From 84c56130d2cdc4ea378e5d9e33d68cf983467fcc Mon Sep 17 00:00:00 2001
From: Omer Katz <omer.drow@gmail.com>
Date: Thu, 31 Dec 2015 11:56:39 +0200
Subject: [PATCH] Adjust CMakeLists.txt files to use ccache when it's
 available.

---
 CMakeLists.txt               | 6 ++++++
 test/perftest/CMakeLists.txt | 6 ++++++
 test/unittest/CMakeLists.txt | 6 ++++++
 3 files changed, 18 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 51ee620..89a7634 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,12 @@ if(RAPIDJSON_HAS_STDSTRING)
     add_definitions(-DRAPIDJSON_HAS_STDSTRING)
 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 ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -Wall -Wextra -Werror")
 elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
diff --git a/test/perftest/CMakeLists.txt b/test/perftest/CMakeLists.txt
index 4121bf9..f698382 100644
--- a/test/perftest/CMakeLists.txt
+++ b/test/perftest/CMakeLists.txt
@@ -9,6 +9,12 @@ target_link_libraries(perftest ${TEST_LIBRARIES})
 
 add_dependencies(tests perftest)
 
+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(NOT (CMAKE_BUILD_TYPE STREQUAL "Debug"))
 add_test(NAME perftest
     COMMAND ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/perftest
diff --git a/test/unittest/CMakeLists.txt b/test/unittest/CMakeLists.txt
index fd2eb4d..ee5ff0c 100644
--- a/test/unittest/CMakeLists.txt
+++ b/test/unittest/CMakeLists.txt
@@ -18,6 +18,12 @@ set(UNITTEST_SOURCES
     valuetest.cpp
     writertest.cpp)
 
+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 ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wall -Wextra -Weffc++ -Wswitch-default -Wfloat-equal")
 elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")