Hi!
As mentioned in the PR, most of the pch tests fail if stdc-predef.h header
includes other headers. I don't have such a system, but changed my
stdc-predef.h to include a dummy header bits/predef.h and this patch fixes
all the tests that failed because of that.
AFAIK file->implicit_preinclude flag is used solely for the PCH purposes,
and this patch makes sure that headers included from implicit_preinclude
headers are also implicit_preinclude.
Bootstrapped/regtested on x86_64-linux, ok for trunk?
2016-01-28 Jakub Jelinek <ja...@redhat.com>
PR pch/68176
* files.c (_cpp_find_file): Set file->implicit_preinclude even if
included from file->implicit_preinclude header.
--- libcpp/files.c.jj 2016-01-08 07:42:49.000000000 +0100
+++ libcpp/files.c 2016-01-28 09:53:06.569750380 +0100
@@ -522,7 +522,10 @@ _cpp_find_file (cpp_reader *pfile, const
return entry->u.file;
file = make_cpp_file (pfile, start_dir, fname);
- file->implicit_preinclude = implicit_preinclude;
+ file->implicit_preinclude
+ = (implicit_preinclude
+ || (pfile->buffer
+ && pfile->buffer->file->implicit_preinclude));
/* Try each path in the include chain. */
for (; !fake ;)
Jakub
