2003-10-21 Arnaud Charlet <charlet@act-europe.fr>

	* 3psoccon.ads, 3veacodu.adb, 3vexpect.adb, 3vsoccon.ads,
	3vsocthi.adb, 3vsocthi.ads, 3vtrasym.adb, 3zsoccon.ads,
	3zsocthi.adb, 3zsocthi.ads, 50system.ads, 51system.ads,
	55system.ads, 56osinte.adb, 56osinte.ads, 56taprop.adb,
	56taspri.ads, 56tpopsp.adb, 57system.ads, 58system.ads,
	59system.ads, 5aml-tgt.adb, 5bml-tgt.adb, 5csystem.ads,
	5dsystem.ads, 5fosinte.adb, 5gml-tgt.adb, 5hml-tgt.adb,
	5isystem.ads, 5lparame.adb, 5msystem.ads, 5psystem.ads,
	5sml-tgt.adb, 5sosprim.adb, 5stpopsp.adb, 5tsystem.ads,
	5usystem.ads, 5vml-tgt.adb, 5vsymbol.adb, 5vtraent.adb,
	5vtraent.ads, 5wml-tgt.adb, 5xparame.ads, 5xsystem.ads,
	5xvxwork.ads, 5yparame.ads, 5ytiitho.adb, 5zinit.adb,
	5zml-tgt.adb, 5zparame.ads, 5ztaspri.ads, 5ztfsetr.adb,
	5zthrini.adb, 5ztiitho.adb, 5ztpopsp.adb, 7stfsetr.adb,
	7straces.adb, 7strafor.adb, 7strafor.ads, 7stratas.adb,
	a-excach.adb, a-exexda.adb, a-exexpr.adb, a-exextr.adb,
	a-exstat.adb, a-strsup.adb, a-strsup.ads, a-stwisu.adb,
	a-stwisu.ads, bld.adb, bld.ads, bld-io.adb,
	bld-io.ads, clean.adb, clean.ads, ctrl_c.c,
	erroutc.adb, erroutc.ads, errutil.adb, errutil.ads,
	err_vars.ads, final.c, g-arrspl.adb, g-arrspl.ads,
	g-boubuf.adb, g-boubuf.ads, g-boumai.ads, g-bubsor.adb,
	g-bubsor.ads, g-comver.adb, g-comver.ads, g-ctrl_c.ads,
	g-dynhta.adb, g-dynhta.ads, g-eacodu.adb, g-excact.adb,
	g-excact.ads, g-heasor.adb, g-heasor.ads, g-memdum.adb,
	g-memdum.ads, gnatclean.adb, gnatsym.adb, g-pehage.adb,
	g-pehage.ads, g-perhas.ads, gpr2make.adb, gpr2make.ads,
	gprcmd.adb, gprep.adb, gprep.ads, g-semaph.adb,
	g-semaph.ads, g-string.adb, g-string.ads, g-strspl.ads,
	g-wistsp.ads, i-vthrea.adb, i-vthrea.ads, i-vxwoio.adb,
	i-vxwoio.ads, Makefile.generic, Makefile.prolog, Makefile.rtl,
	prep.adb, prep.ads, prepcomp.adb, prepcomp.ads,
	prj-err.adb, prj-err.ads, s-boarop.ads, s-carsi8.adb,
	s-carsi8.ads, s-carun8.adb, s-carun8.ads, s-casi16.adb,
	s-casi16.ads, s-casi32.adb, s-casi32.ads, s-casi64.adb,
	s-casi64.ads, s-casuti.adb, s-casuti.ads, s-caun16.adb,
	s-caun16.ads, s-caun32.adb, s-caun32.ads, s-caun64.adb,
	s-caun64.ads, scng.adb, scng.ads, s-exnint.adb,
	s-exnllf.adb, s-exnlli.adb, s-expint.adb, s-explli.adb,
	s-geveop.adb, s-geveop.ads, s-hibaen.ads, s-htable.adb,
	s-htable.ads, sinput-c.adb, sinput-c.ads, s-memcop.ads,
	socket.c, s-purexc.ads, s-scaval.adb, s-stopoo.adb,
	s-strcom.adb, s-strcom.ads, s-strxdr.adb, s-rident.ads,
	s-thread.adb, s-thread.ads, s-tpae65.adb, s-tpae65.ads,
	s-tporft.adb, s-traent.adb, s-traent.ads, styleg.adb,
	styleg.ads, styleg-c.adb, styleg-c.ads, s-veboop.adb,
	s-veboop.ads, s-vector.ads, symbols.adb, symbols.ads,
	tb-alvms.c, tb-alvxw.c, tempdir.adb, tempdir.ads,
	vms_conv.ads, vms_conv.adb, vms_data.ads,
	vxaddr2line.adb: Files added. Merge with ACT tree.

	* 4dintnam.ads, 4mintnam.ads, 4uintnam.ads, 52system.ads,
	5dosinte.ads, 5etpopse.adb, 5mosinte.ads, 5qosinte.adb,
	5qosinte.ads, 5qstache.adb, 5qtaprop.adb, 5qtaspri.ads,
	5stpopse.adb, 5uintman.adb, 5uosinte.ads, adafinal.c,
	g-enblsp.adb, io-aux.c, scn-nlit.adb, scn-slit.adb,
	s-exnflt.ads, s-exngen.adb, s-exngen.ads, s-exnlfl.ads,
	s-exnlin.ads, s-exnsfl.ads, s-exnsin.ads, s-exnssi.ads,
	s-expflt.ads, s-expgen.adb, s-expgen.ads, s-explfl.ads,
	s-explin.ads, s-expllf.ads, s-expsfl.ads, s-expsin.ads,
	s-expssi.ads, style.adb: Files removed. Merge with ACT tree.

	* 1ic.ads, 31soccon.ads, 31soliop.ads, 3asoccon.ads,
	3bsoccon.ads, 3gsoccon.ads, 3hsoccon.ads, 3ssoccon.ads,
	3ssoliop.ads, 3wsoccon.ads, 3wsocthi.adb, 3wsocthi.ads,
	3wsoliop.ads, 41intnam.ads, 42intnam.ads, 4aintnam.ads,
	4cintnam.ads, 4gintnam.ads, 4hexcpol.adb, 4hintnam.ads,
	4lintnam.ads, 4nintnam.ads, 4ointnam.ads, 4onumaux.ads,
	4pintnam.ads, 4sintnam.ads, 4vcaldel.adb, 4vcalend.adb,
	4vintnam.ads, 4wexcpol.adb, 4wintnam.ads, 4zintnam.ads,
	51osinte.adb, 51osinte.ads, 52osinte.adb, 52osinte.ads,
	53osinte.ads, 54osinte.ads, 5aosinte.adb, 5aosinte.ads,
	5asystem.ads, 5ataprop.adb, 5atasinf.ads, 5ataspri.ads,
	5atpopsp.adb, 5avxwork.ads, 5bosinte.adb, 5bosinte.ads,
	5bsystem.ads, 5cosinte.ads, 5esystem.ads, 5fintman.adb,
	5fosinte.ads, 5fsystem.ads, 5ftaprop.adb, 5ftasinf.ads,
	5ginterr.adb, 5gintman.adb, 5gmastop.adb, 5gosinte.ads,
	5gproinf.ads, 5gsystem.ads, 5gtaprop.adb, 5gtasinf.ads,
	5gtpgetc.adb, 5hosinte.adb, 5hosinte.ads, 5hsystem.ads,
	5htaprop.adb, 5htaspri.ads, 5htraceb.adb, 5iosinte.adb,
	5itaprop.adb, 5itaspri.ads, 5ksystem.ads, 5kvxwork.ads,
	5lintman.adb, 5lml-tgt.adb, 5losinte.ads, 5lsystem.ads,
	5mvxwork.ads, 5ninmaop.adb, 5nintman.adb, 5nosinte.ads,
	5ntaprop.adb, 5ntaspri.ads, 5ointerr.adb, 5omastop.adb,
	5oosinte.adb, 5oosinte.ads, 5oosprim.adb, 5oparame.adb,
	5osystem.ads, 5otaprop.adb, 5otaspri.ads, 5posinte.ads,
	5posprim.adb, 5pvxwork.ads, 5sintman.adb, 5sosinte.adb,
	5sosinte.ads, 5ssystem.ads, 5staprop.adb, 5stasinf.ads,
	5staspri.ads, 5svxwork.ads, 5tosinte.ads, 5vasthan.adb,
	5vinmaop.adb, 5vinterr.adb, 5vintman.adb, 5vintman.ads,
	5vmastop.adb, 5vosinte.adb, 5vosinte.ads, 5vosprim.adb,
	5vsystem.ads, 5vtaprop.adb, 5vtaspri.ads, 5vtpopde.adb,
	5vtpopde.ads, 5wgloloc.adb, 5wintman.adb, 5wmemory.adb,
	5wosprim.adb, 5wsystem.ads, 5wtaprop.adb, 5wtaspri.ads,
	5ysystem.ads, 5zinterr.adb, 5zintman.adb, 5zosinte.adb,
