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CMAKE: Add CCACHE support

This commit is contained in:
mazmazz 2020-06-07 20:41:43 -04:00
parent c63ead5abb
commit aef9a1b522
4 changed files with 44 additions and 0 deletions
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17
CMakeLists.txt
View File

@ -1,4 +1,17 @@
cmake_minimum_required(VERSION 3.0)
# Enable CCache early
set(SRB2_USE_CCACHE OFF CACHE BOOL "Use CCache")
if (${SRB2_USE_CCACHE})
find_program(CCACHE_PROGRAM ccache)
if(CCACHE_PROGRAM)
message(STATUS "Found CCache: ${CCACHE_PROGRAM}")
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
else()
message(WARNING "You have specified to use CCACHE but it was not found. Object files will not be cached.")
endif()
endif()
# DO NOT CHANGE THIS SRB2 STRING! Some variable names depend on this string.
# Version change is fine.
project(SRB2
@ -9,6 +22,10 @@ if(${PROJECT_SOURCE_DIR} MATCHES ${PROJECT_BINARY_DIR})
message(FATAL_ERROR "In-source builds will bring you a world of pain. Please make a separate directory to invoke CMake from.")
endif()
if ((${SRB2_USE_CCACHE}) AND (${CMAKE_C_COMPILER} MATCHES "clang"))
message(WARNING "Using clang and CCache: You may want to set environment variable CCACHE_CPP2=yes to prevent include errors during compile.")
endif()
# Set up CMAKE path
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")

3
launch-c.in Normal file
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@ -0,0 +1,3 @@
#!/bin/sh
export CCACHE_CPP2=true
exec "${RULE_LAUNCH_COMPILE}" "${CMAKE_C_COMPILER}" "$@"

3
launch-cxx.in Normal file
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@ -0,0 +1,3 @@
#!/bin/sh
export CCACHE_CPP2=true
exec "${RULE_LAUNCH_COMPILE}" "${CMAKE_C_COMPILER}" "$@"

21
src/CMakeLists.txt
View File

@ -523,6 +523,27 @@ endif()
# Targets
# If using CCACHE, then force it.
# https://github.com/Cockatrice/Cockatrice/pull/3052/files
if (${CMAKE_SYSTEM} MATCHES "Darwin")
get_property(RULE_LAUNCH_COMPILE GLOBAL PROPERTY RULE_LAUNCH_COMPILE)
if(RULE_LAUNCH_COMPILE)
MESSAGE(STATUS "Force enabling CCache usage under macOS")
# Set up wrapper scripts
configure_file(${CMAKE_MODULE_PATH}/launch-c.in launch-c)
configure_file(${CMAKE_MODULE_PATH}/launch-cxx.in launch-cxx)
execute_process(COMMAND chmod a+rx
"${CMAKE_BINARY_DIR}/launch-c"
"${CMAKE_BINARY_DIR}/launch-cxx")
# Set Xcode project attributes to route compilation through our scripts
set(CMAKE_XCODE_ATTRIBUTE_CC "${CMAKE_BINARY_DIR}/launch-c")
set(CMAKE_XCODE_ATTRIBUTE_CXX "${CMAKE_BINARY_DIR}/launch-cxx")
set(CMAKE_XCODE_ATTRIBUTE_LD "${CMAKE_BINARY_DIR}/launch-c")
set(CMAKE_XCODE_ATTRIBUTE_LDPLUSPLUS "${CMAKE_BINARY_DIR}/launch-cxx")
endif()
endif()
# Compatibility flag with later versions of GCC
# We should really fix our code to not need this
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")