[lldb/CMake] Rename LLDB_DISABLE_PYTHON to LLDB_ENABLE_PYTHON

This matches the naming scheme used by LLVM and all the other optional
dependencies in LLDB.

Differential revision: https://reviews.llvm.org/D71482

1 files changed, 21 insertions, 18 deletions

diff --git a/lldb/cmake/modules/LLDBConfig.cmake b/lldb/cmake/modules/LLDBConfig.cmake
index d2ae1ba2014..da006039b26 100644
--- a/lldb/cmake/modules/LLDBConfig.cmake
+++ b/lldb/cmake/modules/LLDBConfig.cmake
@@ -24,16 +24,19 @@ if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Darw
   set(LLDB_LINKER_SUPPORTS_GROUPS ON)
 endif()
 
-set(default_disable_python OFF)
+set(default_enable_python ON)
 set(default_enable_libedit ON)
 set(default_enable_curses ON)
 
-# Temporary support the old LLDB_DISABLE_CURSES variable
+# Temporary support the old LLDB_DISABLE_* variables
 if (DEFINED LLDB_DISABLE_CURSES)
   if (LLDB_DISABLE_CURSES)
     set(default_enable_curses OFF)
-  else()
-    set(default_enable_curses ON)
+  endif()
+endif()
+if (DEFINED LLDB_DISABLE_PYTHON)
+  if (LLDB_DISABLE_PYTHON)
+    set(default_enable_python OFF)
   endif()
 endif()
 
@@ -45,14 +48,14 @@ if(CMAKE_SYSTEM_NAME MATCHES "Windows")
   set(default_enable_libedit OFF)
   set(default_enable_curses OFF)
 elseif(CMAKE_SYSTEM_NAME MATCHES "Android")
-  set(default_disable_python ON)
+  set(default_enable_python OFF)
   set(default_enable_libedit OFF)
   set(default_enable_curses OFF)
 elseif(IOS)
-  set(default_disable_python ON)
+  set(default_enable_python OFF)
 endif()
 
-option(LLDB_DISABLE_PYTHON "Disable Python scripting integration." ${default_disable_python})
+option(LLDB_ENABLE_PYTHON "Enable Python scripting integration." ${default_enable_python})
 option(LLDB_ENABLE_LIBEDIT "Enable the use of editline." ${default_enable_libedit})
 option(LLDB_ENABLE_CURSES "Enable Curses integration." ${default_enable_curses})
 option(LLDB_RELOCATABLE_PYTHON "Use the PYTHONHOME environment variable to locate Python." OFF)
@@ -172,7 +175,7 @@ function(find_python_libs_windows_helper LOOKUP_DEBUG OUT_EXE_PATH_VARNAME OUT_L
 
   if (NOT PYTHON_EXE OR NOT PYTHON_LIB OR NOT PYTHON_DLL)
     message(WARNING "Unable to find all Python components.  Python support will be disabled for this build.")
-    set(LLDB_DISABLE_PYTHON 1 PARENT_SCOPE)
+    set(LLDB_ENABLE_PYTHON 0 PARENT_SCOPE)
     return()
   endif()
 
@@ -197,7 +200,7 @@ endfunction()
 function(find_python_libs_windows)
   if ("${PYTHON_HOME}" STREQUAL "")
     message(WARNING "LLDB embedded Python on Windows requires specifying a value for PYTHON_HOME.  Python support disabled.")
-    set(LLDB_DISABLE_PYTHON 1 PARENT_SCOPE)
+    set(LLDB_ENABLE_PYTHON 0 PARENT_SCOPE)
     return()
   endif()
 
@@ -214,7 +217,7 @@ function(find_python_libs_windows)
   else()
     message(WARNING "Unable to find ${PYTHON_INCLUDE_DIR}/patchlevel.h, Python installation is corrupt.")
     message(WARNING "Python support will be disabled for this build.")
-    set(LLDB_DISABLE_PYTHON 1 PARENT_SCOPE)
+    set(LLDB_ENABLE_PYTHON 0 PARENT_SCOPE)
     return()
   endif()
 
@@ -226,8 +229,8 @@ function(find_python_libs_windows)
     # Lookup for both debug and release python installations
     find_python_libs_windows_helper(TRUE  PYTHON_DEBUG_EXE   PYTHON_DEBUG_LIB   PYTHON_DEBUG_DLL   PYTHON_DEBUG_VERSION_STRING)
     find_python_libs_windows_helper(FALSE PYTHON_RELEASE_EXE PYTHON_RELEASE_LIB PYTHON_RELEASE_DLL PYTHON_RELEASE_VERSION_STRING)
-    if(LLDB_DISABLE_PYTHON)
-      set(LLDB_DISABLE_PYTHON 1 PARENT_SCOPE)
+    if(NOT LLDB_ENABLE_PYTHON)
+      set(LLDB_ENABLE_PYTHON 0 PARENT_SCOPE)
       return()
     endif()
 
@@ -250,8 +253,8 @@ function(find_python_libs_windows)
       set(LOOKUP_DEBUG_PYTHON FALSE)
     endif()
     find_python_libs_windows_helper(${LOOKUP_DEBUG_PYTHON} PYTHON_EXECUTABLE PYTHON_LIBRARY PYTHON_DLL PYTHON_VERSION_STRING)
-    if(LLDB_DISABLE_PYTHON)
-      set(LLDB_DISABLE_PYTHON 1 PARENT_SCOPE)
+    if(NOT LLDB_ENABLE_PYTHON)
+      set(LLDB_ENABLE_PYTHON 0 PARENT_SCOPE)
       return()
     endif()
   endif()
@@ -286,12 +289,12 @@ endfunction(find_python_libs_windows)
 
 # Call find_python_libs_windows ahead of the rest of the python configuration.
 # It's possible that it won't find a python installation and will then set
-# LLDB_DISABLE_PYTHON to ON.
-if (NOT LLDB_DISABLE_PYTHON AND "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
+# LLDB_ENABLE_PYTHON to OFF.
+if (LLDB_ENABLE_PYTHON AND "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
   find_python_libs_windows()
 endif()
 
-if (NOT LLDB_DISABLE_PYTHON)
+if (LLDB_ENABLE_PYTHON)
   if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
     if (NOT LLDB_RELOCATABLE_PYTHON)
       file(TO_CMAKE_PATH "${PYTHON_HOME}" LLDB_PYTHON_HOME)
@@ -320,7 +323,7 @@ if (NOT LLDB_DISABLE_PYTHON)
   endif()
 endif()
 
-if (LLDB_DISABLE_PYTHON)
+if (NOT LLDB_ENABLE_PYTHON)
   unset(PYTHON_INCLUDE_DIR)
   unset(PYTHON_LIBRARY)
   unset(PYTHON_EXECUTABLE)