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In commit96d9b94a98(Emscripten: Add platform modules, 2025-05-16, v4.2.0-rc1~607^2~3) this flag was added as part of an attempt to support shared libraries without requiring projects to set much themselves. That attempt was reverted by commitd361bf365e(Emscripten: Drop hard-coded -sMAIN_MODULE and -sSIDE_MODULE flags, 2025-09-18, v4.2.0-rc1~146^2). Also avoid hard-coding `-fPIC`. `POSITION_INDEPENDENT_CODE` is already enabled for shared library targets. Projects can enable it themselves where `-fPIC` is needed outside of shared libraries. Fixes: #27424 Issue: #27240
20 lines
857 B
CMake
20 lines
857 B
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file LICENSE.rst or https://cmake.org/licensing for details.
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include_guard()
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macro(__emscripten_clang lang)
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set(CMAKE_SHARED_LIBRARY_SONAME_${lang}_FLAG "-Wl,-soname,")
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# FIXME(#27240): We do not add -sMAIN_MODULE to CMAKE_${lang}_LINK_EXECUTABLE
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# because it is not always needed, and can break things if added unnecessarily.
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# We also do not add -sMAIN_MODULE to CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS
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# to preserve legacy behavior in which projects added it as needed.
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# In the future we may add both flags with suitable controls.
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set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "")
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_LIBRARIES 1)
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_OBJECTS 1)
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_INCLUDES 1)
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endmacro()
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