56 lines
1.7 KiB
CMake
56 lines
1.7 KiB
CMake
add_library(MathFunctions MathFunctions.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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# should we use our own math functions
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option(USE_MYMATH "Use tutorial provided math implementation" ON)
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if (USE_MYMATH)
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target_compile_definitions(MathFunctions PRIVATE "USE_MYMATH")
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# library that just does sqrt
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add_library(SqrtLibrary STATIC
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mysqrt.cxx
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)
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# link SqrtLibrary to tutorial_compiler_flags
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target_link_libraries(SqrtLibrary PUBLIC tutorial_compiler_flags)
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# TODO 1: Include CheckCXXSourceCompiles
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# TODO 2: Use check_cxx_source_compiles with simple C++ code to verify
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# availability of:
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# * std::log
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# * std::exp
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# Store the results in HAVE_LOG and HAVE_EXP respectively.
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# Hint: Sample C++ code which uses log:
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# #include <cmath>
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# int main() {
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# std::log(1.0);
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# return 0;
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# }
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# TODO 3: Conditionally on HAVE_LOG and HAVE_EXP, add private compile
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# definitions "HAVE_LOG" and "HAVE_EXP" to the SqrtLibrary target.
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# Hint: Use target_compile_definitions()
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target_link_libraries(MathFunctions PRIVATE SqrtLibrary)
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endif()
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# link MathFunctions to tutorial_compiler_flags
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target_link_libraries(MathFunctions PUBLIC tutorial_compiler_flags)
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# install libs
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set(installable_libs MathFunctions tutorial_compiler_flags)
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if(TARGET SqrtLibrary)
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list(APPEND installable_libs SqrtLibrary)
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endif()
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install(TARGETS ${installable_libs} DESTINATION lib)
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# install include headers
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install(FILES MathFunctions.h DESTINATION include)
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