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cmake: Use job pool feature to limit concurrent jobs

Add two new options, WOWNERO_PARALLEL_COMPILE_JOBS and
WOWNERO_PARALLEL_LINK_JOBS to try and prevent running out of memory when
building everything.

Requires >= cmake 3.0.0, and the use of the Ninja generator.

Useful links:

* https://cmake.org/cmake/help/latest/prop_gbl/JOB_POOLS.html
* https://reviews.llvm.org/D6304
pull/314/head
Matt Smith 1 month ago
parent
commit
465b5d85e4
Signed by untrusted user: asymptotically <matt@offtopica.uk> GPG Key ID: D0EAC8943FB1B2C1
1 changed files with 15 additions and 0 deletions
  1. +15
    -0
      CMakeLists.txt

+ 15
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CMakeLists.txt View File

@ -55,6 +55,21 @@ else()
message(STATUS "ccache deselected")
endif()
# Job pool feature requires Ninja.
if (${CMAKE_VERSION} VERSION_GREATER "3.0.0")
set(WOWNERO_PARALLEL_COMPILE_JOBS "" CACHE STRING "The maximum number of concurrent compilation jobs.")
if (WOWNERO_PARALLEL_COMPILE_JOBS)
set_property(GLOBAL APPEND PROPERTY JOB_POOLS compile_job_pool=${WOWNERO_PARALLEL_COMPILE_JOBS})
set(CMAKE_JOB_POOL_COMPILE compile_job_pool)
endif ()
set(WOWNERO_PARALLEL_LINK_JOBS "" CACHE STRING "The maximum number of concurrent link jobs.")
if (WOWNERO_PARALLEL_LINK_JOBS)
set_property(GLOBAL APPEND PROPERTY JOB_POOLS link_job_pool=${WOWNERO_PARALLEL_LINK_JOBS})
set(CMAKE_JOB_POOL_LINK link_job_pool)
endif ()
endif()
enable_language(C ASM)
function (die msg)

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