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, 188 insertions, 118 deletions

diff --git a/gcc/ada/ali-util.adb b/gcc/ada/ali-util.adb
index e81edd7f694..2d5ed8d4ab8 100644
--- a/gcc/ada/ali-util.adb
+++ b/gcc/ada/ali-util.adb
@@ -24,17 +24,32 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
+with Debug;   use Debug;
 with Binderr; use Binderr;
+with Lib;     use Lib;
 with Namet;   use Namet;
 with Opt;     use Opt;
+with Output;  use Output;
 with Osint;   use Osint;
 
 with System.CRC32;
 with System.Memory;
-with System.Address_To_Access_Conversions;
 
 package body ALI.Util is
 
+   type Header_Num is range 0 .. 1_000;
+
+   function Hash (F : File_Name_Type) return Header_Num;
+   --  Function used to compute hash of ALI file name
+
+   package Interfaces is new Simple_HTable (
+     Header_Num => Header_Num,
+     Element    => Boolean,
+     No_Element => False,
+     Key        => File_Name_Type,
+     Hash       => Hash,
+     Equal      => "=");
+
    -----------------------
    -- Local Subprograms --
    -----------------------
@@ -87,20 +102,6 @@ package body ALI.Util is
       use ASCII;
       --  Make control characters visible
 
-      procedure Free_Source;
-      --  Free source file buffer
-
-      procedure Free_Source is
-
-         package SB is
-            new System.Address_To_Access_Conversions (Big_Source_Buffer);
-
-      begin
-         System.Memory.Free (SB.To_Address (SB.Object_Pointer (Src)));
-      end Free_Source;
-
-   --  Start of processing for Get_File_Checksum
-
    begin
       Read_Source_File (Fname, 0, Hi, Src);
 
@@ -127,7 +128,7 @@ package body ALI.Util is
 
             when EOF =>
                if Ptr = Hi then
-                  Free_Source;
+                  System.Memory.Free (Src.all'Address);
                   return Csum;
                else
                   Ptr := Ptr + 1;
@@ -259,11 +260,19 @@ package body ALI.Util is
 
    exception
       when Bad =>
-         Free_Source;
+         System.Memory.Free (Src.all'Address);
          return Checksum_Error;
-
    end Get_File_Checksum;
 
+   ----------
+   -- Hash --
+   ----------
+
+   function Hash (F : File_Name_Type) return Header_Num is
+   begin
+      return Header_Num (Int (F) rem Header_Num'Range_Length);
+   end Hash;
+
    ---------------------------
    -- Initialize_ALI_Source --
    ---------------------------
@@ -281,6 +290,7 @@ package body ALI.Util is
       end loop;
 
       Source.Init;
+      Interfaces.Reset;
    end Initialize_ALI_Source;
 
    -------------------------
@@ -302,26 +312,41 @@ package body ALI.Util is
       Idread : ALI_Id;
 
    begin
-      for I in ALIs.Table (Id).First_Unit .. ALIs.Table (Id).Last_Unit loop
-         for J in Units.Table (I).First_With .. Units.Table (I).Last_With loop
+      --  Process all dependent units
 
-            Afile := Withs.Table (J).Afile;
+      for U in ALIs.Table (Id).First_Unit .. ALIs.Table (Id).Last_Unit loop
+         for
+           W in Units.Table (U).First_With .. Units.Table (U).Last_With
+         loop
+            Afile := Withs.Table (W).Afile;
 
             --  Only process if not a generic (Afile /= No_File) and if
             --  file has not been processed already.
 
-            if Afile /= No_File and then Get_Name_Table_Info (Afile) = 0 then
-
+            if Afile /= No_File
+              and then Get_Name_Table_Info (Afile) = 0
+            then
                Text := Read_Library_Info (Afile);
 
