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