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, 284 insertions, 96 deletions

diff --git a/gcc/ada/switch-c.adb b/gcc/ada/switch-c.adb
index 4052db70d03..c76c4a1af55 100644
--- a/gcc/ada/switch-c.adb
+++ b/gcc/ada/switch-c.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---          Copyright (C) 2001-2002 Free Software Foundation, Inc.          --
+--          Copyright (C) 2001-2003 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- --
@@ -24,10 +24,13 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
+with GNAT.OS_Lib; use GNAT.OS_Lib;
+
 with Debug;    use Debug;
 with Lib;      use Lib;
 with Osint;    use Osint;
 with Opt;      use Opt;
+with Prepcomp; use Prepcomp;
 with Types;    use Types;
 with Validsw;  use Validsw;
 with Stylesw;  use Stylesw;
@@ -36,6 +39,9 @@ with System.WCh_Con; use System.WCh_Con;
 
 package body Switch.C is
 
+   RTS_Specified : String_Access := null;
+   --  Used to detect multiple use of --RTS= flag
+
    -----------------------------
    -- Scan_Front_End_Switches --
    -----------------------------
@@ -50,6 +56,7 @@ package body Switch.C is
       Ptr : Integer := Switch_Chars'First;
       Max : constant Integer := Switch_Chars'Last;
       C   : Character := ' ';
+      Dot : Boolean;
 
       Store_Switch : Boolean  := True;
       First_Char   : Integer  := Ptr;
@@ -88,6 +95,7 @@ package body Switch.C is
          case Switch_Starts_With_Gnat is
 
             when False =>
+
             --  There are only two front-end switches that
             --  do not start with -gnat, namely -I and --RTS
 
@@ -113,49 +121,70 @@ package body Switch.C is
 
                --  Processing of the --RTS switch. --RTS has been modified by
                --  gcc and is now of the form -fRTS
-               elsif Ptr + 3 <= Max and then
-                 Switch_Chars (Ptr .. Ptr + 3) = "fRTS"
+
+               elsif Ptr + 3 <= Max
+                 and then Switch_Chars (Ptr .. Ptr + 3) = "fRTS"
                then
                   Ptr := Ptr + 1;
 
-                  if Ptr + 4 > Max or else Switch_Chars (Ptr + 3) /= '=' then
+                  if Ptr + 4 > Max
+                    or else Switch_Chars (Ptr + 3) /= '='
+                  then
                      Osint.Fail ("missing path for --RTS");
                   else
+                     --  Check that this is the first time --RTS is specified
+                     --  or if it is not the first time, the same path has
+                     --  been specified.
+
+                     if RTS_Specified = null then
+                        RTS_Specified :=
+                          new String'(Switch_Chars (Ptr + 4 .. Max));
+
+                     elsif
+                       RTS_Specified.all /= Switch_Chars (Ptr + 4 .. Max)
+                     then
+                        Osint.Fail
+                          ("--RTS cannot be specified multiple times");
+                     end if;
+
+                     --  Valid --RTS switch
 
-                     --  valid --RTS switch
                      Opt.No_Stdinc := True;
                      Opt.RTS_Switch := True;
 
