outsource detect functions

2015-09-17 00:55:54 +02:00
parent 8d81310cc6
commit d9f4b0a3b4
3 changed files with 46 additions and 6 deletions
--- a/modules/detect/detect_libraries.cmake
+++ b/modules/detect/detect_libraries.cmake
@ -0,0 +1,22 @@
+include(CheckFunctionExists)
+
+function(_find_library _names _check_function _result)
+    if(APPLE)
+        find_library(_lib
+            NAMES ${_names}
+            PATHS /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64
+            ENV DYLD_LIBRARY_PATH
+            )
+    else()
+        find_library(_lib
+            NAMES ${_names}
+            PATHS /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64
+            ENV LD_LIBRARY_PATH
+            )
+    endif()
+    set(CMAKE_REQUIRED_LIBRARIES ${_lib})
+    check_function_exists(${_check_function} _library_works)
+    if(${_library_works})
+        set(${_result} ${_lib} PARENT_SCOPE)
+    endif()
+endfunction()