Support ccache

http://stackoverflow.com/a/24305849/263998

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d459fd..2b3ab6e 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -104,6 +104,12 @@ elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
   # not yet ready for -Wsign-conversion
 endif()
 
+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)
+
 IF(JSONCPP_WITH_WARNING_AS_ERROR)
     UseCompilationWarningAsError()
 ENDIF()