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33 lines
1008 B
33 lines
1008 B
add_library(MathFunctions mysqrt.cxx)
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# state that anybody linking to us needs to include the current source dir
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# to find MathFunctions.h, while we don't.
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target_include_directories(MathFunctions
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INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}
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)
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# does this system provide the log and exp functions?
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include(CheckSymbolExists)
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check_symbol_exists(log "math.h" HAVE_LOG)
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check_symbol_exists(exp "math.h" HAVE_EXP)
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if(NOT (HAVE_LOG AND HAVE_EXP))
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unset(HAVE_LOG CACHE)
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unset(HAVE_EXP CACHE)
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set(CMAKE_REQUIRED_LIBRARIES "m")
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check_symbol_exists(log "math.h" HAVE_LOG)
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check_symbol_exists(exp "math.h" HAVE_EXP)
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if(HAVE_LOG AND HAVE_EXP)
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target_link_libraries(MathFunctions PRIVATE m)
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endif()
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endif()
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# add compile definitions
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if(HAVE_LOG AND HAVE_EXP)
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target_compile_definitions(MathFunctions
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PRIVATE "HAVE_LOG" "HAVE_EXP")
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endif()
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# install rules
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install(TARGETS MathFunctions DESTINATION lib)
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install(FILES MathFunctions.h DESTINATION include)
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