+               --  Return with an error if source cannot be found and if this
+               --  is not a library generic (now we can, but does not have to
+               --  compile library generics)
+
                if Text = null then
-                  Error_Msg_Name_1 := Afile;
-                  Error_Msg_Name_2 := Withs.Table (J).Sfile;
-                  Error_Msg ("% not found, % must be compiled");
-                  Set_Name_Table_Info (Afile, Int (No_Unit_Id));
-                  return;
+                  if Generic_Separately_Compiled (Withs.Table (W).Sfile) then
+                     Error_Msg_Name_1 := Afile;
+                     Error_Msg_Name_2 := Withs.Table (W).Sfile;
+                     Error_Msg ("% not found, % must be compiled");
+                     Set_Name_Table_Info (Afile, Int (No_Unit_Id));
+                     return;
+
+                  else
+                     goto Skip_Library_Generics;
+                  end if;
                end if;
 
+               --  Enter in ALIs table
+
                Idread :=
                  Scan_ALI
                    (F         => Afile,
@@ -332,23 +357,46 @@ package body ALI.Util is
                Free (Text);
 
                if ALIs.Table (Idread).Compile_Errors then
-                  Error_Msg_Name_1 := Withs.Table (J).Sfile;
+                  Error_Msg_Name_1 := Withs.Table (W).Sfile;
                   Error_Msg ("% had errors, must be fixed, and recompiled");
                   Set_Name_Table_Info (Afile, Int (No_Unit_Id));
 
                elsif ALIs.Table (Idread).No_Object then
-                  Error_Msg_Name_1 := Withs.Table (J).Sfile;
+                  Error_Msg_Name_1 := Withs.Table (W).Sfile;
                   Error_Msg ("% must be recompiled");
                   Set_Name_Table_Info (Afile, Int (No_Unit_Id));
                end if;
 
-               --  Recurse to get new dependents
+               --  If the Unit is an Interface to a Stand-Alone Library,
+               --  set the Interface flag in the Withs table, so that its
+               --  dependant are not considered for elaboration order.
+
+               if ALIs.Table (Idread).Interface then
+                  Withs.Table (W).Interface := True;
+                  Interface_Library_Unit := True;
 
-               Read_ALI (Idread);
+                  --  Set the entry in the Interfaces hash table, so that other
+                  --  units that import this unit will set the flag in their
+                  --  entry in the Withs table.
+
+                  Interfaces.Set (Afile, True);
+
+               else
+                  --  Otherwise, recurse to get new dependents
+
+                  Read_ALI (Idread);
+               end if;
+
+               <<Skip_Library_Generics>> null;
+
+            --  If the ALI file has already been processed and is an interface,
+            --  set the flag in the entry of the Withs table.
+
+            elsif Interface_Library_Unit and then Interfaces.Get (Afile) then
+               Withs.Table (W).Interface := True;
             end if;
          end loop;
       end loop;
-
    end Read_ALI;
 
    ----------------------
@@ -366,118 +414,120 @@ package body ALI.Util is
       loop
          F := Sdep.Table (D).Sfile;
 
-         --  If this is the first time we are seeing this source file,
-         --  then make a new entry in the source table.
+         if F /= No_Name then
 
-         if Get_Name_Table_Info (F) = 0 then
-            Source.Increment_Last;
-            S := Source.Last;
-            Set_Name_Table_Info (F, Int (S));
-            Source.Table (S).Sfile := F;
-            Source.Table (S).All_Timestamps_Match := True;
+            --  If this is the first time we are seeing this source file,
+            --  then make a new entry in the source table.
 
-            --  Initialize checksum fields
+            if Get_Name_Table_Info (F) = 0 then
+               Source.Increment_Last;
+               S := Source.Last;
+               Set_Name_Table_Info (F, Int (S));
+               Source.Table (S).Sfile := F;
+               Source.Table (S).All_Timestamps_Match := True;
 
-            Source.Table (S).Checksum := Sdep.Table (D).Checksum;
-            Source.Table (S).All_Checksums_Match := True;
+               --  Initialize checksum fields
 
-            --  In check source files mode, try to get time stamp from file
+               Source.Table (S).Checksum := Sdep.Table (D).Checksum;
+               Source.Table (S).All_Checksums_Match := True;
 
-            if Opt.Check_Source_Files then
-               Stamp := Source_File_Stamp (F);
+               --  In check source files mode, try to get time stamp from file
 
-               --  If we got the stamp, then set the stamp in the source
-               --  table entry and mark it as set from the source so that
-               --  it does not get subsequently changed.
+               if Opt.Check_Source_Files then
+                  Stamp := Source_File_Stamp (F);
 
-               if Stamp (Stamp'First) /= ' ' then
-                  Source.Table (S).Stamp := Stamp;
-                  Source.Table (S).Source_Found := True;
+                  --  If we got the stamp, then set the stamp in the source
+                  --  table entry and mark it as set from the source so that
+                  --  it does not get subsequently changed.
 
