libcpp: Keep a record of changes from upstream GCC (pre-43).

This makes it easier to track the changes in the rare event of the code
being distributed without access to version control.

MFC after:	3 weeks

1 files changed, 29 insertions, 0 deletions

diff --git a/contrib/gcclibs/libcpp/ChangeLog.gcc43 b/contrib/gcclibs/libcpp/ChangeLog.gcc43
new file mode 100644
index 0000000..6957bce
--- /dev/null
+++ b/contrib/gcclibs/libcpp/ChangeLog.gcc43
@@ -0,0 +1,29 @@
+2007-06-05  Joerg Wunsch  <j.gnu@uriah.heep.sax.de> (r250566)
+
+	PR preprocessor/23479
+	* expr.c (cpp_classify_number): Implement 0b-prefixed binary
+	integer constants.
+	(append_digit): Likewise.
+	* include/cpplib.h: Add CPP_N_BINARY, to be used for 0b-prefixed
+	binary integer constants.
+	
+2007-05-21  Ian Lance Taylor  <iant@google.com> (r124929)
+
+	* internal.h (struct cpp_reader): Add new fields:
+	nonexistent_file_hash and nonexistent_file_ob.
+	* files.c: Include "obstack.h".
+	(find_file_in_dir): Before trying to open the file, look up the
+	path name in the hash table of nonexistent files.  After failing
+	to open the file, add the path name to the hash table.
+	(_cpp_find_file): Cache the results of looking up the file name
+	starting with the quote and bracket chain heads, if we can.
+	(nonexistent_file_hash_eq): New static function.
+	(_cpp_init_files): Initialize pfile->nonexistent_file_hash and
+	pfile->nonexistent_file_ob.
+	(_cpp_cleanup_files): Free pfile->nonexistent_file_hash and
+	pfile->nonexistent_file_ob.
+
+2006-12-29  Ian Lance Taylor  <iant@google.com> (r120263)
+
+	* lex.c (_cpp_clean_line): Add uses of __builtin_expect.  Don't
+	look backward at the end of the line unless we saw a backslash.