> 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
