Integrate MySQL module.

module/Vendor/MDBC/cmake/SearchLibrary.cmake

@@ -0,0 +1,31 @@
+#
+#  Copyright (C) 2013-2016 MariaDB Corporation AB
+#
+#  Redistribution and use is allowed according to the terms of the New
+#  BSD license.
+#  For details see the COPYING-CMAKE-SCRIPTS file.
+#
+
+INCLUDE(CheckFunctionExists)
+INCLUDE(CheckLibraryExists)
+ 
+FUNCTION(SEARCH_LIBRARY library_name function liblist)
+  IF(${${library_name}})
+    RETURN()
+  ENDIF()
+  CHECK_FUNCTION_EXISTS(${function} ${function}_IS_SYS_FUNC)
+  # check if function is part of libc
+  IF(HAVE_${function}_IS_SYS_FUNC)
+    SET(${library_name} "" PARENT_SCOPE)
+    RETURN()
+  ENDIF()
+  FOREACH(lib ${liblist})
+    CHECK_LIBRARY_EXISTS(${lib} ${function} "" HAVE_${function}_IN_${lib})
+    IF(HAVE_${function}_IN_${lib})
+      SET(${library_name} ${lib} PARENT_SCOPE)
+      SET(HAVE_${library_name} 1 PARENT_SCOPE)
+      RETURN()
+    ENDIF()
+  ENDFOREACH()
+ENDFUNCTION()
+