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Suppress "duplicate libraries" warning for Xcode 15

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A bug in Xcode 15 adds duplicate flags to the linker. In addition, the
`-warn_duplicate_libraries` is now enabled by default which may result
in several 'duplicate libraries warning', and build failure if
`-Wl,-fatal_warnings` is passed. By adding the newly introduced
flag, `-no_warn_duplicate_libraries`, to the linker we can suppress the
warnings, and possible fatal error caused by this bug.

Change-Id: I65e06ea039a6e98b02ed1f9112c622ecc6a142b5
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
This commit is contained in:
Amir Masoud Abdol 2023-10-16 11:24:38 +02:00
parent 2d59f2e8ca
commit 66b7cb2a88
1 changed files with 22 additions and 13 deletions
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15
cmake/QtInternalTargets.cmake
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@ -229,9 +229,8 @@ elseif(UIKIT)
target_compile_definitions(PlatformCommonInternal INTERFACE GLES_SILENCE_DEPRECATION) target_compile_definitions(PlatformCommonInternal INTERFACE GLES_SILENCE_DEPRECATION)
endif() endif()
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang" if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "14.0.0" if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "14.0.0")
)
# Xcode 14's Clang will emit objc_msgSend stubs by default, which ld # Xcode 14's Clang will emit objc_msgSend stubs by default, which ld
# from earlier Xcode versions will fail to understand when linking # from earlier Xcode versions will fail to understand when linking
# against static libraries with these stubs. Disable the stubs explicitly, # against static libraries with these stubs. Disable the stubs explicitly,
@ -242,6 +241,16 @@ if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang"
target_compile_options(PlatformCommonInternal INTERFACE target_compile_options(PlatformCommonInternal INTERFACE
"$<${is_static_and_objc}:-fno-objc-msgsend-selector-stubs>" "$<${is_static_and_objc}:-fno-objc-msgsend-selector-stubs>"
) )
endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "15.0.0")
# A bug in Xcode 15 adds duplicate flags to the linker. In addition, the
# `-warn_duplicate_libraries` is now enabled by default which may result
# in several 'duplicate libraries warning'.
# - https://gitlab.kitware.com/cmake/cmake/-/issues/25297 and
# - https://indiestack.com/2023/10/xcode-15-duplicate-library-linker-warnings/
target_link_options(PlatformCommonInternal INTERFACE
"LINKER:-no_warn_duplicate_libraries")
endif()
endif() endif()
if(MSVC) if(MSVC)