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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 6c845c29..b39cc55e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,7 +20,7 @@ AC_CONFIG_SRCDIR(tcpdump.c)
AC_CANONICAL_HOST
AC_LBL_C_INIT_BEFORE_CC(V_INCLS)
-AC_PROG_CC
+AC_PROG_CC_C99
AC_LBL_C_INIT(V_CCOPT, V_INCLS)
AC_LBL_C_INLINE
AC_C___ATTRIBUTE__