	5zosinte.ads, 5zosprim.adb, 5zsystem.ads, 5ztaprop.adb,
	6vcpp.adb, 6vcstrea.adb, 6vinterf.ads, 7sinmaop.adb,
	7sintman.adb, 7sosinte.adb, 7sosprim.adb, 7staprop.adb,
	7staspri.ads, 7stpopsp.adb, 7straceb.adb, 9drpc.adb,
	a-caldel.adb, a-caldel.ads, a-charac.ads, a-colien.ads,
	a-comlin.adb, adaint.c, adaint.h, ada-tree.def,
	a-diocst.adb, a-diocst.ads, a-direio.adb, a-except.adb,
	a-except.ads, a-excpol.adb, a-exctra.adb, a-exctra.ads,
	a-filico.adb, a-interr.adb, a-intsig.adb, a-intsig.ads,
	ali.adb, ali.ads, ali-util.adb, ali-util.ads,
	a-ngcefu.adb, a-ngcoty.adb, a-ngelfu.adb, a-nudira.adb,
	a-nudira.ads, a-nuflra.adb, a-nuflra.ads, a-reatim.adb,
	a-reatim.ads, a-retide.ads, a-sequio.adb, a-siocst.adb,
	a-siocst.ads, a-ssicst.adb, a-ssicst.ads, a-strbou.adb,
	a-strbou.ads, a-strfix.adb, a-strmap.adb, a-strsea.ads,
	a-strunb.adb, a-strunb.ads, a-ststio.adb, a-stunau.adb,
	a-stunau.ads, a-stwibo.adb, a-stwibo.ads, a-stwifi.adb,
	a-stwima.adb, a-stwiun.adb, a-stwiun.ads, a-tags.adb,
	a-tags.ads, a-tasatt.adb, a-taside.adb, a-teioed.adb,
	a-textio.adb, a-textio.ads, a-tienau.adb, a-tifiio.adb,
	a-tiflau.adb, a-tiflio.adb, a-tigeau.adb, a-tigeau.ads,
	a-tiinau.adb, a-timoau.adb, a-tiocst.adb, a-tiocst.ads,
	atree.adb, atree.ads, a-witeio.adb, a-witeio.ads,
	a-wtcstr.adb, a-wtcstr.ads, a-wtdeio.adb, a-wtedit.adb,
	a-wtenau.adb, a-wtflau.adb, a-wtinau.adb, a-wtmoau.adb,
	bcheck.adb, binde.adb, bindgen.adb, bindusg.adb,
	checks.adb, checks.ads, cio.c, comperr.adb,
	comperr.ads, csets.adb, cstand.adb, cstreams.c,
	debug_a.adb, debug_a.ads, debug.adb, decl.c,
	einfo.adb, einfo.ads, errout.adb, errout.ads,
	eval_fat.adb, eval_fat.ads, exp_aggr.adb, expander.adb,
	expander.ads, exp_attr.adb, exp_ch11.adb, exp_ch13.adb,
	exp_ch2.adb, exp_ch3.adb, exp_ch3.ads, exp_ch4.adb,
	exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch7.ads,
	exp_ch8.adb, exp_ch9.adb, exp_code.adb, exp_dbug.adb,
	exp_dbug.ads, exp_disp.adb, exp_dist.adb, expect.c,
	exp_fixd.adb, exp_imgv.adb, exp_intr.adb, exp_pakd.adb,
	exp_prag.adb, exp_strm.adb, exp_strm.ads, exp_tss.adb,
	exp_tss.ads, exp_util.adb, exp_util.ads, exp_vfpt.adb,
	fe.h, fmap.adb, fmap.ads, fname.adb,
	fname.ads, fname-uf.adb, fname-uf.ads, freeze.adb,
	freeze.ads, frontend.adb, g-awk.adb, g-awk.ads,
	g-busora.adb, g-busora.ads, g-busorg.adb, g-busorg.ads,
	g-casuti.adb, g-casuti.ads, g-catiio.adb, g-catiio.ads,
	g-cgi.adb, g-cgi.ads, g-cgicoo.adb, g-cgicoo.ads,
	g-cgideb.adb, g-cgideb.ads, g-comlin.adb, g-comlin.ads,
	g-crc32.adb, g-crc32.ads, g-debpoo.adb, g-debpoo.ads,
	g-debuti.adb, g-debuti.ads, g-diopit.adb, g-diopit.ads,
	g-dirope.adb, g-dirope.ads, g-dyntab.adb, g-dyntab.ads,
	g-except.ads, g-exctra.adb, g-exctra.ads, g-expect.adb,
	g-expect.ads, g-hesora.adb, g-hesora.ads, g-hesorg.adb,
	g-hesorg.ads, g-htable.adb, g-htable.ads, gigi.h,
	g-io.adb, g-io.ads, g-io_aux.adb, g-io_aux.ads,
	g-locfil.adb, g-locfil.ads, g-md5.adb, g-md5.ads,
	gmem.c, gnat1drv.adb, gnatbind.adb, gnatchop.adb,
	gnatcmd.adb, gnatfind.adb, gnatkr.adb, gnatlbr.adb,
	gnatlink.adb, gnatls.adb, gnatmake.adb, gnatmem.adb,
	gnatname.adb, gnatprep.adb, gnatprep.ads, gnatpsta.adb,
	gnatxref.adb, g-os_lib.adb, g-os_lib.ads, g-regexp.adb,
	g-regexp.ads, g-regist.adb, g-regist.ads, g-regpat.adb,
	g-regpat.ads, g-soccon.ads, g-socket.adb, g-socket.ads,
	g-socthi.adb, g-socthi.ads, g-soliop.ads, g-souinf.ads,
	g-speche.adb, g-speche.ads, g-spipat.adb, g-spipat.ads,
	g-spitbo.adb, g-spitbo.ads, g-sptabo.ads, g-sptain.ads,
	g-sptavs.ads, g-table.adb, g-table.ads, g-tasloc.adb,
	g-tasloc.ads, g-thread.adb, g-thread.ads, g-traceb.adb,
	g-traceb.ads, g-trasym.adb, g-trasym.ads, hostparm.ads,
	i-c.ads, i-cobol.adb, i-cpp.adb, i-cstrea.ads,
	i-cstrin.adb, i-cstrin.ads, impunit.adb, init.c,
	inline.adb, interfac.ads, i-pacdec.ads, itypes.adb,
	itypes.ads, i-vxwork.ads, lang.opt, lang-specs.h,
	layout.adb, lib.adb, lib.ads, lib-list.adb,
	lib-load.adb, lib-load.ads, lib-sort.adb, lib-util.adb,
	lib-writ.adb, lib-writ.ads, lib-xref.adb, lib-xref.ads,
	link.c, live.adb, make.adb, make.ads,
	Makefile.adalib, Makefile.in, Make-lang.in, makeusg.adb,
	mdll.adb, mdll-fil.adb, mdll-fil.ads, mdll-utl.adb,
	mdll-utl.ads, memroot.adb, memroot.ads, memtrack.adb,
	misc.c, mkdir.c, mlib.adb, mlib.ads,
	mlib-fil.adb, mlib-fil.ads, mlib-prj.adb, mlib-prj.ads,
	mlib-tgt.adb, mlib-tgt.ads, mlib-utl.adb, mlib-utl.ads,
	namet.adb, namet.ads, namet.h, nlists.ads,
	nlists.h, nmake.adt, opt.adb, opt.ads,
	osint.adb, osint.ads, osint-b.adb, osint-c.adb,
	par.adb, par-ch10.adb, par-ch11.adb, par-ch2.adb,
	par-ch3.adb, par-ch4.adb, par-ch5.adb, par-ch6.adb,
	par-ch9.adb, par-endh.adb, par-labl.adb, par-load.adb,
	par-prag.adb, par-sync.adb, par-tchk.adb, par-util.adb,
	prj.adb, prj.ads, prj-attr.adb, prj-attr.ads,
	prj-com.adb, prj-com.ads, prj-dect.adb, prj-dect.ads,
	prj-env.adb, prj-env.ads, prj-ext.adb, prj-ext.ads,
	prj-makr.adb, prj-makr.ads, prj-nmsc.adb, prj-nmsc.ads,
	prj-pars.adb, prj-pars.ads, prj-part.adb, prj-part.ads,
	prj-pp.adb, prj-pp.ads, prj-proc.adb, prj-proc.ads,
	prj-strt.adb, prj-strt.ads, prj-tree.adb, prj-tree.ads,
	prj-util.adb, prj-util.ads, raise.c, raise.h,
	repinfo.adb, repinfo.h, restrict.adb, restrict.ads,
	rident.ads, rtsfind.adb, rtsfind.ads, s-addima.ads,
