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95 lines
2.5 KiB
95 lines
2.5 KiB
# Try to find the GNU Multiple Precision Arithmetic Library (GMP)
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# See http://gmplib.org/
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if(${CMAKE_VERSION} VERSION_LESS "3.18.0")
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set(REQUIRED_FLAG "")
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else()
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set(REQUIRED_FLAG REQUIRED)
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endif()
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# On Windows, we must use the pre-compiled versions downloaded with libigl
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if(WIN32)
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set(NO_DEFAULT_FLAG NO_DEFAULT_PATH)
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else()
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set(NO_DEFAULT_FLAG "")
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endif()
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find_path(GMP_INCLUDES
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NAMES
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gmp.h
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PATHS
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ENV GMP_DIR
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${INCLUDE_INSTALL_DIR}
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PATH_SUFFIXES
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include
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${REQUIRED_FLAG}
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${NO_DEFAULT_FLAG}
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)
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find_library(GMP_LIBRARIES
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NAMES
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gmp
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libgmp-10
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PATHS
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ENV GMP_DIR
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${LIB_INSTALL_DIR}
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PATH_SUFFIXES
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lib
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${REQUIRED_FLAG}
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${NO_DEFAULT_FLAG}
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)
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set(GMP_EXTRA_VARS "")
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if(WIN32)
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# Find dll file and set IMPORTED_LOCATION to the .dll file
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find_file(GMP_RUNTIME_LIB
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NAMES
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gmp.dll
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libgmp-10.dll
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PATHS
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ENV GMP_DIR
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${LIB_INSTALL_DIR}
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PATH_SUFFIXES
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lib
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${REQUIRED_FLAG}
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${NO_DEFAULT_FLAG}
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)
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list(APPEND GMP_EXTRA_VARS GMP_RUNTIME_LIB)
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(GMP
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REQUIRED_VARS
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GMP_INCLUDES
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GMP_LIBRARIES
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${GMP_EXTRA_VARS}
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REASON_FAILURE_MESSAGE
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"GMP is not installed on your system. Either install GMP using your preferred package manager, or disable libigl modules that depend on GMP, such as CGAL. See LibiglOptions.cmake.sample for configuration options. Do not forget to delete your <build>/CMakeCache.txt for the changes to take effect."
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)
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mark_as_advanced(GMP_INCLUDES GMP_LIBRARIES)
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if(GMP_INCLUDES AND GMP_LIBRARIES AND NOT TARGET gmp::gmp)
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if(GMP_RUNTIME_LIB)
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add_library(gmp::gmp SHARED IMPORTED)
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else()
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add_library(gmp::gmp UNKNOWN IMPORTED)
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endif()
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# Set public header location and link language
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set_target_properties(gmp::gmp PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES "C"
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INTERFACE_INCLUDE_DIRECTORIES "${GMP_INCLUDES}"
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)
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# Set lib location. On Windows we specify both the .lib and the .dll paths
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if(GMP_RUNTIME_LIB)
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set_target_properties(gmp::gmp PROPERTIES
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IMPORTED_IMPLIB "${GMP_LIBRARIES}"
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IMPORTED_LOCATION "${GMP_RUNTIME_LIB}"
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)
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else()
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set_target_properties(gmp::gmp PROPERTIES
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IMPORTED_LOCATION "${GMP_LIBRARIES}"
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)
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endif()
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endif()
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