-               --  If we could not find the file, then the stamp is set
-               --  from the dependency table entry (to be possibly reset
-               --  if we find a later stamp in subsequent processing)
+                  if Stamp (Stamp'First) /= ' ' then
+                     Source.Table (S).Stamp := Stamp;
+                     Source.Table (S).Source_Found := True;
 
-               else
-                  Source.Table (S).Stamp := Sdep.Table (D).Stamp;
-                  Source.Table (S).Source_Found := False;
+                  --  If we could not find the file, then the stamp is set
+                  --  from the dependency table entry (to be possibly reset
+                  --  if we find a later stamp in subsequent processing)
+
+                  else
+                     Source.Table (S).Stamp := Sdep.Table (D).Stamp;
+                     Source.Table (S).Source_Found := False;
 
-                  --  In All_Sources mode, flag error of file not found
+                     --  In All_Sources mode, flag error of file not found
 
-                  if Opt.All_Sources then
-                     Error_Msg_Name_1 := F;
-                     Error_Msg ("cannot locate %");
+                     if Opt.All_Sources then
+                        Error_Msg_Name_1 := F;
+                        Error_Msg ("cannot locate %");
+                     end if;
                   end if;
-               end if;
 
-            --  First time for this source file, but Check_Source_Files
-            --  is off, so simply initialize the stamp from the Sdep entry
+               --  First time for this source file, but Check_Source_Files
+               --  is off, so simply initialize the stamp from the Sdep entry
 
-            else
-               Source.Table (S).Source_Found := False;
-               Source.Table (S).Stamp := Sdep.Table (D).Stamp;
-            end if;
+               else
+                  Source.Table (S).Source_Found := False;
+                  Source.Table (S).Stamp := Sdep.Table (D).Stamp;
+               end if;
 
-         --  Here if this is not the first time for this source file,
-         --  so that the source table entry is already constructed.
+            --  Here if this is not the first time for this source file,
+            --  so that the source table entry is already constructed.
 
-         else
-            S := Source_Id (Get_Name_Table_Info (F));
+            else
+               S := Source_Id (Get_Name_Table_Info (F));
 
-            --  Update checksum flag
+               --  Update checksum flag
 
-            if not Checksums_Match
-                     (Sdep.Table (D).Checksum, Source.Table (S).Checksum)
-            then
-               Source.Table (S).All_Checksums_Match := False;
-            end if;
+               if not Checksums_Match
+                        (Sdep.Table (D).Checksum, Source.Table (S).Checksum)
+               then
+                  Source.Table (S).All_Checksums_Match := False;
+               end if;
 
-            --  Check for time stamp mismatch
+               --  Check for time stamp mismatch
 
-            if Sdep.Table (D).Stamp /= Source.Table (S).Stamp then
-               Source.Table (S).All_Timestamps_Match := False;
+               if Sdep.Table (D).Stamp /= Source.Table (S).Stamp then
+                  Source.Table (S).All_Timestamps_Match := False;
 
-               --  When we have a time stamp mismatch, we go look for the
-               --  source file even if Check_Source_Files is false, since
-               --  if we find it, then we can use it to resolve which of the
-               --  two timestamps in the ALI files is likely to be correct.
+                  --  When we have a time stamp mismatch, we go look for the
+                  --  source file even if Check_Source_Files is false, since
+                  --  if we find it, then we can use it to resolve which of the
+                  --  two timestamps in the ALI files is likely to be correct.
 