	s-arit64.adb, s-assert.adb, s-assert.ads, s-atacco.adb,
	s-atacco.ads, s-auxdec.adb, s-auxdec.ads, s-bitops.adb,
	scans.ads, scn.adb, scn.ads, s-crc32.adb,
	s-crc32.ads, s-direio.adb, sem.adb, sem.ads,
	sem_aggr.adb, sem_attr.adb, sem_attr.ads, sem_case.adb,
	sem_case.ads, sem_cat.adb, sem_cat.ads, sem_ch10.adb,
	sem_ch11.adb, sem_ch12.adb, sem_ch12.ads, sem_ch13.adb,
	sem_ch13.ads, sem_ch3.adb, sem_ch3.ads, sem_ch4.adb,
	sem_ch5.adb, sem_ch5.ads, sem_ch6.adb, sem_ch6.ads,
	sem_ch7.adb, sem_ch7.ads, sem_ch8.adb, sem_ch8.ads,
	sem_ch9.adb, sem_disp.adb, sem_disp.ads, sem_dist.adb,
	sem_elab.adb, sem_eval.adb, sem_eval.ads, sem_intr.adb,
	sem_maps.adb, sem_mech.adb, sem_prag.adb, sem_prag.ads,
	sem_res.adb, sem_res.ads, sem_type.adb, sem_type.ads,
	sem_util.adb, sem_util.ads, sem_warn.adb, s-errrep.adb,
	s-errrep.ads, s-exctab.adb, s-exctab.ads, s-exnint.ads,
	s-exnllf.ads, s-exnlli.ads, s-expint.ads, s-explli.ads,
	s-expuns.ads, s-fatflt.ads, s-fatgen.adb, s-fatgen.ads,
	s-fatlfl.ads, s-fatllf.ads, s-fatsfl.ads, s-fileio.adb,
	s-fileio.ads, s-finimp.adb, s-finimp.ads, s-finroo.adb,
	s-finroo.ads, sfn_scan.adb, s-gloloc.adb, s-gloloc.ads,
	s-imgdec.adb, s-imgenu.adb, s-imgrea.adb, s-imgwch.adb,
	sinfo.adb, sinfo.ads, s-inmaop.ads, sinput.adb,
	sinput.ads, sinput-d.adb, sinput-l.adb, sinput-l.ads,
	sinput-p.adb, sinput-p.ads, s-interr.adb, s-interr.ads,
	s-intman.ads, s-maccod.ads, s-mastop.adb, s-mastop.ads,
	s-memory.adb, s-memory.ads, snames.adb, snames.ads,
	snames.h, s-osprim.ads, s-parame.ads, s-parint.ads,
	s-pooloc.adb, s-pooloc.ads, s-poosiz.adb, sprint.adb,
	s-proinf.ads, s-scaval.ads, s-secsta.adb, s-secsta.ads,
	s-sequio.adb, s-shasto.adb, s-shasto.ads, s-soflin.ads,
	s-stache.adb, s-stache.ads, s-stalib.adb, s-stalib.ads,
	s-stoele.ads, s-stopoo.ads, s-stratt.adb, s-stratt.ads,
	s-strops.adb, s-strops.ads, s-taasde.adb, s-taasde.ads,
	s-tadeca.adb, s-tadeca.ads, s-tadert.adb, s-tadert.ads,
	s-taenca.adb, s-taenca.ads, s-taprob.adb, s-taprob.ads,
	s-taprop.ads, s-tarest.adb, s-tarest.ads, s-tasdeb.adb,
	s-tasdeb.ads, s-tasinf.adb, s-tasinf.ads, s-tasini.adb,
	s-tasini.ads, s-taskin.adb, s-taskin.ads, s-tasque.adb,
	s-tasque.ads, s-tasren.adb, s-tasren.ads, s-tasres.ads,
	s-tassta.adb, s-tassta.ads, s-tasuti.adb, s-tasuti.ads,
	s-tataat.adb, s-tataat.ads, s-tpinop.adb, s-tpinop.ads,
	s-tpoben.adb, s-tpoben.ads, s-tpobop.adb, s-tpobop.ads,
	s-tposen.adb, s-tposen.ads, s-traceb.adb, s-traceb.ads,
	stringt.adb, stringt.ads, stringt.h, style.ads,
	stylesw.adb, stylesw.ads, s-unstyp.ads, s-vaflop.ads,
	s-valrea.adb, s-valuti.adb, s-vercon.adb, s-vmexta.adb,
	s-wchcnv.ads, s-wchcon.ads, s-widcha.adb, switch.adb,
	switch.ads, switch-b.adb, switch-c.adb, switch-m.adb,
	s-wwdcha.adb, s-wwdwch.adb, sysdep.c, system.ads,
	table.adb, table.ads, targparm.adb, targparm.ads,
	targtyps.c, tbuild.adb, tbuild.ads, tracebak.c,
	trans.c, tree_io.adb, treepr.adb, treeprs.adt,
	ttypes.ads, types.ads, types.h, uintp.adb,
	uintp.ads, uintp.h, uname.adb, urealp.adb,
	urealp.ads, urealp.h, usage.adb, utils2.c,
	utils.c, validsw.adb, validsw.ads, widechar.adb,
	xeinfo.adb, xnmake.adb, xref_lib.adb, xref_lib.ads,
	xr_tabls.adb, xr_tabls.ads, xtreeprs.adb, xsnames.adb,
	einfo.h, sinfo.h, treeprs.ads, nmake.ads, nmake.adb,
	gnatvsn.ads: Merge with ACT tree.

	* gnatvsn.adb: Rewritten in a simpler and more efficient way.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@72751 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1444 insertions, 0 deletions

diff --git a/gcc/ada/clean.adb b/gcc/ada/clean.adb
new file mode 100644
index 00000000000..8f38eb39cb0
--- /dev/null
+++ b/gcc/ada/clean.adb
@@ -0,0 +1,1444 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                                C L E A N                                 --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2003, Free Software Foundation, Inc.              --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with ALI;      use ALI;
+with Csets;
+with Gnatvsn;
+with Hostparm;
+with Namet;    use Namet;
+with Opt;      use Opt;
+with Osint;    use Osint;
+with Osint.M;  use Osint.M;
+with Prj;      use Prj;
+with Prj.Com;
+with Prj.Env;
+with Prj.Ext;
+with Prj.Pars;
+with Prj.Util; use Prj.Util;
+with Snames;
+with System;
+with Table;
+with Types;    use Types;
+
+with GNAT.Command_Line;         use GNAT.Command_Line;
+with GNAT.Directory_Operations; use GNAT.Directory_Operations;
+with GNAT.IO;                   use GNAT.IO;
+with GNAT.OS_Lib;               use GNAT.OS_Lib;
+
+
+package body Clean is
+
+   Initialized : Boolean := False;
+   --  Set to True by the first call to Initialize.
+   --  To avoid reinitialization of some packages.
+
+   --  Suffixes of various files
+
+   Assembly_Suffix : constant String := ".s";
+   ALI_Suffix      : constant String := ".ali";
+   Tree_Suffix     : constant String := ".adt";
+   Object_Suffix   : constant String := Get_Object_Suffix.all;
+   Debug_Suffix    : String          := ".dg";
+   --  Changed to "_dg" for VMS in the body of the package
+
+   Repinfo_Suffix  : String          := ".rep";
+   --  Changed to "_rep" for VMS in the body of the package
+
+   B_Start : String := "b~";
+   --  Prefix of binder generated file.
