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build: Add ccache option to CMake config

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This is totally optional, but lets people build this repo with
ccache to improve rebuild speeds.  It also can help a great deal
on ccache-enabled CI systems like Travis-CI.  We build fixed
revisions of glslang a lot on Travis, so this will be a big help
with CI machine loading.
This commit is contained in:
Karl Schultz 2018-07-06 12:12:09 -06:00
parent cd57b4ba0f
commit 23770b9aae
1 changed files with 8 additions and 0 deletions
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8
CMakeLists.txt
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@ -35,6 +35,14 @@ if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND WIN32)
set(CMAKE_INSTALL_PREFIX "install" CACHE STRING "..." FORCE) set(CMAKE_INSTALL_PREFIX "install" CACHE STRING "..." FORCE)
endif() endif()
option(USE_CCACHE "Use ccache" OFF)
if(USE_CCACHE)
find_program(CCACHE_FOUND ccache)
if(CCACHE_FOUND)
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
endif(CCACHE_FOUND)
endif()
project(glslang) project(glslang)
# make testing optional # make testing optional
include(CTest) include(CTest)