From 4a7b85a96706f3743a1a1d44bb404705d0dc91c6 Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Thu, 28 Jan 2016 23:47:11 -0800
Subject: [PATCH] cmake: fix builtin detection w/-Werror

and other warnings enabled (-Wunused-value)

Change-Id: Ie3605628b4cbfb5bfd1e847cc504cb96f2825388
---
 CMakeLists.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 643a5bb5..ab41f5fa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ endif()
 include(CheckCSourceCompiles)
 check_c_source_compiles("
     int main(void) {
-      __builtin_bswap16(0);
+      (void)__builtin_bswap16(0);
       return 0;
     }
   "
@@ -32,7 +32,7 @@ check_c_source_compiles("
 )
 check_c_source_compiles("
     int main(void) {
-      __builtin_bswap32(0);
+      (void)__builtin_bswap32(0);
       return 0;
     }
   "
@@ -40,7 +40,7 @@ check_c_source_compiles("
 )
 check_c_source_compiles("
     int main(void) {
-      __builtin_bswap64(0);
+      (void)__builtin_bswap64(0);
       return 0;
     }
   "