-                     declare
-                        Src_Path_Name : String_Ptr := Get_RTS_Search_Dir
-                          (Switch_Chars (Ptr + 4 .. Max), Include);
-                        Lib_Path_Name : String_Ptr := Get_RTS_Search_Dir
-                          (Switch_Chars (Ptr + 4 .. Max), Objects);
-                     begin
-                        if Src_Path_Name /= null and then
-                          Lib_Path_Name /= null
-                        then
-                           Add_Search_Dirs (Src_Path_Name, Include);
-                           Add_Search_Dirs (Lib_Path_Name, Objects);
-                           Ptr := Max + 1;
-                        elsif  Src_Path_Name = null
-                          and Lib_Path_Name = null then
-                           Osint.Fail ("RTS path not valid: missing " &
-                                       "adainclude and adalib directories");
-                        elsif Src_Path_Name = null then
-                           Osint.Fail ("RTS path not valid: missing " &
-                                       "adainclude directory");
-                        elsif  Lib_Path_Name = null then
-                           Osint.Fail ("RTS path not valid: missing " &
-                                       "adalib directory");
-                        end if;
-                     end;
+                     RTS_Src_Path_Name := Get_RTS_Search_Dir
+                                            (Switch_Chars (Ptr + 4 .. Max),
+                                             Include);
+                     RTS_Lib_Path_Name := Get_RTS_Search_Dir
+                                            (Switch_Chars (Ptr + 4 .. Max),
+                                             Objects);
+
+                     if RTS_Src_Path_Name /= null and then
+                        RTS_Lib_Path_Name /= null
+                     then
+                        Ptr := Max + 1;
+
+                     elsif RTS_Src_Path_Name = null and then
+                           RTS_Lib_Path_Name = null
+                     then
+                        Osint.Fail ("RTS path not valid: missing " &
+                                    "adainclude and adalib directories");
+
+                     elsif RTS_Src_Path_Name = null then
+                        Osint.Fail ("RTS path not valid: missing " &
+                                    "adainclude directory");
+
+                     elsif RTS_Lib_Path_Name = null then
+                        Osint.Fail ("RTS path not valid: missing " &
+                                    "adalib directory");
+                     end if;
                   end if;
                else
                   raise Bad_Switch;
                end if;
 
          when True =>
+
             --  Process -gnat* options
 
             case C is
@@ -181,23 +210,19 @@ package body Switch.C is
             when 'c' =>
                if not First_Switch then
                   Osint.Fail
-                    ("-gnatc myust be first if combined with other switches");
+                    ("-gnatc must be first if combined with other switches");
                end if;
 
                Ptr := Ptr + 1;
                Operating_Mode := Check_Semantics;
 
-            --  Processing for C switch
-
-            when 'C' =>
-               Ptr := Ptr + 1;
-               Compress_Debug_Names := True;
-
             --  Processing for d switch
 
             when 'd' =>
                Store_Switch := False;
                Storing (First_Stored) := 'd';
+               Dot := False;
+
                --  Note: for the debug switch, the remaining characters in this
                --  switch field must all be debug flags, since all valid switch
                --  characters are also valid debug characters.
@@ -213,10 +238,23 @@ package body Switch.C is
                      C in 'a' .. 'z' or else
                      C in 'A' .. 'Z'
                   then
-                     Set_Debug_Flag (C);
-                     Storing (First_Stored + 1) := C;
-                     Store_Compilation_Switch
-                       (Storing (Storing'First .. First_Stored + 1));
+                     if Dot then
+                        Set_Dotted_Debug_Flag (C);
+                        Storing (First_Stored + 1) := '.';
+                        Storing (First_Stored + 2) := C;
+                        Store_Compilation_Switch
+                          (Storing (Storing'First .. First_Stored + 2));
+                        Dot := False;
+
+                     else
+                        Set_Debug_Flag (C);
+                        Storing (First_Stored + 1) := C;
+                        Store_Compilation_Switch
+                          (Storing (Storing'First .. First_Stored + 1));
+                     end if;
+
+                  elsif C = '.' then
+                     Dot := True;
 
                   else
                      raise Bad_Switch;
@@ -249,6 +287,8 @@ package body Switch.C is
             --  Processing for e switch
 
             when 'e' =>
+               --  Only -gnateD and -gnatep= are stored
+
                Ptr := Ptr + 1;
 
                if Ptr > Max then
@@ -263,21 +303,93 @@ package body Switch.C is
                      Store_Switch := False;
                      Ptr := Ptr + 1;
 
+                     --  There may be an equal sign between -gnatec and
+                     --  the path name of the config file.
+
+                     if Ptr <= Max and then Switch_Chars (Ptr) = '=' then
+                        Ptr := Ptr + 1;
+                     end if;
+
                      if Ptr > Max then
                         raise Bad_Switch;
                      end if;
 
-                     Config_File_Name :=
-                        new String'(Switch_Chars (Ptr .. Max));
+                     declare
+                        Config_File_Name : constant String_Access :=
+                                             new String'
+                                                  (Switch_Chars (Ptr .. Max));
+
+                     begin
+                        if Config_File_Names = null then
+                           Config_File_Names :=
+                             new String_List'(1 => Config_File_Name);
+
+                        else
+                           declare
+                              New_Names : constant String_List_Access :=
+                                            new String_List
+                                              (1 ..
+                                               Config_File_Names'Length + 1);
+
+                           begin
+                              for Index in Config_File_Names'Range loop
+                                 New_Names (Index) :=
+                                   Config_File_Names (Index);
+                                 Config_File_Names (Index) := null;
+                              end loop;
+
+                              New_Names (New_Names'Last) := Config_File_Name;
+                              Free (Config_File_Names);
+                              Config_File_Names := New_Names;
+                           end;
+                        end if;
+                     end;
 
                      return;
 
