diff options
Diffstat (limited to 'Help/guide/tutorial/Step6')
| -rw-r--r-- | Help/guide/tutorial/Step6/MathFunctions/CMakeLists.txt | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Help/guide/tutorial/Step6/MathFunctions/CMakeLists.txt b/Help/guide/tutorial/Step6/MathFunctions/CMakeLists.txt index 4bf6024..f64c6ac 100644 --- a/Help/guide/tutorial/Step6/MathFunctions/CMakeLists.txt +++ b/Help/guide/tutorial/Step6/MathFunctions/CMakeLists.txt @@ -8,10 +8,20 @@ target_include_directories(MathFunctions # does this system provide the log and exp functions? include(CheckSymbolExists) -set(CMAKE_REQUIRED_LIBRARIES "m") 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") |