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-rw-r--r--configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 49257e53010..24372b6cee8 100644
--- a/configure.in
+++ b/configure.in
@@ -358,6 +358,7 @@ case $template in
esac
AC_PROG_CC([$pgac_cc_list])
+AC_PROG_CC_C99()
AC_PROG_CXX([$pgac_cxx_list])
# Check if it's Intel's compiler, which (usually) pretends to be gcc,