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Build: Remove -fpch-instantiate-templates detection, it is enabled by default since CMake 3.19

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(cherry picked from commit 55a19f15d0)
This commit is contained in:
Shauren
2025-05-02 22:59:45 +02:00
committed by Ovahlord
parent ed0afee8fb
commit c80e4ab279
1 changed files with 3 additions and 10 deletions
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13
cmake/compiler/clang/settings.cmake
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@@ -5,6 +5,9 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "AppleClang")
# apple doesnt like to do the sane thing which would be to use the same version numbering as regular clang
# version number pulled from https://en.wikipedia.org/wiki/Xcode#Toolchain_versions for row matching LLVM 11
set(CLANG_EXPECTED_VERSION 12.0.5)
# enable -fpch-instantiate-templates for AppleClang (by default it is active only for regular clang)
set(CMAKE_C_COMPILE_OPTIONS_INSTANTIATE_TEMPLATES_PCH -fpch-instantiate-templates)
set(CMAKE_CXX_COMPILE_OPTIONS_INSTANTIATE_TEMPLATES_PCH -fpch-instantiate-templates)
endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS CLANG_EXPECTED_VERSION)
@@ -160,13 +163,3 @@ if(BUILD_SHARED_LIBS)
message(STATUS "Clang: Disallow undefined symbols")
endif()
# speedup PCH builds by forcing template instantiations during PCH generation
set(CMAKE_REQUIRED_FLAGS "-fpch-instantiate-templates")
check_cxx_source_compiles("int main() { return 0; }" CLANG_HAS_PCH_INSTANTIATE_TEMPLATES)
unset(CMAKE_REQUIRED_FLAGS)
if(CLANG_HAS_PCH_INSTANTIATE_TEMPLATES)
target_compile_options(trinity-compile-option-interface
INTERFACE
-fpch-instantiate-templates)
endif()