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Each source compilation generates a dependencies file. These dependencies files are consolidated in one file per target. This consolidation is done as part of command 'cmake -E cmake_depends` launched before evaluation of makefile dependency graph. The consolidation uses the same approach as `CMake` dependencies management. Fixes: #21321
20 lines
591 B
CMake
20 lines
591 B
CMake
include(Compiler/GNU)
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__compiler_gnu(OBJCXX)
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if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
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AND CMAKE_GENERATOR MATCHES "Makefiles|WMake"
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AND CMAKE_DEPFILE_FLAGS_OBJCXX)
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# dependencies are computed by the compiler itself
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set(CMAKE_OBJCXX_DEPFILE_FORMAT gcc)
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set(CMAKE_OBJCXX_DEPENDS_USE_COMPILER TRUE)
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endif()
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if(NOT CMAKE_OBJCXX_COMPILER_VERSION VERSION_LESS 4.2)
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set(CMAKE_OBJCXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
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endif()
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if(NOT CMAKE_OBJCXX_LINK_FLAGS)
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set(CMAKE_OBCXX_LINK_FLAGS "-lstdc++")
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endif()
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