+   --  Changed to "b$" for VMS in the body of the package.
+
+   Object_Directory_Path : String_Access := null;
+   --  The path name of the object directory, set with switch -D
+
+   Do_Nothing : Boolean := False;
+   --  Set to True when switch -n is specified.
+   --  When True, no file is deleted. gnatclean only lists the files that
+   --  would have been deleted if the switch -n had not been specified.
+
+   File_Deleted : Boolean := False;
+   --  Set to True if at least one file has been deleted
+
+   Copyright_Displayed : Boolean := False;
+   Usage_Displayed     : Boolean := False;
+
+   Project_File_Name : String_Access := null;
+
+   Main_Project : Prj.Project_Id := Prj.No_Project;
+
+   All_Projects : Boolean := False;
+
+   --  Packages of project files where unknown attributes are errors.
+
+   Naming_String   : aliased String := "naming";
+   Builder_String  : aliased String := "builder";
+   Compiler_String : aliased String := "compiler";
+   Binder_String   : aliased String := "binder";
+   Linker_String   : aliased String := "linker";
+
+   Gnatmake_Packages : aliased String_List :=
+     (Naming_String   'Access,
+      Builder_String  'Access,
+      Compiler_String 'Access,
+      Binder_String   'Access,
+      Linker_String   'Access);
+
+   Packages_To_Check_By_Gnatmake : constant String_List_Access :=
+     Gnatmake_Packages'Access;
+
+   package Processed_Projects is new Table.Table
+     (Table_Component_Type => Project_Id,
+      Table_Index_Type     => Natural,
+      Table_Low_Bound      => 0,
+      Table_Initial        => 10,
+      Table_Increment      => 10,
+      Table_Name           => "Clean.Processed_Projects");
+   --  Table to keep track of what project files have been processed, when
+   --  switch -r is specified.
+
+   package Sources is new Table.Table
+     (Table_Component_Type => File_Name_Type,
+      Table_Index_Type     => Natural,
+      Table_Low_Bound      => 0,
+      Table_Initial        => 10,
+      Table_Increment      => 10,
+      Table_Name           => "Clean.Processed_Projects");
+   --  Table to store all the source files of a library unit: spec, body and
+   --  subunits, to detect .dg files and delete them.
+
+   ----------------------------
+   -- Queue (Q) manipulation --
+   ----------------------------
+
+   procedure Init_Q;
+   --  Must be called to initialize the Q
+
+   procedure Insert_Q
+     (Source_File : File_Name_Type);
+   --  If Source_File is not marked, inserts it at the end of Q and mark it
+
+   function Empty_Q return Boolean;
+   --  Returns True if Q is empty.
+
+   procedure Extract_From_Q
+     (Source_File : out File_Name_Type);
+   --  Extracts the first element from the Q.
+
+   Q_Front : Natural;
+   --  Points to the first valid element in the Q.
+
+   package Q is new Table.Table (
+     Table_Component_Type => File_Name_Type,
+     Table_Index_Type     => Natural,
+     Table_Low_Bound      => 0,
+     Table_Initial        => 4000,
+     Table_Increment      => 100,
+     Table_Name           => "Clean.Q");
+   --  This is the actual queue
+
+   -----------------------------
+   -- Other local subprograms --
+   -----------------------------
+
+   procedure Add_Source_Dir (N : String);
+   --  Call Add_Src_Search_Dir.
+   --  Output one line when in verbose mode.
+
+   procedure Add_Source_Directories is
+     new Prj.Env.For_All_Source_Dirs (Action => Add_Source_Dir);
+
+   procedure Add_Object_Dir (N : String);
+   --  Call Add_Lib_Search_Dir.
+   --  Output one line when in verbose mode.
+
+   procedure Add_Object_Directories is
+     new Prj.Env.For_All_Object_Dirs (Action => Add_Object_Dir);
+
+   function ALI_File_Name (Source : Name_Id) return String;
+   --  Returns the name of the ALI file corresponding to Source
+
+   function Assembly_File_Name (Source : Name_Id) return String;
+   --  Returns the assembly file name corresponding to Source
+
+   procedure Clean_Directory (Dir : Name_Id);
+   --  Delete all regular files in a library directory or in a library
+   --  interface dir.
+
+   procedure Clean_Executables;
+   --  Do the cleaning work when no project file is specified
+
+   procedure Clean_Project (Project : Project_Id);
+   --  Do the cleaning work when a project file is specified.
+   --  This procedure calls itself recursively when there are several
+   --  project files in the tree rooted at the main project file and switch -r
+   --  has been specified.
+
+   function Debug_File_Name (Source : Name_Id) return String;
+   --  Name of the expanded source file corresponding to Source
+
+   procedure Delete (In_Directory : String; File : String);
+   --  Delete one file, or list the file name if switch -n is specified
+
+   procedure Delete_Binder_Generated_Files (Dir : String; Source : Name_Id);
+   --  Delete the binder generated file in directory Dir for Source, if they
+   --  exist: for Unix these are b~<source>.ads, b~<source>.adb,
+   --  b~<source>.ali and b~<source>.o.
+
+   procedure Display_Copyright;
+   --  Display the Copyright notice.
+   --  If called several times, display the Copyright notice only the first
+   --  time.
+
+   procedure Initialize;
+   --  Call the necessary package initializations
+
+   function Object_File_Name (Source : Name_Id) return String;
+   --  Returns the object file name corresponding to Source
+
+   procedure Parse_Cmd_Line;
+   --  Parse the command line
+
+   function Repinfo_File_Name (Source : Name_Id) return String;
+   --  Returns the repinfo file name corresponding to Source
+
+   function Tree_File_Name (Source : Name_Id) return String;
+   --  Returns the tree file name corresponding to Source
+
+   function In_Extension_Chain
+     (Of_Project : Project_Id;
+      Prj        : Project_Id) return Boolean;
+   --  Returns True iff Prj is an extension of Of_Project or if Of_Project is
+   --  an extension of Prj.
+
+   procedure Usage;
+   --  Display the usage.
+   --  If called several times, the usage is displayed only the first time.
+
+   --------------------
+   -- Add_Object_Dir --
+   --------------------
+
+   procedure Add_Object_Dir (N : String) is
+   begin
+      Add_Lib_Search_Dir (N);
+
+      if Opt.Verbose_Mode then
+         Put ("Adding object directory """);
+         Put (N);
+         Put (""".");
+         New_Line;
+      end if;
+   end Add_Object_Dir;
+
+   --------------------
+   -- Add_Source_Dir --
+   --------------------
+
+   procedure Add_Source_Dir (N : String) is
+   begin
+      Add_Src_Search_Dir (N);
+
+      if Opt.Verbose_Mode then
+         Put ("Adding source directory """);
+         Put (N);
+         Put (""".");
+         New_Line;
+      end if;
+   end Add_Source_Dir;
+
+   -------------------
+   -- ALI_File_Name --
+   -------------------
+
+   function ALI_File_Name (Source : Name_Id) return String is
+      Src : constant String := Get_Name_String (Source);
+
+   begin
+      --  If the source name has an extension, then replace it with
+      --  the ALI suffix.
+
+      for Index in reverse Src'First + 1 .. Src'Last loop
+         if Src (Index) = '.' then
+            return Src (Src'First .. Index - 1) & ALI_Suffix;
+         end if;
+      end loop;
+
+      --  If there is no dot, or if it is the first character, just add the
+      --  ALI suffix.
+
+      return Src & ALI_Suffix;
+   end ALI_File_Name;
+
+   ------------------------
+   -- Assembly_File_Name --
+   ------------------------
+
+   function Assembly_File_Name (Source : Name_Id) return String is
+      Src : constant String := Get_Name_String (Source);
+
+   begin
+      --  If the source name has an extension, then replace it with
+      --  the assembly suffix.
+
+      for Index in reverse Src'First + 1 .. Src'Last loop
+         if Src (Index) = '.' then
+            return Src (Src'First .. Index - 1) & Assembly_Suffix;
+         end if;
+      end loop;
+
+      --  If there is no dot, or if it is the first character, just add the
+      --  assembly suffix.
