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Fix precompile header usage 

Latest CMake will try to compile the given precompiled headers
as C files, due to enabling the C language in the project + also
having c files.

Make sure to wrap the precompiled headers in a CXX language only
generator expression.

For details, see https://gitlab.kitware.com/cmake/cmake/issues/19839

Change-Id: Ib3508ad920092455c300b1a566ba6152bab032db
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
bb10
Alexandru Croitor 2019-10-15 15:42:50 +02:00
parent c13bafec09
commit 4a7e7103e7
1 changed files with 1 additions and 1 deletions
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2
cmake/QtBuild.cmake
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@ -953,7 +953,7 @@ endfunction()
function(qt_update_precompiled_header target precompiled_header)
if (precompiled_header AND BUILD_WITH_PCH)
set_property(TARGET "${target}" APPEND PROPERTY "PRECOMPILE_HEADERS" "${precompiled_header}")
set_property(TARGET "${target}" APPEND PROPERTY "PRECOMPILE_HEADERS" "$<$<COMPILE_LANGUAGE:CXX>:${precompiled_header}>")
endif()
endfunction()