From 68ecbff08346407e5865710e1fcb41019cb29992 Mon Sep 17 00:00:00 2001
From: Viktor Ashirov <vashirov@redhat.com>
Date: May 14 2018 14:07:44 +0000
Subject: Issue 49684 - AC_PROG_CC clobbers CFLAGS set by --enable-debug


Bug Description:
AC_PROG_CC macro sets CFLAGS/CXXFLAGS environment variable to ` -g -O2`
for GCC if CFLAGS/CXXFLAGS are not defined.

Fix Description:
Use an empty default for CFLAGS and CXXFLAGS instead.

https://pagure.io/389-ds-base/issue/49684

Reviewed by: mreynolds (Thanks!)

---

diff --git a/configure.ac b/configure.ac
index f747e7c..c66d5e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,9 @@ AC_CANONICAL_HOST
 AC_CONFIG_MACRO_DIRS([m4])
 
 # Checks for programs.
+: ${CXXFLAGS=""}
 AC_PROG_CXX
+: ${CFLAGS=""}
 AC_PROG_CC
 AM_PROG_CC_C_O
 AM_PROG_AS