+                  --  Symbol definition
+
+                  when 'D' =>
+                     Store_Switch := False;
+                     Ptr := Ptr + 1;
+
+                     if Ptr > Max then
+                        raise Bad_Switch;
+                     end if;
+
+                     Add_Symbol_Definition (Switch_Chars (Ptr .. Max));
+
+                     --  Store the switch
+
+                     Storing (First_Stored .. First_Stored + 1) := "eD";
+                     Storing
+                       (First_Stored + 2 .. First_Stored + Max - Ptr + 2) :=
+                       Switch_Chars (Ptr .. Max);
+                     Store_Compilation_Switch (Storing
+                              (Storing'First .. First_Stored + Max - Ptr + 2));
+                     return;
+
+                  --  Full source path for brief error messages
+
+                  when 'f' =>
+                     Store_Switch := False;
+                     Ptr := Ptr + 1;
+                     Full_Path_Name_For_Brief_Errors := True;
+                     return;
+
                   --  Mapping file
 
                   when 'm' =>
                      Store_Switch := False;
                      Ptr := Ptr + 1;
 
+                     --  There may be an equal sign between -gnatem and
+                     --  the path name of the mapping file.
+
+                     if Ptr <= Max and then Switch_Chars (Ptr) = '=' then
+                        Ptr := Ptr + 1;
+                     end if;
+
                      if Ptr > Max then
                         raise Bad_Switch;
                      end if;
@@ -286,6 +398,43 @@ package body Switch.C is
                        new String'(Switch_Chars (Ptr .. Max));
                      return;
 
+                  --  Preprocessing data file
+
+                  when 'p' =>
+                     Store_Switch := False;
+                     Ptr := Ptr + 1;
+
+                     --  There may be an equal sign between -gnatep and
+                     --  the path name of the mapping file.
+
+                     if Ptr <= Max and then Switch_Chars (Ptr) = '=' then
+                        Ptr := Ptr + 1;
+                     end if;
+
+                     if Ptr > Max then
+                        raise Bad_Switch;
+                     end if;
+
+                     Preprocessing_Data_File :=
+                       new String'(Switch_Chars (Ptr .. Max));
+
+                     --  Store the switch.
+                     --  Because we may store a longer switch (we normalize
+                     --  to -gnatep=), use a local variable.
+
+                     declare
+                        To_Store : String
+                          (1 .. Preprocessing_Data_File'Length + 8);
+
+                     begin
+                        To_Store (1 .. 8) := "-gnatep=";
+                        To_Store (9 .. Preprocessing_Data_File'Length + 8) :=
+                          Preprocessing_Data_File.all;
+                        Store_Compilation_Switch (To_Store);
+                     end;
+
+                     return;
+
                   when others =>
                      raise Bad_Switch;
                end case;
@@ -313,11 +462,13 @@ package body Switch.C is
 
             when 'g' =>
                Ptr := Ptr + 1;
-               GNAT_Mode                := True;
-               Identifier_Character_Set := 'n';
-               Warning_Mode             := Treat_As_Error;
-               Check_Unreferenced       := True;
-               Check_Withs              := True;
+               GNAT_Mode                  := True;
+               Identifier_Character_Set   := 'n';
+               Warning_Mode               := Treat_As_Error;
+               Check_Unreferenced         := True;
+               Check_Withs                := True;
+               Check_Unreferenced_Formals := True;
+               System_Extend_Unit         := Empty;
 
                Set_Default_Style_Check_Options;
 
@@ -406,12 +557,13 @@ package body Switch.C is
 
             when 'o' =>
                Ptr := Ptr + 1;
-               Suppress_Options.Overflow_Checks := False;
+               Suppress_Options (Overflow_Check) := False;
                Opt.Enable_Overflow_Checks := True;
 