+
+      return Src & Assembly_Suffix;
+   end Assembly_File_Name;
+
+   ---------------------
+   -- Clean_Directory --
+   ---------------------
+
+   procedure Clean_Directory (Dir : Name_Id) is
+      Directory : constant String := Get_Name_String (Dir);
+      Current   : constant Dir_Name_Str := Get_Current_Dir;
+
+      Direc : Dir_Type;
+
+      Name : String (1 .. 200);
+      Last : Natural;
+
+      procedure Set_Writable (Name : System.Address);
+      pragma Import (C, Set_Writable, "__gnat_set_writable");
+
+   begin
+      Change_Dir (Directory);
+      Open (Direc, ".");
+
+      --  For each regular file in the directory, if switch -n has not been
+      --  specified, make it writable and delete the file.
+
+      loop
+         Read (Direc, Name, Last);
+         exit when Last = 0;
+
+         if Is_Regular_File (Name (1 .. Last)) then
+            if not Do_Nothing then
+               Name (Last + 1) := ASCII.NUL;
+               Set_Writable (Name (1)'Address);
+            end if;
+
+            Delete (Directory, Name (1 .. Last));
+         end if;
+      end loop;
+
+      Close (Direc);
+
+      --  Restore the initial working directory
+
+      Change_Dir (Current);
+   end Clean_Directory;
+
+   -----------------------
+   -- Clean_Executables --
+   -----------------------
+
+   procedure Clean_Executables is
+      Main_Source_File : File_Name_Type;
+      --  Current main source
+
+      Source_File : File_Name_Type;
+      --  Current source file
+
+      Full_Source_File : File_Name_Type;
+      --  Full name of the current source file
+
+      Lib_File : File_Name_Type;
+      --  Current library file
+
+      Full_Lib_File : File_Name_Type;
+      --  Full name of the current library file
+
+      Text : Text_Buffer_Ptr;
+      The_ALI : ALI_Id;
+
+   begin
+      Init_Q;
+
+      --  It does not really matter if there is or not an object file
+      --  corresponding to an ALI file: if there is one, it will be deleted.
+
+      Opt.Check_Object_Consistency := False;
+
+      --  Proceed each executable one by one. Each source is marked as it is
+      --  processed, so common sources between executables will not be
+      --  processed several times.
+
+      for N_File in 1 .. Osint.Number_Of_Files loop
+         Main_Source_File := Next_Main_Source;
+         Insert_Q (Main_Source_File);
+
+         while not Empty_Q loop
+            Sources.Set_Last (0);
+            Extract_From_Q (Source_File);
+            Full_Source_File := Osint.Full_Source_Name (Source_File);
+            Lib_File         := Osint.Lib_File_Name (Source_File);
+            Full_Lib_File    := Osint.Full_Lib_File_Name (Lib_File);
+
+            --  If we have an existing ALI file that is not read-only,
+            --  process it.
+
+            if Full_Lib_File /= No_File
+              and then not Is_Readonly_Library (Full_Lib_File)
+            then
+               Text := Read_Library_Info (Lib_File);
+
+               if Text /= null then
+                  The_ALI :=
+                    Scan_ALI (Lib_File, Text, Ignore_ED => False, Err => True);
+                  Free (Text);
+
+                  --  If no error was produced while loading this ALI file,
+                  --  insert into the queue all the unmarked withed sources.
+
+                  if The_ALI /= No_ALI_Id then
+                     for J in ALIs.Table (The_ALI).First_Unit ..
+                       ALIs.Table (The_ALI).Last_Unit
+                     loop
+                        Sources.Increment_Last;
+                        Sources.Table (Sources.Last) :=
+                          ALI.Units.Table (J).Sfile;
+
+                        for K in ALI.Units.Table (J).First_With ..
+                          ALI.Units.Table (J).Last_With
+                        loop
+                           Insert_Q (Withs.Table (K).Sfile);
+                        end loop;
+                     end loop;
+
+                     --  Look for subunits and put them in the Sources table
+
+                     for J in ALIs.Table (The_ALI).First_Sdep ..
+                       ALIs.Table (The_ALI).Last_Sdep
+                     loop
+                        if Sdep.Table (J).Subunit_Name /= No_Name then
+                           Sources.Increment_Last;
+                           Sources.Table (Sources.Last) :=
+                             Sdep.Table (J).Sfile;
+                        end if;
+                     end loop;
+                  end if;
+               end if;
+
+               --  Now, delete all the existing files corresponding to this
+               --  ALI file.
+
+               declare
+                  Obj_Dir : constant String :=
+                              Dir_Name (Get_Name_String (Full_Lib_File));
+                  Obj     : constant String := Object_File_Name (Lib_File);
+                  Adt     : constant String := Tree_File_Name   (Lib_File);
+                  Asm     : constant String := Assembly_File_Name (Lib_File);
+
+               begin
+                  Delete (Obj_Dir, Get_Name_String (Lib_File));
+
+                  if Is_Regular_File (Obj_Dir & Dir_Separator & Obj) then
+                     Delete (Obj_Dir, Obj);
+                  end if;
+
+                  if Is_Regular_File (Obj_Dir & Dir_Separator & Adt) then
+                     Delete (Obj_Dir, Adt);
+                  end if;
+
+                  if Is_Regular_File (Obj_Dir & Dir_Separator & Asm) then
+                     Delete (Obj_Dir, Asm);
+                  end if;
+
+                  --  Delete expanded source files (.dg) and/or repinfo files
+                  --  (.rep) if any
+
+                  for J in 1 .. Sources.Last loop
+                     declare
+                        Deb : constant String :=
+                                         Debug_File_Name (Sources.Table (J));
+                        Rep : constant String :=
+                                         Repinfo_File_Name (Sources.Table (J));
+                     begin
+                        if Is_Regular_File (Obj_Dir & Dir_Separator & Deb) then
+                           Delete (Obj_Dir, Deb);
+                        end if;
+
+                        if Is_Regular_File (Obj_Dir & Dir_Separator & Rep) then
+                           Delete (Obj_Dir, Rep);
+                        end if;
+                     end;
+                  end loop;
+               end;
+            end if;
+         end loop;
+
+         --  Delete the executable, if it exists, and the binder generated
+         --  files, if any.
+
+         if not Compile_Only then
+            declare
+               Source : constant Name_Id := Strip_Suffix (Main_Source_File);
+               Executable : constant String := Get_Name_String
+                                              (Executable_Name (Source));
+            begin
+               if Is_Regular_File (Executable) then
+                  Delete ("", Executable);
+               end if;
+
+               Delete_Binder_Generated_Files (Get_Current_Dir, Source);
+            end;
+         end if;
+      end loop;
+   end Clean_Executables;
+
+   -------------------
+   -- Clean_Project --
+   -------------------
+
+   procedure Clean_Project (Project : Project_Id) is
+      Main_Source_File : File_Name_Type;
+      --  Name of the executable on the command line, without directory
+      --  information.
+
+      Executable : Name_Id;
+      --  Name of the executable file
+
+      Current_Dir : constant Dir_Name_Str := Get_Current_Dir;
+      Data        : constant Project_Data := Projects.Table (Project);
+      U_Data      : Prj.Com.Unit_Data;
+      File_Name1  : Name_Id;
+      File_Name2  : Name_Id;
+
+      use Prj.Com;
+
+   begin
+      --  Check that we don't specify executable on the command line for
+      --  a main library project.
+
+      if Project = Main_Project
+        and then Osint.Number_Of_Files /= 0
+        and then Data.Library
+      then
+         Osint.Fail
+           ("Cannot specify executable(s) for a Library Project File");
+      end if;
+
+      if Verbose_Mode then
+         Put ("Cleaning project """);
+         Put (Get_Name_String (Data.Name));
+         Put_Line ("""");
+      end if;
+
+      --  Add project to the list of proceesed projects
+
+      Processed_Projects.Increment_Last;
+      Processed_Projects.Table (Processed_Projects.Last) := Project;
+
+      if Data.Object_Directory /= No_Name then
+         declare
+            Obj_Dir : constant String :=
+                        Get_Name_String (Data.Object_Directory);
+
+         begin
+            Change_Dir (Obj_Dir);
+
+            --  Look through the units to find those that are either immediate
+            --  sources or inherited sources of the project.
+
+            for Unit in 1 .. Prj.Com.Units.Last loop
+               U_Data := Prj.Com.Units.Table (Unit);
+               File_Name1 := No_Name;
+               File_Name2 := No_Name;
+
+               --  If either the spec or the body is a source of the project,
+               --  check for the corresponding ALI file in the object
+               --  directory.
