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meson.build: Disable OpenMP on MSVC builds

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The implementation of OpenMP is not compliant for our uses, so disable
it for now by just not checking for it on MSVC builds, as we implicitly
add an /openmp switch to the build, which will cause linking the tests
programs to fail, as the OpenMP implementation is not enough.
This commit is contained in:
Chun-wei Fan
2019-07-24 13:36:12 +08:00
parent f251c12f8a
commit e9db26898b
1 changed files with 15 additions and 8 deletions
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23
meson.build
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@@ -365,14 +365,21 @@ if get_option('gnuplot')
config.set('PIXMAN_GNUPLOT', 1)
endif
dep_openmp = dependency('openmp', required : get_option('openmp'))
if dep_openmp.found()
config.set10('USE_OPENMP', true)
elif meson.version().version_compare('<0.51.0')
# In versions of meson before 0.51 the openmp dependency can still
# inject arguments in the the auto case when it is not found, the
# detection does work correctly in that case however, so we just
# replace dep_openmp with null_dep to work around this.
if cc.get_id() != 'msvc'
dep_openmp = dependency('openmp', required : get_option('openmp'))
if dep_openmp.found()
config.set10('USE_OPENMP', true)
elif meson.version().version_compare('<0.51.0')
# In versions of meson before 0.51 the openmp dependency can still
# inject arguments in the the auto case when it is not found, the
# detection does work correctly in that case however, so we just
# replace dep_openmp with null_dep to work around this.
dep_openmp = null_dep
endif
else
# the MSVC implementation of openmp is not compliant enough for our
# uses here, so we disable it here.
# Please see: https://stackoverflow.com/questions/12560243/using-threadprivate-directive-in-visual-studio
dep_openmp = null_dep
endif