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-rw-r--r--config/c-compiler.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/config/c-compiler.m4 b/config/c-compiler.m4
index 5db02b2ab75..3268a780bb0 100644
--- a/config/c-compiler.m4
+++ b/config/c-compiler.m4
@@ -137,7 +137,7 @@ if test x"$pgac_cv__128bit_int" = xyes ; then
AC_CACHE_CHECK([for __int128 alignment bug], [pgac_cv__128bit_int_bug],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([
/* This must match the corresponding code in c.h: */
-#if defined(__GNUC__) || defined(__SUNPRO_C) || defined(__IBMC__)
+#if defined(__GNUC__) || defined(__SUNPRO_C)
#define pg_attribute_aligned(a) __attribute__((aligned(a)))
#elif defined(_MSC_VER)
#define pg_attribute_aligned(a) __declspec(align(a))