+
+               if In_Extension_Chain
+                 (U_Data.File_Names (Body_Part).Project, Project)
+                 or else
+                   In_Extension_Chain
+                     (U_Data.File_Names (Specification).Project, Project)
+               then
+                  File_Name1 := U_Data.File_Names (Body_Part).Name;
+                  File_Name2 := U_Data.File_Names (Specification).Name;
+
+                  --  If there is no body file name, then there may be only a
+                  --  spec.
+
+                  if File_Name1 = No_Name then
+                     File_Name1 := File_Name2;
+                     File_Name2 := No_Name;
+                  end if;
+               end if;
+
+               --  If there is either a spec or a body, look for files in the
+               --  object directory.
+
+               if File_Name1 /= No_Name then
+                  declare
+                     Asm : constant String := Assembly_File_Name (File_Name1);
+                     ALI : constant String := ALI_File_Name      (File_Name1);
+                     Obj : constant String := Object_File_Name   (File_Name1);
+                     Adt : constant String := Tree_File_Name     (File_Name1);
+                     Deb : constant String := Debug_File_Name    (File_Name1);
+                     Rep : constant String := Repinfo_File_Name  (File_Name1);
+                     Del : Boolean := True;
+
+                  begin
+                     --  If the ALI file exists and is read-only, no file is
+                     --  deleted.
+
+                     if Is_Regular_File (ALI) then
+                        if Is_Writable_File (ALI) then
+                           Delete (Obj_Dir, ALI);
+
+                        else
+                           Del := False;
+
+                           if Verbose_Mode then
+                              Put ('"');
+                              Put (Obj_Dir);
+
+                              if Obj_Dir (Obj_Dir'Last) /= Dir_Separator then
+                                 Put (Dir_Separator);
+                              end if;
+
+                              Put (ALI);
+                              Put_Line (""" is read-only");
+                           end if;
+                        end if;
+                     end if;
+
+                     if Del then
+
+                        --  Object file
+
+                        if Is_Regular_File (Obj) then
+                           Delete (Obj_Dir, Obj);
+                        end if;
+
+                        --  Assembly file
+
+                        if Is_Regular_File (Asm) then
+                           Delete (Obj_Dir, Asm);
+                        end if;
+
+                        --  Tree file
+
+                        if Is_Regular_File (Adt) then
+                           Delete (Obj_Dir, Adt);
+                        end if;
+
+                        --  First expanded source file
+
+                        if Is_Regular_File (Deb) then
+                           Delete (Obj_Dir, Deb);
+                        end if;
+
+                        --  Repinfo file
+
+                        if Is_Regular_File (Rep) then
+                           Delete (Obj_Dir, Rep);
+                        end if;
+
+                        --  Second expanded source file
+
+                        if File_Name2 /= No_Name then
+                           declare
+                              Deb : constant String :=
+                                      Debug_File_Name   (File_Name2);
+                              Rep : constant String :=
+                                      Repinfo_File_Name (File_Name2);
+                           begin
+                              if Is_Regular_File (Deb) then
+                                 Delete (Obj_Dir, Deb);
+                              end if;
+
+                              if Is_Regular_File (Rep) then
+                                 Delete (Obj_Dir, Rep);
+                              end if;
+                           end;
+                        end if;
+                     end if;
+                  end;
+               end if;
+            end loop;
+
+            if Verbose_Mode then
+               New_Line;
+            end if;
+         end;
+      end if;
+
+      --  If switch -r is specified, call Clean_Project recursively for the
+      --  imported projects and the project being extended.
+
+      if All_Projects then
+         declare
+            Imported : Project_List := Data.Imported_Projects;
+            Element  : Project_Element;
+            Process  : Boolean;
+
+         begin
+            --  For each imported project, call Clean_Project if the project
+            --  has not been processed already.
+
+            while Imported /= Empty_Project_List loop
+               Element := Project_Lists.Table (Imported);
+               Imported := Element.Next;
+               Process := True;
+
+               for
+                 J in Processed_Projects.First .. Processed_Projects.Last
+               loop
+                  if Element.Project = Processed_Projects.Table (J) then
+                     Process := False;
+                     exit;
+                  end if;
+               end loop;
+
+               if Process then
+                  Clean_Project (Element.Project);
+               end if;
+            end loop;
+
+            --  If this project extends another project, call Clean_Project for
+            --  the project being extended. It is guaranteed that it has not
+            --  called before, because no other project may import or extend
+            --  this project.
+
+            if Data.Extends /= No_Project then
+               Clean_Project (Data.Extends);
+            end if;
+         end;
+      end if;
+
+      --  If this is a library project, clean the library directory, the
+      --  interface copy dir and, for a Stand-Alone Library, the binder
+      --  generated files of the library.
+
+      --  The directories are cleaned only if switch -c is not specified.
+
+      if Data.Library then
+         if not Compile_Only then
+            Clean_Directory (Data.Library_Dir);
+
+            if Data.Library_Src_Dir /= No_Name
+              and then Data.Library_Src_Dir /= Data.Library_Dir
+            then
+               Clean_Directory (Data.Library_Src_Dir);
+            end if;
+         end if;
+
+         if Data.Standalone_Library and then
+            Data.Object_Directory /= No_Name
+         then
+            Delete_Binder_Generated_Files
+              (Get_Name_String (Data.Object_Directory), Data.Library_Name);
+         end if;
+
+         --  Otherwise, for the main project, delete the executables and the
+         --  binder generated files.
+
+         --  The executables are deleted only if switch -c is not specified.
+
+      elsif Project = Main_Project and then Data.Exec_Directory /= No_Name then
+         declare
+            Exec_Dir : constant String :=
+              Get_Name_String (Data.Exec_Directory);
+         begin
+            Change_Dir (Exec_Dir);
+
+            for N_File in 1 .. Osint.Number_Of_Files loop
+               Main_Source_File := Next_Main_Source;
+
+               if not Compile_Only then
+                  Executable := Executable_Of (Main_Project, Main_Source_File);
+
+                  if Is_Regular_File (Get_Name_String (Executable)) then
+                     Delete (Exec_Dir, Get_Name_String (Executable));
+                  end if;
+               end if;
+
+               if Data.Object_Directory /= No_Name then
+                  Delete_Binder_Generated_Files
+                    (Get_Name_String
+                       (Data.Object_Directory),
+                     Strip_Suffix (Main_Source_File));
+               end if;
+            end loop;
+         end;
+      end if;
+
+      --  Change back to previous directory
+
+      Change_Dir (Current_Dir);
+   end Clean_Project;
+
+   ---------------------
+   -- Debug_File_Name --
+   ---------------------
+
+   function Debug_File_Name (Source : Name_Id) return String is
+   begin
+      return Get_Name_String (Source) & Debug_Suffix;
+   end Debug_File_Name;
+
+   ------------
+   -- Delete --
+   ------------
+
+   procedure Delete (In_Directory : String; File : String) is
+      Full_Name : String (1 .. In_Directory'Length + File'Length + 1);
+      Last : Natural := 0;
+      Success : Boolean;
+
+   begin
+      --  Indicate that at least one file is deleted or is to be deleted
+
+      File_Deleted := True;
+
+      --  Build the path name of the file to delete
+
+      Last := In_Directory'Length;
+      Full_Name (1 .. Last) := In_Directory;
+
+      if Last > 0 and then Full_Name (Last) /= Directory_Separator then
+         Last := Last + 1;
+         Full_Name (Last) := Directory_Separator;
+      end if;
+
+      Full_Name (Last + 1 .. Last + File'Length) := File;
+      Last := Last + File'Length;
+
+      --  If switch -n was used, simply output the path name
+
+      if Do_Nothing then
+         Put_Line (Full_Name (1 .. Last));