-               if not Check_Source_Files then
-                  Stamp := Source_File_Stamp (F);
+                  if not Check_Source_Files then
+                     Stamp := Source_File_Stamp (F);
 
-                  if Stamp (Stamp'First) /= ' ' then
-                     Source.Table (S).Stamp := Stamp;
-                     Source.Table (S).Source_Found := True;
+                     if Stamp (Stamp'First) /= ' ' then
+                        Source.Table (S).Stamp := Stamp;
+                        Source.Table (S).Source_Found := True;
+                     end if;
                   end if;
-               end if;
 
-               --  If the stamp in the source table entry was set from the
-               --  source file, then we do not change it (the stamp in the
-               --  source file is always taken as the "right" one).
+                  --  If the stamp in the source table entry was set from the
+                  --  source file, then we do not change it (the stamp in the
+                  --  source file is always taken as the "right" one).
 
-               if Source.Table (S).Source_Found then
-                  null;
+                  if Source.Table (S).Source_Found then
+                     null;
 
-               --  Otherwise, we have no source file available, so we guess
-               --  that the later of the two timestamps is the right one.
-               --  Note that this guess only affects which error messages
-               --  are issued later on, not correct functionality.
+                  --  Otherwise, we have no source file available, so we guess
+                  --  that the later of the two timestamps is the right one.
+                  --  Note that this guess only affects which error messages
+                  --  are issued later on, not correct functionality.
 
-               else
-                  if Sdep.Table (D).Stamp > Source.Table (S).Stamp then
-                     Source.Table (S).Stamp := Sdep.Table (D).Stamp;
+                  else
+                     if Sdep.Table (D).Stamp > Source.Table (S).Stamp then
+                        Source.Table (S).Stamp := Sdep.Table (D).Stamp;
+                     end if;
                   end if;
                end if;
             end if;
-         end if;
 
-         --  Set the checksum value in the source table
+            --  Set the checksum value in the source table
 
-         S := Source_Id (Get_Name_Table_Info (F));
-         Source.Table (S).Checksum := Sdep.Table (D).Checksum;
+            S := Source_Id (Get_Name_Table_Info (F));
+            Source.Table (S).Checksum := Sdep.Table (D).Checksum;
+         end if;
 
       end loop Sdep_Loop;
-
    end Set_Source_Table;
 
    ----------------------
@@ -489,14 +539,17 @@ package body ALI.Util is
       for A in ALIs.First .. ALIs.Last loop
          Set_Source_Table (A);
       end loop;
-
    end Set_Source_Table;
 
    -------------------------
    -- Time_Stamp_Mismatch --
    -------------------------
 
-   function Time_Stamp_Mismatch (A : ALI_Id) return File_Name_Type is
+   function Time_Stamp_Mismatch
+     (A         : ALI_Id;
+      Read_Only : Boolean := False)
+      return      File_Name_Type
+   is
       Src : Source_Id;
       --  Source file Id for the current Sdep entry
 
@@ -507,7 +560,6 @@ package body ALI.Util is
          if Opt.Minimal_Recompilation
            and then Sdep.Table (D).Stamp /= Source.Table (Src).Stamp
          then
-
             --  If minimal recompilation is in action, replace the stamp
             --  of the source file in the table if checksums match.
 
@@ -523,15 +575,33 @@ package body ALI.Util is
 
          end if;
 
-         if not Source.Table (Src).Source_Found
-           or else Sdep.Table (D).Stamp /= Source.Table (Src).Stamp
-         then
-            return Source.Table (Src).Sfile;
+         if (not Read_Only) or else Source.Table (Src).Source_Found then
+            if not Source.Table (Src).Source_Found
+              or else Sdep.Table (D).Stamp /= Source.Table (Src).Stamp
+            then
+               --  If -t debug flag set, output time stamp found/expected
+
+               if Source.Table (Src).Source_Found and Debug_Flag_T then
+                  Write_Str ("Source: """);
+                  Get_Name_String (Sdep.Table (D).Sfile);
+                  Write_Str (Name_Buffer (1 .. Name_Len));
+                  Write_Line ("""");
+
+                  Write_Str ("   time stamp expected: ");
+                  Write_Line (String (Sdep.Table (D).Stamp));
+
+                  Write_Str ("      time stamp found: ");
+                  Write_Line (String (Source.Table (Src).Stamp));
+               end if;
+
+               --  Return the source file
+
+               return Source.Table (Src).Sfile;
+            end if;
          end if;
       end loop;
 
       return No_File;
-
    end Time_Stamp_Mismatch;
 
 end ALI.Util;