diff options
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 5e6f7d8723..8d5900cc33 100644 --- a/configure.ac +++ b/configure.ac @@ -715,7 +715,9 @@ FP_GCC_SUPPORTS_NO_PIE dnl ** Used to determine how to compile ghc-prim's atomics.c, used by dnl unregisterised, Sparc, and PPC backends. FP_GCC_SUPPORTS__ATOMICS -AC_DEFINE([HAVE_C11_ATOMICS], [$CONF_GCC_SUPPORTS__ATOMICS], [Does GCC support __atomic primitives?]) +if test $CONF_GCC_SUPPORTS__ATOMICS = YES ; then + AC_DEFINE([HAVE_C11_ATOMICS], [1], [Does GCC support __atomic primitives?]) +fi FP_GCC_EXTRA_FLAGS |