+
+      --  Otherwise, delete the file
+
+      else
+         Delete_File (Full_Name (1 .. Last), Success);
+
+         if not Success then
+            Put ("Warning: """);
+            Put (Full_Name (1 .. Last));
+            Put_Line (""" could not be deleted");
+
+         elsif Verbose_Mode or else not Quiet_Output then
+            Put ("""");
+            Put (Full_Name (1 .. Last));
+            Put_Line (""" has been deleted");
+         end if;
+      end if;
+   end Delete;
+
+   -----------------------------------
+   -- Delete_Binder_Generated_Files --
+   -----------------------------------
+
+   procedure Delete_Binder_Generated_Files (Dir : String; Source : Name_Id) is
+      Source_Name : constant String := Get_Name_String (Source);
+      Current     : constant String := Get_Current_Dir;
+      Last        : constant Positive := B_Start'Length + Source_Name'Length;
+      File_Name   : String (1 .. Last + 4);
+
+   begin
+      Change_Dir (Dir);
+
+      --  Build the file name (before the extension)
+
+      File_Name (1 .. B_Start'Length) := B_Start;
+      File_Name (B_Start'Length + 1 .. Last) := Source_Name;
+
+      --  Spec
+
+      File_Name (Last + 1 .. Last + 4) := ".ads";
+
+      if Is_Regular_File (File_Name (1 .. Last + 4)) then
+         Delete (Dir, File_Name (1 .. Last + 4));
+      end if;
+
+      --  Body
+
+      File_Name (Last + 1 .. Last + 4) := ".adb";
+
+      if Is_Regular_File (File_Name (1 .. Last + 4)) then
+         Delete (Dir, File_Name (1 .. Last + 4));
+      end if;
+
+      --  ALI file
+
+      File_Name (Last + 1 .. Last + 4) := ".ali";
+
+      if Is_Regular_File (File_Name (1 .. Last + 4)) then
+         Delete (Dir, File_Name (1 .. Last + 4));
+      end if;
+
+      --  Object file
+
+      File_Name (Last + 1 .. Last + Object_Suffix'Length) := Object_Suffix;
+
+      if Is_Regular_File (File_Name (1 .. Last + Object_Suffix'Length)) then
+         Delete (Dir, File_Name (1 .. Last + Object_Suffix'Length));
+      end if;
+
+      --  Change back to previous directory
+
+      Change_Dir (Current);
+   end Delete_Binder_Generated_Files;
+
+   -----------------------
+   -- Display_Copyright --
+   -----------------------
+
+   procedure Display_Copyright is
+   begin
+      if not Copyright_Displayed then
+         Copyright_Displayed := True;
+         Put_Line ("GNATCLEAN " & Gnatvsn.Gnat_Version_String
+                   & " Copyright 2003 Free Software Foundation, Inc.");
+      end if;
+   end Display_Copyright;
+
+   -------------
+   -- Empty_Q --
+   -------------
+
+   function Empty_Q return Boolean is
+   begin
+      return Q_Front >= Q.Last;
+   end Empty_Q;
+
+   --------------------
+   -- Extract_From_Q --
+   --------------------
+
+   procedure Extract_From_Q (Source_File : out File_Name_Type) is
+      File : constant File_Name_Type := Q.Table (Q_Front);
+
+   begin
+      Q_Front := Q_Front + 1;
+      Source_File := File;
+   end Extract_From_Q;
+
+   ---------------
+   -- Gnatclean --
+   ---------------
+
+   procedure Gnatclean is
+   begin
+      --  Do the necessary initializations
+
+      Initialize;
+
+      --  Parse the command line, getting the switches and the executable names
+
+      Parse_Cmd_Line;
+
+      if Verbose_Mode then
+         Display_Copyright;
+      end if;
+
+      if Project_File_Name /= null then
+
+         --  A project file was specified by a -P switch
+
+         if Opt.Verbose_Mode then
+            New_Line;
+            Put ("Parsing Project File """);
+            Put (Project_File_Name.all);
+            Put_Line (""".");
+            New_Line;
+         end if;
+
+         --  Set the project parsing verbosity to whatever was specified
+         --  by a possible -vP switch.
+
+         Prj.Pars.Set_Verbosity (To => Prj.Com.Current_Verbosity);
+
+         --  Parse the project file.
+         --  If there is an error, Main_Project will still be No_Project.
+
+         Prj.Pars.Parse
+           (Project           => Main_Project,
+            Project_File_Name => Project_File_Name.all,
+            Packages_To_Check => Packages_To_Check_By_Gnatmake);
+
+         if Main_Project = No_Project then
+            Fail ("""" & Project_File_Name.all &
+                  """ processing failed");
+         end if;
+
+         if Opt.Verbose_Mode then
+            New_Line;
+            Put ("Parsing of Project File """);
+            Put (Project_File_Name.all);
+            Put (""" is finished.");
+            New_Line;
+         end if;
+
+         --  We add the source directories and the object directories
+         --  to the search paths.
+
+         Add_Source_Directories (Main_Project);
+         Add_Object_Directories (Main_Project);
+
+      end if;
+
+      Osint.Add_Default_Search_Dirs;
+
+      --  If a project file was specified, but no executable name, put all
+      --  the mains of the project file (if any) as if there were on the
+      --  command line.
+
+      if Main_Project /= No_Project and then Osint.Number_Of_Files = 0 then
+         declare
+            Value : String_List_Id := Projects.Table (Main_Project).Mains;
+
+         begin
+            while Value /= Prj.Nil_String loop
+               Get_Name_String (String_Elements.Table (Value).Value);
+               Osint.Add_File (Name_Buffer (1 .. Name_Len));
+               Value := String_Elements.Table (Value).Next;
+            end loop;
+         end;
+      end if;
+
+      --  If neither a project file nor an executable were specified,
+      --  output the usage and exit.
+
+      if Main_Project = No_Project and then Osint.Number_Of_Files = 0 then
+         Usage;
+         return;
+      end if;
+
+      if Verbose_Mode then
+         New_Line;
+      end if;
+
+      if Main_Project /= No_Project then
+
+         --  If a project file has been specified, call Clean_Project with the
+         --  project id of this project file, after resetting the list of
+         --  processed projects.
+
+         Processed_Projects.Init;
+         Clean_Project (Main_Project);
+
+      else
+         --  If no project file has been specified, the work is done in
+         --  Clean_Executables.
+
+         Clean_Executables;
+      end if;
+
+      --  In verbose mode, if Delete has not been called, indicate that
+      --  no file needs to be deleted.
+
+      if Verbose_Mode and (not File_Deleted) then
+         New_Line;
+
+         if Do_Nothing then
+            Put_Line ("No file needs to be deleted");
+         else
+            Put_Line ("No file has been deleted");
+         end if;
+      end if;
+   end Gnatclean;
+
+   ------------------------
+   -- In_Extension_Chain --
+   ------------------------
+
+   function In_Extension_Chain
+     (Of_Project : Project_Id;
+      Prj        : Project_Id) return Boolean
+   is
+      Data : Project_Data;
+
+   begin
+      if Of_Project = Prj then
+         return True;
+      end if;
+
+      Data := Projects.Table (Of_Project);
+
+      while Data.Extends /= No_Project loop
+         if Data.Extends = Prj then
+            return True;
+         end if;
+
+         Data := Projects.Table (Data.Extends);
+      end loop;
+
+      Data := Projects.Table (Prj);
+
+      while Data.Extends /= No_Project loop
+         if Data.Extends = Of_Project then
+            return True;
+         end if;
+
+         Data := Projects.Table (Data.Extends);
+      end loop;
+
+      return False;
+   end In_Extension_Chain;
+
+   ------------
+   -- Init_Q --
+   ------------
+
+   procedure Init_Q is
+   begin
+      Q_Front := Q.First;
+      Q.Set_Last (Q.First);
+   end Init_Q;
+
+   ----------------
+   -- Initialize --
+   ----------------
+
+   procedure Initialize is
+   begin
+      if not Initialized then
+         Initialized := True;
+
+         --  Initialize some packages
+
+         Csets.Initialize;
+         Namet.Initialize;
+         Snames.Initialize;
+         Prj.Initialize;
+      end if;
+
+      --  Reset global variables
+
+      Free (Object_Directory_Path);
+      Do_Nothing := False;
+      File_Deleted := False;
+      Copyright_Displayed := False;
+      Usage_Displayed := False;
+      Free (Project_File_Name);
+      Main_Project := Prj.No_Project;
+      All_Projects := False;
+   end Initialize;
+
+   --------------
+   -- Insert_Q --
+   --------------
+
+   procedure Insert_Q
+     (Source_File : File_Name_Type)
+   is
+   begin
+      --  Do not insert an empty name or an already marked source
+
+      if Source_File /= No_Name
+        and then Get_Name_Table_Byte (Source_File) = 0
+      then
+         Q.Table (Q.Last) := Source_File;
+         Q.Increment_Last;
+
+         --  Mark the source that has been just added to the Q
+
+         Set_Name_Table_Byte (Source_File, 1);
+      end if;
+   end Insert_Q;
+
+   ----------------------
+   -- Object_File_Name --
+   ----------------------
+
+   function Object_File_Name (Source : Name_Id) return String is
+      Src : constant String := Get_Name_String (Source);
+   begin
+      --  If the source name has an extension, then replace it with
+      --  the Object suffix.