             --  Processing for O switch
 
             when 'O' =>
+               Store_Switch := False;
                Ptr := Ptr + 1;
                Output_File_Name_Present := True;
 
@@ -419,20 +571,9 @@ package body Switch.C is
 
             when 'p' =>
                Ptr := Ptr + 1;
-               Suppress_Options.Access_Checks        := True;
-               Suppress_Options.Accessibility_Checks := True;
-               Suppress_Options.Discriminant_Checks  := True;
-               Suppress_Options.Division_Checks      := True;
-               Suppress_Options.Elaboration_Checks   := True;
-               Suppress_Options.Index_Checks         := True;
-               Suppress_Options.Length_Checks        := True;
-               Suppress_Options.Overflow_Checks      := True;
-               Suppress_Options.Range_Checks         := True;
-               Suppress_Options.Storage_Checks       := True;
-               Suppress_Options.Tag_Checks           := True;
-
-               Validity_Checks_On := False;
-               Opt.Suppress_Checks := True;
+               Suppress_Options           := (others => True);
+               Validity_Checks_On         := False;
+               Opt.Suppress_Checks        := True;
                Opt.Enable_Overflow_Checks := False;
 
             --  Processing for P switch
@@ -459,38 +600,34 @@ package body Switch.C is
             when 'R' =>
                Ptr := Ptr + 1;
                Back_Annotate_Rep_Info := True;
+               List_Representation_Info := 1;
 
-               if Ptr <= Max
-                 and then Switch_Chars (Ptr) in '0' .. '9'
-               then
+               while Ptr <= Max loop
                   C := Switch_Chars (Ptr);
 
-                  if C in '4' .. '9' then
-                     raise Bad_Switch;
-                  else
+                  if C in '1' .. '3' then
                      List_Representation_Info :=
                        Character'Pos (C) - Character'Pos ('0');
-                     Ptr := Ptr + 1;
-                  end if;
 
-                  if Ptr <= Max and then Switch_Chars (Ptr) = 's' then
-                     Ptr := Ptr + 1;
+                  elsif Switch_Chars (Ptr) = 's' then
+                     List_Representation_Info_To_File := True;
 
-                     if List_Representation_Info /= 0 then
-                        List_Representation_Info_To_File := True;
-                     end if;
+                  elsif Switch_Chars (Ptr) = 'm' then
+                     List_Representation_Info_Mechanisms := True;
+
+                  else
+                     raise Bad_Switch;
                   end if;
 
-               else
-                  List_Representation_Info := 1;
-               end if;
+                  Ptr := Ptr + 1;
+               end loop;
 
             --  Processing for s switch
 
             when 's' =>
                if not First_Switch then
                   Osint.Fail
-                    ("-gnats myust be first if combined with other switches");
+                    ("-gnats must be first if combined with other switches");
                end if;
 
                Ptr := Ptr + 1;
@@ -501,6 +638,7 @@ package body Switch.C is
             when 't' =>
                Ptr := Ptr + 1;
                Tree_Output := True;
+               ASIS_Mode := True;
                Back_Annotate_Rep_Info := True;
 
             --  Processing for T switch
@@ -575,35 +713,40 @@ package body Switch.C is
                   C := Switch_Chars (Ptr);
 
                   case C is
-
                      when 'a' =>
-                        Constant_Condition_Warnings     := True;
-                        Elab_Warnings                   := True;
                         Check_Unreferenced              := True;
-                        Check_Withs                     := True;
                         Check_Unreferenced_Formals      := True;
+                        Check_Withs                     := True;
+                        Constant_Condition_Warnings     := True;
                         Implementation_Unit_Warnings    := True;
                         Ineffective_Inline_Warnings     := True;
+                        Warn_On_Constant                := True;
+                        Warn_On_Export_Import           := True;
+                        Warn_On_Modified_Unread         := True;
+                        Warn_On_No_Value_Assigned       := True;
+                        Warn_On_Obsolescent_Feature     := True;
                         Warn_On_Redundant_Constructs    := True;
+                        Warn_On_Unchecked_Conversion    := True;
+                        Warn_On_Unrecognized_Pragma     := True;
 
