gengtype plugin improvement last4round -patch 4 [filerules]

[Basile Starynkevitch]

Hello,

[join work by Basile Starynkevitch & Jeremie Salvucci]

References:
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01711.html
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01743.html
http://gcc.gnu.org/ml/gcc-patches/2010-11/msg00780.html

The attached patch relative to trunk rev167000 adds a regular
expression file rules machinery to compute the output file name for a
given input file. More detailed explanations are in the above
referenced messages and inside the patch.

########## gcc/ChangeLog entry ###########
2010-11-21  Jeremie Salvucci  <jeremie.salvucci@free.fr>
	    Basile Starynkevitch  <basile@starynkevitch.net>

	* gengtype.c: Include xregex.h and obstack.h
	Added comments about role of get_output_file_with_visibility and
	our regexpr machinery.
	(frul_actionrout_t, struct file_rule_st): New.
	(hader_dot_h_frul, source_dot_c_frul): New functions.
	(NULL_REGEX,  NULL_FRULACT): New.
	(files_rules): New.
	(matching_file_name_substitute): New function.
	(get_output_file_with_visibility): Updated comments and rewritten
	to use the new files_rules machinery.

        * Makefile.in (XREGEX_H): Added variable.
        (build/gengtype.o): Added dependencies for xregex.h and obstack.h
#######################

Bootstrapped on x86_64-unknown-linux-gnu (Debian/Sid/AMD64) with
'/usr/src/Lang/gcc-trunk-bstarynk/configure'   '--enable-plugins' 
'--program-suffix=-plaintrunk' '--enable-maintainer-mode' 
'--enable-checks=tree,gc' '--enable-bootstrap' '--disable-multilib' 
'--enable-version-specific-runtime-libs' 'CFLAGS=-g -O' 
'--enable-languages=c,c++,lto,objc'

Ok for trunk?

Cheers
-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
8, rue de la Faiencerie, 92340 Bourg La Reine, France
*** opinions {are only mine, sont seulement les miennes} ***
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