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-rw-r--r--configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index b923b0bb9cc..1ba58723b14 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1381,7 +1381,7 @@ else
WINDMC_FOR_BUILD="\$(WINDMC)"
fi
-AC_PROG_CC
+AC_PROG_CC_C99
AC_PROG_CXX
# We must set the default linker to the linker used by gcc for the correct