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| author | Kyle Edwards <kyle.edwards@kitware.com> | 2020-04-07 18:54:54 (GMT) |
|---|---|---|
| committer | Kyle Edwards <kyle.edwards@kitware.com> | 2020-04-07 18:54:54 (GMT) |
| commit | d54f0aa9b71dfcc04f077e5b19c6122cb4b98d83 (patch) | |
| tree | 987fbabfbdda89ed4aaea7fa9c99ee99f4e27084 /Help/guide/tutorial/Step6/MathFunctions | |
| parent | 2f949be4b3a4e9da43a1c445300084a2d63837e2 (diff) | |
| parent | b8b804e2ed8dca3c6d116a6e8a1cb66cbd6ad241 (diff) | |
| download | CMake-d54f0aa9b71dfcc04f077e5b19c6122cb4b98d83.zip CMake-d54f0aa9b71dfcc04f077e5b19c6122cb4b98d83.tar.gz CMake-d54f0aa9b71dfcc04f077e5b19c6122cb4b98d83.tar.bz2 | |
Merge branch 'master' into ninja-order-depends
Diffstat (limited to 'Help/guide/tutorial/Step6/MathFunctions')
| -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") |