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-rw-r--r--configure.ac5
1 files changed, 0 insertions, 5 deletions
diff --git a/configure.ac b/configure.ac
index 5bf096b3d0..216a97fb49 100644
--- a/configure.ac
+++ b/configure.ac
@@ -712,11 +712,6 @@ FP_GCC_VERSION
dnl ** See whether gcc supports -no-pie
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?])
-
FP_GCC_EXTRA_FLAGS
dnl ** look to see if we have a C compiler using an llvm back end.