Makefile.in (c-lex.o): Update.

	* Makefile.in (c-lex.o): Update.
	* c-lex.c: Include target.h.
	(cb_register_builtins): New.
	(init_c_lex): Set builtins callback.
	* c-lex.h (cpp_define, cpp_assert): New prototypes.
	* cppinit.c (init_builtins): Use callback, including for
	GXX_WEAK.
	* cpplib.h (struct cpp_callbacks): New member.
	* target-def.h (TARGET_REGISTER_CPP_BUILTINS): New.
	(TARGET_INITIALIZER): Update.
	* target.h (struct gcc_target): New hook.
	* tree.c (default_register_cpp_builtins): New.
	* tree.h (default_register_cpp_builtins): New.
doc:
	* tm.texi (TARGET_REGISTER_CPP_BUILTINS): Document.

From-SVN: r53165

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index 945f3a1..aaef973 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -2543,6 +2543,13 @@ build_type_attribute_variant (ttype, attribute)
   return ttype;
 }
 
+/* Default registration of target-specific CPP built-ins.  */
+void
+default_register_cpp_builtins (pfile)
+     struct cpp_reader *pfile ATTRIBUTE_UNUSED;
+{
+}
+
 /* Default value of targetm.comp_type_attributes that always returns 1.  */
 
 int