "xyes" ; then - JE_SYNC_COMPARE_AND_SWAP_CHECK(32, 4) - JE_SYNC_COMPARE_AND_SWAP_CHECK(64, 8) -fi - -dnl ============================================================================ dnl Check for __builtin_clz() and __builtin_clzl(). AC_CACHE_CHECK([for __builtin_clz], |