From 0fabde0515e180c53961c27346dd7a79cffa4c1f Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Thu, 11 Aug 2016 11:49:36 +0200
Subject: [PATCH] configure.ac: Allow user to disable gflags

Under some circumstances like cross-compilation, the user might not want
to enable support for gflags.

This patch allows support for --without-gflags

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
 configure.ac | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 7b4d21e7ae8a..eba5e5cda1ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -136,7 +136,11 @@ AC_ARG_WITH(gflags, AS_HELP_STRING[--with-gflags=GFLAGS_DIR],
   CFLAGS="$CFLAGS $GFLAGS_CFLAGS"
   LIBS="$LIBS $GFLAGS_LIBS"
 )
-AC_CHECK_LIB(gflags, main, ac_cv_have_libgflags=1, ac_cv_have_libgflags=0)
+if test x"$with_gflags" = x"no"; then
+  ac_cv_have_libgflags=0
+else
+  AC_CHECK_LIB(gflags, main, ac_cv_have_libgflags=1, ac_cv_have_libgflags=0)
+fi
 if test x"$ac_cv_have_libgflags" = x"1"; then
   AC_DEFINE(HAVE_LIB_GFLAGS, 1, [define if you have google gflags library])
   if test x"$GFLAGS_LIBS" = x""; then
-- 
2.8.1