[lldb/CMake] Use PYTHON_LIBRARIES instead of PYTHON_LIBRARY

PYTHON_LIBRARIES is the canonical variable set by FindPythonLibs while
PYTHON_LIBRARY is an implementation detail. This replaces the uses of
the latter with the former.

lldb/cmake/modules/LLDBConfig.cmake

@@ -145,7 +145,7 @@ if (LLDB_ENABLE_PYTHON)
     if(Python3_VERSION VERSION_LESS 3.5)
       message(SEND_ERROR "Python 3.5 or newer is required (found: ${Python3_VERSION}")
     endif()
-    set(PYTHON_LIBRARY ${Python3_LIBRARIES})
+    set(PYTHON_LIBRARIES ${Python3_LIBRARIES})
     include_directories(${Python3_INCLUDE_DIRS})
 
     if (NOT LLDB_RELOCATABLE_PYTHON)
@@ -178,7 +178,7 @@ endif()
 
 if (NOT LLDB_ENABLE_PYTHON)
   unset(PYTHON_INCLUDE_DIR)
-  unset(PYTHON_LIBRARY)
+  unset(PYTHON_LIBRARIES)
   unset(PYTHON_EXECUTABLE)
 endif()
 

lldb/source/API/CMakeLists.txt

@@ -172,9 +172,9 @@ endif()
 
 if ( CMAKE_SYSTEM_NAME MATCHES "Windows" )
   # Only MSVC has the ABI compatibility problem and avoids using FindPythonLibs,
-  # so only it needs to explicitly link against ${PYTHON_LIBRARY}
+  # so only it needs to explicitly link against ${PYTHON_LIBRARIES}
   if (MSVC AND LLDB_ENABLE_PYTHON)
-    target_link_libraries(liblldb PRIVATE ${PYTHON_LIBRARY})
+    target_link_libraries(liblldb PRIVATE ${PYTHON_LIBRARIES})
   endif()
 else()
   set_target_properties(liblldb

lldb/source/Plugins/ScriptInterpreter/Python/CMakeLists.txt

@@ -19,7 +19,7 @@ add_lldb_library(lldbPluginScriptInterpreterPython PLUGIN
     lldbHost
     lldbInterpreter
     lldbTarget
-    ${PYTHON_LIBRARY}
+    ${PYTHON_LIBRARIES}
     ${LLDB_LIBEDIT_LIBS}
 
   LINK_COMPONENTS