CMakeLists: Use ccache if found

Dramatically speeds up builds when switching build flags. Change-Id: I661d18458db69f6663381c252b06b3ed96f3a5c6 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/33472Tested-by: Ben Clayton <bclayton@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>

CMakeLists: Use ccache if found
4901ffd5 · Ben Clayton · 2e5d5b46 · 4901ffd5
Commit 4901ffd5 authored Jun 27, 2019 by Ben Clayton
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CMakeLists.txt CMakeLists.txt +8 -0

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--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,14 @@ if ((CMAKE_GENERATOR MATCHES "Visual Studio") AND (CMAKE_GENERATOR_TOOLSET STREQ
                  "host compiler, pass -Thost=x64 on the CMake command line.")
 endif()

+# Use CCache if available
+find_program(CCACHE_FOUND ccache)
+if(CCACHE_FOUND)
+    message(STATUS "Using ccache")
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+endif(CCACHE_FOUND)
+
 ###########################################################
 # Options
 ###########################################################