diff options
| author | Alexandru Croitor <alexandru.croitor@qt.io> | 2020-04-06 15:52:48 +0200 |
|---|---|---|
| committer | Alexandru Croitor <alexandru.croitor@qt.io> | 2020-04-07 13:04:06 +0200 |
| commit | 23be07c2d026ef92e7a826c6dbde23fd9d651321 (patch) | |
| tree | d124cf25da6ea6ef5089a79c47d60d16c57c13dd /cmake | |
| parent | c356380154f170bed7c5947d58c9b3c92eee0121 (diff) | |
CMake: Autodetect Objective-C support only on macOS
On Android, check_language() reports that the languages are supported,
but enable_language fails afterwards.
On Linux it causes issues with the PCH. The PCH file might contain
a Clang pragma, even though the C++ compiler is GCC. Presumably due
to finding a Clang Objective-C compiler.
Change-Id: I1b4c54459772c089e7f6350872c87af52ad72a37
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/QtBuildInternals/QtBuildInternalsConfig.cmake | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake b/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake index 3265fea7b2..5648326ca2 100644 --- a/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake +++ b/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake @@ -68,7 +68,12 @@ endmacro() macro(qt_enable_cmake_languages) include(CheckLanguage) set(__qt_required_language_list C CXX) - set(__qt_optional_language_list OBJC OBJCXX) + set(__qt_optional_language_list ) + + # https://gitlab.kitware.com/cmake/cmake/-/issues/20545 + if(APPLE) + list(APPEND __qt_optional_language_list OBJC OBJCXX) + endif() foreach(__qt_lang ${__qt_required_language_list}) enable_language(${__qt_lang}) |