+
+      for Index in reverse Src'First + 1 .. Src'Last loop
+         if Src (Index) = '.' then
+            return Src (Src'First .. Index - 1) & Object_Suffix;
+         end if;
+      end loop;
+
+      --  If there is no dot, or if it is the first character, just add the
+      --  ALI suffix.
+
+      return Src & Object_Suffix;
+   end Object_File_Name;
+
+   --------------------
+   -- Parse_Cmd_Line --
+   --------------------
+
+   procedure Parse_Cmd_Line is
+   begin
+      loop
+         case
+           GNAT.Command_Line.Getopt
+             ("aO: c D: F h I: I- n P: q r v vP0 vP1 vP2 X:")
+         is
+            when ASCII.NUL =>
+               exit;
+
+            when 'a' =>
+               Add_Lib_Search_Dir (GNAT.Command_Line.Parameter);
+
+            when 'c'    =>
+               Compile_Only := True;
+
+            when 'D'    =>
+               declare
+                  Dir : constant String := GNAT.Command_Line.Parameter;
+
+               begin
+                  if Object_Directory_Path /= null then
+                     Fail ("duplicate -D switch");
+
+                  elsif Project_File_Name /= null then
+                     Fail ("-P and -D cannot be used simultaneously");
+
+                  elsif not Is_Directory (Dir) then
+                     Fail (Dir, " is not a directory");
+
+                  else
+                     Add_Lib_Search_Dir (Dir);
+                  end if;
+               end;
+
+            when 'F' =>
+               Full_Path_Name_For_Brief_Errors := True;
+
+            when 'h' =>
+               Usage;
+
+            when 'I' =>
+               if Full_Switch = "I-" then
+                  Opt.Look_In_Primary_Dir := False;
+
+               else
+                  Add_Lib_Search_Dir (GNAT.Command_Line.Parameter);
+               end if;
+
+            when 'n' =>
+               Do_Nothing := True;
+
+            when 'P' =>
+               if Project_File_Name /= null then
+                  Fail ("multiple -P switches");
+
+               elsif Object_Directory_Path /= null then
+                  Fail ("-D and -P cannot be used simultaneously");
+
+               else
+                  declare
+                     Prj : constant String := GNAT.Command_Line.Parameter;
+                  begin
+                     if Prj'Length > 1 and then Prj (Prj'First) = '=' then
+                        Project_File_Name :=
+                          new String'(Prj (Prj'First + 1 ..  Prj'Last));
+
+                     else
+                        Project_File_Name := new String'(Prj);
+                     end if;
+                  end;
+               end if;
+
+            when 'q' =>
+               Quiet_Output := True;
+
+            when 'r' =>
+               All_Projects := True;
+
+            when 'v' =>
+               if Full_Switch = "v" then
+                  Verbose_Mode := True;
+
+               elsif Full_Switch = "vP0" then
+                  Prj.Com.Current_Verbosity := Prj.Default;
+
+               elsif Full_Switch = "vP1" then
+                  Prj.Com.Current_Verbosity := Prj.Medium;
+
+               else
+                  Prj.Com.Current_Verbosity := Prj.High;
+               end if;
+
+            when 'X' =>
+               declare
+                  Ext_Asgn  : constant String := GNAT.Command_Line.Parameter;
+                  Start     : Positive := Ext_Asgn'First;
+                  Stop      : Natural  := Ext_Asgn'Last;
+                  Equal_Pos : Natural;
+                  OK        : Boolean  := True;
+
+               begin
+                  if Ext_Asgn (Start) = '"' then
+                     if Ext_Asgn (Stop) = '"' then
+                        Start := Start + 1;
+                        Stop  := Stop - 1;
+
+                     else
+                        OK := False;
+                     end if;
+                  end if;
+
+                  Equal_Pos := Start;
+
+                  while Equal_Pos <= Stop and then
+                        Ext_Asgn (Equal_Pos) /= '='
+                  loop
+                     Equal_Pos := Equal_Pos + 1;
+                  end loop;
+
+                  if Equal_Pos = Start or else Equal_Pos > Stop then
+                     OK := False;
+                  end if;
+
+                  if OK then
+                     Prj.Ext.Add
+                       (External_Name => Ext_Asgn (Start .. Equal_Pos - 1),
+                        Value         => Ext_Asgn (Equal_Pos + 1 .. Stop));
+
+                  else
+                     Fail ("illegal external assignment '", Ext_Asgn, "'");
+                  end if;
+               end;
+
+            when others =>
+               Fail ("INTERNAL ERROR, please report");
+         end case;
+      end loop;
+
+      --  Get the file names
+
+      loop
+         declare
+            S : constant String := GNAT.Command_Line.Get_Argument;
+
+         begin
+            exit when S'Length = 0;
+
+            Add_File (S);
+         end;
+      end loop;
+
+   exception
+      when GNAT.Command_Line.Invalid_Switch =>
+         Usage;
+         Fail ("invalid switch : "& GNAT.Command_Line.Full_Switch);
+
+      when GNAT.Command_Line.Invalid_Parameter =>
+         Usage;
+         Fail ("parameter missing for : " & GNAT.Command_Line.Full_Switch);
+   end Parse_Cmd_Line;
+
+   -----------------------
+   -- Repinfo_File_Name --
+   -----------------------
+
+   function Repinfo_File_Name (Source : Name_Id) return String is
+   begin
+      return Get_Name_String (Source) & Repinfo_Suffix;
+   end Repinfo_File_Name;
+
+   --------------------
+   -- Tree_File_Name --
+   --------------------
+
+   function Tree_File_Name (Source : Name_Id) return String is
+      Src : constant String := Get_Name_String (Source);
+
+   begin
+      --  If the source name has an extension, then replace it with
+      --  the tree suffix.
+
+      for Index in reverse Src'First + 1 .. Src'Last loop
+         if Src (Index) = '.' then
+            return Src (Src'First .. Index - 1) & Tree_Suffix;
+         end if;
+      end loop;
+
+      --  If there is no dot, or if it is the first character, just add the
+      --  tree suffix.
+
+      return Src & Tree_Suffix;
+   end Tree_File_Name;
+
+   -----------
+   -- Usage --
+   -----------
+
+   procedure Usage is
+   begin
+      if not Usage_Displayed then
+         Usage_Displayed := True;
+         Display_Copyright;
+         Put_Line ("Usage: gnatclean [switches] names");
+         New_Line;
+
+         Put_Line ("  names is one or more file names from which " &
+                   "the .adb or .ads suffix may be omitted");
+         Put_Line ("  names may be omitted if -P<project> is specified");
+         New_Line;
+
+         Put_Line ("  -c       Only delete compiler generated files");
+         Put_Line ("  -D dir   Specify dir as the object library");
+         Put_Line ("  -F       Full project path name " &
+                   "in brief error messages");
+         Put_Line ("  -h       Display this message");
+         Put_Line ("  -n       Nothing to do: only list files to delete");
+         Put_Line ("  -Pproj   Use GNAT Project File proj");
+         Put_Line ("  -q       Be quiet/terse");
+         Put_Line ("  -r       Clean all projects recursively");
+         Put_Line ("  -v       Verbose mode");
+         Put_Line ("  -vPx     Specify verbosity when parsing " &
+                   "GNAT Project Files");
+         Put_Line ("  -Xnm=val Specify an external reference " &
+                   "for GNAT Project Files");
+         New_Line;
+
+         Put_Line ("  -aOdir   Specify ALI/object files search path");
+         Put_Line ("  -Idir    Like -aOdir");
+         Put_Line ("  -I-      Don't look for source/library files " &
+                   "in the default directory");
+         New_Line;
+      end if;
+   end Usage;
+
+begin
+   if Hostparm.OpenVMS then
+      Debug_Suffix (Debug_Suffix'First) := '_';
+      Repinfo_Suffix (Repinfo_Suffix'First) := '_';
+      B_Start (B_Start'Last) := '$';
+   end if;
+end Clean;