From b4d0596f6ccf21e574cce0e638e76e3927c86187 Mon Sep 17 00:00:00 2001
From: Matthias Hochsteger <matthias.hochsteger@tuwien.ac.at>
Date: Thu, 19 Nov 2015 14:24:36 +0100
Subject: [PATCH] ccache option

---
 CMakeLists.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 982817fa..8859ff9e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,6 +24,17 @@ option( USE_JPEG    "enable snapshots using library libjpeg" OFF )
 option( USE_MPEG    "enable video recording with FFmpeg, uses libavcodec" OFF )
 option( INTEL_MIC        "cross compile for intel xeon phi")
 option( INSTALL_PROFILES "install environment variable settings to /etc/profile.d" OFF )
+option( USE_CCACHE       "use ccache")
+
+
+#######################################################################
+if(USE_CCACHE)
+  find_program(CCACHE_FOUND ccache)
+  if(CCACHE_FOUND)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+  endif(CCACHE_FOUND)
+endif(USE_CCACHE)
 
 #######################################################################
 if(USE_NATIVE_ARCH)