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Merge branch 'improve-msvc-feature-checks' into release-3.9

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This commit is contained in:
Brad King 2017-06-08 09:23:05 -04:00
commit 43dae64597
1 changed files with 3 additions and 1 deletions
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4
Source/Checks/cm_cxx_features.cmake
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@ -14,8 +14,10 @@ function(cm_check_cxx_feature name)
CMAKE_FLAGS ${maybe_cxx_standard}
OUTPUT_VARIABLE OUTPUT
)
# Filter out MSBuild output that looks like a warning.
string(REGEX REPLACE " +0 Warning\\(s\\)" "" check_output "${OUTPUT}")
# If using the feature causes warnings, treat it as broken/unavailable.
if(OUTPUT MATCHES "[Ww]arning" AND NOT OUTPUT MATCHES "0 Warning")
if(check_output MATCHES "[Ww]arning")
set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_COMPILE" FORCE)
endif()
if(CMake_HAVE_CXX_${FEATURE})