re PR c++/42748 (warnings about 'mangling of 'va_list' has changed in GCC 4.4' not suppressed in sytem headers)
2010-02-27 Mark Mitchell <mark@codesourcery.com>
PR c++/42748
* cp-tree.h (push_tinst_level): Declare.
(pop_tinst_level): Likewise.
* pt.c (push_tinst_level): Give it external linkage.
(pop_tinst_level): Likewise.
* mangle.c (mangle_decl_string): Set the source location to that
of the decl while mangling.