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WCDH: Ignore language standard meta-features

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The `{c,cxx}_std_*` features are meant for use with
`target_compile_features` but do not make sense for use with
WriteCompilerDetectionHeader.  Filter them out of any requested list.
This commit is contained in:
Brad King 2016-10-26 16:26:22 -04:00
parent b0996a3fa2
commit a34b98a834
1 changed files with 6 additions and 1 deletions
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7
Modules/WriteCompilerDetectionHeader.cmake
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@ -76,6 +76,7 @@
# Available features in this version of CMake are listed in the # Available features in this version of CMake are listed in the
# :prop_gbl:`CMAKE_C_KNOWN_FEATURES` and # :prop_gbl:`CMAKE_C_KNOWN_FEATURES` and
# :prop_gbl:`CMAKE_CXX_KNOWN_FEATURES` global properties. # :prop_gbl:`CMAKE_CXX_KNOWN_FEATURES` global properties.
# The ``{c,cxx}_std_*`` meta-features are ignored if requested.
# #
# See the :manual:`cmake-compile-features(7)` manual for information on # See the :manual:`cmake-compile-features(7)` manual for information on
# compile features. # compile features.
@ -358,7 +359,11 @@ function(write_compiler_detection_header
endif() endif()
foreach(feature ${_WCD_FEATURES}) foreach(feature ${_WCD_FEATURES})
if (feature MATCHES "^cxx_") if (feature MATCHES "^c_std_")
# ignored
elseif (feature MATCHES "^cxx_std_")
# ignored
elseif (feature MATCHES "^cxx_")
list(APPEND _langs CXX) list(APPEND _langs CXX)
list(APPEND CXX_features ${feature}) list(APPEND CXX_features ${feature})
elseif (feature MATCHES "^c_") elseif (feature MATCHES "^c_")