From 49c98bbc34902d2f5d66518341cfd41ac2d7bef3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Bylica?= <chfast@gmail.com>
Date: Wed, 20 Sep 2017 16:39:41 +0200
Subject: CMake: Better ccache configuration

EthCcache module taken from cpp-ethereum.
---
 cmake/EthCcache.cmake           | 15 +++++++++++++++
 cmake/EthCompilerSettings.cmake |  8 --------
 2 files changed, 15 insertions(+), 8 deletions(-)
 create mode 100644 cmake/EthCcache.cmake

(limited to 'cmake')

diff --git a/cmake/EthCcache.cmake b/cmake/EthCcache.cmake
new file mode 100644
index 00000000..9410cbcd
--- /dev/null
+++ b/cmake/EthCcache.cmake
@@ -0,0 +1,15 @@
+# Setup ccache.
+#
+# The ccache is auto-enabled if the tool is found.
+# To disable set -DCCACHE=OFF option.
+if(NOT DEFINED CMAKE_CXX_COMPILER_LAUNCHER)
+  find_program(CCACHE ccache DOC "ccache tool path; set to OFF to disable")
+  if(CCACHE)
+    set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE})
+    if(COMMAND cotire)
+      # Change ccache config to meet cotire requirements.
+      set(ENV{CCACHE_SLOPPINESS} pch_defines,time_macros)
+    endif()
+    message(STATUS "[ccache] Enabled: ${CCACHE}")
+  endif()
+endif()
diff --git a/cmake/EthCompilerSettings.cmake b/cmake/EthCompilerSettings.cmake
index 117dd319..1a00ae70 100644
--- a/cmake/EthCompilerSettings.cmake
+++ b/cmake/EthCompilerSettings.cmake
@@ -14,14 +14,6 @@
 #
 # These settings then end up spanning all POSIX platforms (Linux, OS X, BSD, etc)
 
-# Use ccache if available
-find_program(CCACHE_FOUND ccache)
-if(CCACHE_FOUND)
-	set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
-	set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
-	message("Using ccache")
-endif(CCACHE_FOUND)
-
 include(CheckCXXCompilerFlag)
 
 check_cxx_compiler_flag(-fstack-protector-strong have_stack_protector_strong)
-- 
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