| # Support ccache for faster builds. |
| # |
| # By default ccache will be used if it is found in your path. |
| # |
| # You can use `BUILD_USING_CCACHE=off` to disable it's usage. |
| # You can use `BUILD_USING_CCACHE=off` to make sure ccache is used. |
| # |
| set(BUILD_USING_CCACHE "auto") |
| if(NOT "$ENV{BUILD_USING_CCACHE}" STREQUAL "") |
| set(BUILD_USING_CCACHE $ENV{BUILD_USING_CCACHE}) |
| endif() |
| find_program(CCACHE_PROGRAM ccache) |
| if (BUILD_USING_CCACHE STREQUAL "on") |
| if(NOT CCACHE_PROGRAM) |
| message(FATAL_ERROR "BUILD_USING_CCACHE set to on but ccache binary not found!") |
| endif() |
| endif() |
| if (NOT BUILD_USING_CCACHE STREQUAL "off") |
| if(CCACHE_PROGRAM) |
| set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}") |
| message(STATUS "Using ccache binary found @ ${CCACHE_PROGRAM}") |
| endif() |
| else() |
| if(CCACHE_PROGRAM) |
| message(STATUS "**Not** using ccache binary found @ ${CCACHE_PROGRAM} (as BUILD_USING_CCACHE is off)") |
| endif() |
| endif() |