                      when 'A' =>
-                        Constant_Condition_Warnings     := False;
-                        Elab_Warnings                   := False;
                         Check_Unreferenced              := False;
-                        Check_Withs                     := False;
                         Check_Unreferenced_Formals      := False;
+                        Check_Withs                     := False;
+                        Constant_Condition_Warnings     := False;
+                        Elab_Warnings                   := False;
                         Implementation_Unit_Warnings    := False;
-                        Warn_On_Biased_Rounding         := False;
+                        Ineffective_Inline_Warnings     := False;
+                        Warn_On_Constant                := False;
                         Warn_On_Dereference             := False;
+                        Warn_On_Export_Import           := False;
                         Warn_On_Hiding                  := False;
+                        Warn_On_Modified_Unread         := False;
+                        Warn_On_No_Value_Assigned       := False;
+                        Warn_On_Obsolescent_Feature     := False;
                         Warn_On_Redundant_Constructs    := False;
-                        Ineffective_Inline_Warnings     := False;
-
-                     when 'b' =>
-                        Warn_On_Biased_Rounding         := True;
-
-                     when 'B' =>
-                        Warn_On_Biased_Rounding         := False;
+                        Warn_On_Unchecked_Conversion    := False;
+                        Warn_On_Unrecognized_Pragma     := False;
 
                      when 'c' =>
                         Constant_Condition_Warnings     := True;
@@ -626,6 +769,12 @@ package body Switch.C is
                      when 'F' =>
                         Check_Unreferenced_Formals      := False;
 
+                     when 'g' =>
+                        Warn_On_Unrecognized_Pragma     := True;
+
+                     when 'G' =>
+                        Warn_On_Unrecognized_Pragma     := False;
+
                      when 'h' =>
                         Warn_On_Hiding                  := True;
 
@@ -638,12 +787,33 @@ package body Switch.C is
                      when 'I' =>
                         Implementation_Unit_Warnings    := False;
 
+                     when 'j' =>
+                        Warn_On_Obsolescent_Feature     := True;
+
+                     when 'J' =>
+                        Warn_On_Obsolescent_Feature     := False;
+
+                     when 'k' =>
+                        Warn_On_Constant                := True;
+
+                     when 'K' =>
+                        Warn_On_Constant                := False;
+
                      when 'l' =>
                         Elab_Warnings                   := True;
 
                      when 'L' =>
                         Elab_Warnings                   := False;
 
+                     when 'm' =>
+                        Warn_On_Modified_Unread         := True;
+
+                     when 'M' =>
+                        Warn_On_Modified_Unread         := False;
+
+                     when 'n' =>
+                        Warning_Mode                    := Normal;
+
                      when 'o' =>
                         Address_Clause_Overlay_Warnings := True;
 
@@ -675,6 +845,24 @@ package body Switch.C is
                         Check_Withs                     := False;
                         Check_Unreferenced_Formals      := False;
 
+                     when 'v' =>
+                        Warn_On_No_Value_Assigned       := True;
+
+                     when 'V' =>
+                        Warn_On_No_Value_Assigned       := False;
+
+                     when 'x' =>
+                        Warn_On_Export_Import           := True;
+
+                     when 'X' =>
+                        Warn_On_Export_Import           := False;
+
+                     when 'z' =>
+                        Warn_On_Unchecked_Conversion    := True;
+
+                     when 'Z' =>
+                        Warn_On_Unchecked_Conversion    := False;
+
                         --  Allow and ignore 'w' so that the old
                         --  format (e.g. -gnatwuwl) will work.
 
@@ -787,7 +975,7 @@ package body Switch.C is
             when 'z' =>
                Ptr := Ptr + 1;
 
-               --  Allowed for compiler, only if this is the only
+               --  Allowed for compiler only if this is the only
                --  -z switch, we do not allow multiple occurrences
 
                if Distribution_Stub_Mode = No_Stubs then
@@ -858,7 +1046,7 @@ package body Switch.C is
          Osint.Fail ("invalid switch: ", (1 => C));
 
       when Bad_Switch_Value =>
-         Osint.Fail ("numeric value too big for switch: ", (1 => C));
+         Osint.Fail ("numeric value out of range for switch: ", (1 => C));
 
       when Missing_Switch_Value =>
          Osint.Fail ("missing numeric value for switch: ", (1 => C));