df9cdf629c
* Updated output message * Use 'target_compile_definitions' for HAVE_LOG and HAVE_EXP Previously, the change from using TutorialConfig.h to target_compile_definitions happened without explanation as part of Step 8.
23 lines
713 B
CMake
23 lines
713 B
CMake
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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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_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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