Re: [HELP] GCC 4.1 branch Ada status on powerpc-darwin?

[Eric Botcazou <ebotcazou at adacore dot com>]

> Yes the workaround is to add -fexceptions or -shared-libgcc to the
> command line when linking libgnat but I don't know if that is the correct
> fix or some hacking to config/darwin.h is needed.

Thanks.  However, that's not sufficient because the tools fail to build too:

../../xgcc -B../../ -DIN_GCC   `echo -g -O2  -W -Wall -Wwrite-strings 
-Wstrict-prototypes -Wmissing-prototypes  |sed -e 's/-pedantic//g' -e 
's/-Wtraditional//g'`   -o ../../gnatmake b_gnatm.o a-except.o ctrl_c.o ali.o 
ali-util.o s-casuti.oalloc.o atree.o binderr.o butil.o casing.o csets.o 
debug.o elists.o einfo.o erroutc.o errutil.o err_vars.o fmap.o fname.o 
fname-uf.o fname-sf.o gnatmake.o gnatvsn.o hostparm.o interfac.o i-c.o 
i-cstrin.o krunch.o lib.o make.o makeusg.o makeutl.o mlib.o mlib-fil.o 
mlib-prj.o mlib-tgt.o mlib-utl.o namet.o nlists.o opt.oosint.o osint-m.o 
output.o prj.o prj-attr.o prj-attr-pm.o prj-com.o prj-dect.o prj-env.o 
prj-err.o prj-ext.o prj-nmsc.o prj-pars.o prj-part.o prj-proc.o prj-strt.o 
prj-tree.o prj-util.o rident.o s-exctab.o s-secsta.o s-stalib.o s-stoele.o 
scans.o scng.o sdefault.o sfn_scan.o s-purexc.o s-htable.o sinfo.o sinput.o 
sinput-c.o sinput-p.o snames.o stand.o stringt.o styleg.o stylesw.o system.o 
validsw.o switch.o switch-m.o table.o targparm.o tempdir.o tree_io.o types.o 
uintp.o  uname.o urealp.o usage.o widechar.o  \
      ../rts/libgnat.a  ../../prefix.o ../../version.o 
link.o ../../../libiberty/libiberty.a
/usr/bin/ld: Undefined symbols:
__Unwind_Resume
__Unwind_ForcedUnwind
__Unwind_GetDataRelBase
__Unwind_GetIP
__Unwind_GetLanguageSpecificData
__Unwind_GetRegionStart
__Unwind_GetTextRelBase
__Unwind_RaiseException
__Unwind_SetGR
__Unwind_SetIP
collect2: ld returned 1 exit status
make[3]: *** [../../gnatmake] Error 1
make[2]: *** [gnattools-native] Error 2
make[1]: *** [all-gnattools] Error 2
make: *** [all] Error 2

I presume we need to pass -fexceptions here.  More generally, do we need to 
pass -fexceptions in any link against the static Ada runtime?  How does that 
work for C++ for example?

-- 
Eric Botcazou