CMakeLists.txt: Do not unconditionally use ccache

This causes build failures in Gentoo because we don't allow access to ccache files if ccache is not enabled for build.

Fix this by adding a WITH_CCACHE cmake option and change behavior so that cmake fails if WITH_CCACHE is enabled but ccache program cannot be found.

Gentoo-bug: https://bugs.gentoo.org/704560
Signed-off-by: Lars Wendler <polynomial-c@gentoo.org>
This commit is contained in:
Lars Wendler 2020-01-07 17:44:08 -05:00 committed by Jonathan White
parent 8ded3bdba2
commit ae471bea14
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@ -27,13 +27,6 @@ string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
# Use the Compiler Cache (ccache) if it is installed
# (install with: sudo apt get ccache)
find_program (CCACHE_FOUND ccache)
if (CCACHE_FOUND)
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
endif (CCACHE_FOUND)
# Support Visual Studio Code
include(CMakeToolsHelpers OPTIONAL)
include(FeatureSummary)
@ -48,6 +41,7 @@ option(WITH_DEV_BUILD "Use only for development. Disables/warns about deprecated
option(WITH_ASAN "Enable address sanitizer checks (Linux / macOS only)" OFF)
option(WITH_COVERAGE "Use to build with coverage tests (GCC only)." OFF)
option(WITH_APP_BUNDLE "Enable Application Bundle for macOS" ON)
option(WITH_CCACHE "Use ccache for build" OFF)
set(WITH_XC_ALL OFF CACHE BOOL "Build in all available plugins")
@ -65,6 +59,17 @@ if(APPLE)
option(WITH_XC_TOUCHID "Include TouchID support for macOS." OFF)
endif()
if(WITH_CCACHE)
# Use the Compiler Cache (ccache) program
# (install with: sudo apt get ccache)
find_program (CCACHE_FOUND ccache)
if(CCACHE_FOUND)
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
else()
message(FATAL_ERROR "ccache requested but cannot be found.")
endif()
endif()
if(WITH_XC_ALL)
# Enable all options (except update check)
set(WITH_XC_AUTOTYPE ON)