From fd87b3e8d3c9f45448f93b22eb7e12781f58f57f Mon Sep 17 00:00:00 2001
From: Rob Crittenden <rcritten@redhat.com>
Date: Jan 19 2018 19:49:04 +0000
Subject: Add -Werror=implicit-function-declaration to CFLAGS to identify

missing includes (causes compilation to fail).

---

diff --git a/configure.ac b/configure.ac
index 4d38296..f44d789 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,9 @@ AC_CHECK_HEADERS( \
 unistd.h
 )
 
+dnl error on missing includes
+CFLAGS+=" -Werror=implicit-function-declaration"
+
 # Check for typedefs, structures, and compiler characteristics.
 AC_C_CONST