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https://github.com/OPM/opm-simulators.git
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52a36f77fa
Clang aims to be compatible with GCC when it comes to command-line parameters. Where we enable functionality based on the presence of a GCC-compiler, we can use the same functionality with Clang. This patch introduces a new variable CXX_COMPAT_GCC which is true if the compiler handles the same options as GCC, and this variable is subsequently used in tests instead of CMAKE_COMPILER_IS_GNUCXX (which remains if we need to test if we really have GCC, e.g. for version)
63 lines
2.4 KiB
CMake
63 lines
2.4 KiB
CMake
# - Default settings for the build
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include (UseCompVer)
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is_compiler_gcc_compatible ()
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include(TestCXXAcceptsFlag)
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macro (opm_defaults opm)
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# if we are installing a development version (default when checking out of
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# VCS), then remember which directories were used when configuring. package
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# distribution should disable this option.
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option (USE_RUNPATH "Embed original dependency paths in installed library" ON)
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if (USE_RUNPATH)
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if (CXX_COMPAT_GCC)
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check_cxx_accepts_flag ("-Wl,--enable-new-dtags" HAVE_RUNPATH)
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if (HAVE_RUNPATH)
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list (APPEND ${opm}_LINKER_FLAGS "-Wl,--enable-new-dtags")
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endif (HAVE_RUNPATH)
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endif ()
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# set this to avoid CMake stripping it off again
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set (CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
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endif (USE_RUNPATH)
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# build release by default
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if (NOT CMAKE_CONFIGURATION_TYPES AND NOT CMAKE_BUILD_TYPE)
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set (CMAKE_BUILD_TYPE "Release")
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endif (NOT CMAKE_CONFIGURATION_TYPES AND NOT CMAKE_BUILD_TYPE)
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# default to building a static library, but let user override
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if (DEFINED BUILD_SHARED_LIBS)
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if (BUILD_SHARED_LIBS)
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set (${opm}_LIBRARY_TYPE SHARED)
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else (BUILD_SHARED_LIBS)
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set (${opm}_LIBRARY_TYPE STATIC)
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endif (BUILD_SHARED_LIBS)
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else (DEFINED BUILD_SHARED_LIBS)
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set (${opm}_LIBRARY_TYPE STATIC)
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endif (DEFINED BUILD_SHARED_LIBS)
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# precompile standard headers to speed up compilation
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# unfortunately, this functionality is buggy and tends to segfault at
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# least up to version 4.7.2, so it should be disabled by default there
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set (_precomp_def OFF)
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option (PRECOMPILE_HEADERS "Precompile common headers for speed." ${_precomp_def})
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mark_as_advanced (PRECOMPILE_HEADERS)
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if (NOT PRECOMPILE_HEADERS)
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message (STATUS "Precompiled headers: disabled")
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endif(NOT PRECOMPILE_HEADERS)
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# Use of OpenMP is considered experimental
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set (USE_OPENMP_DEFAULT OFF)
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# if we are on a system where CMake 2.6 is the default (Hi RHEL 6!),
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# the configuration files for Boost will trip up the library paths
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# (look for /usr/lib64/lib64/ in the log) when used with FindBoost
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# module bundled with CMake 2.8. this can be circumvented by turning
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# off config mode probing if we have not explicitly specified a
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# directory to look for it. for more details, see
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# <http://stackoverflow.com/questions/9948375/cmake-find-package-succeeds-but-returns-wrong-path>
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if (NOT BOOST_ROOT)
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set (Boost_NO_BOOST_CMAKE ON)
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endif (NOT BOOST_ROOT)
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endmacro (opm_defaults opm)
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