Re: ada/9953: Unsatisfied symbols: U_prep_frame_rec_for_unwind (c

["John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>]

The following reply was made to PR ada/9953; it has been noted by GNATS.

From: "John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>
To: hainque at ACT-Europe dot FR (Olivier Hainque)
Cc: dave dot anglin at nrc-cnrc dot gc dot ca, gcc-gnats at gcc dot gnu dot org, hainque at ACT-Europe dot FR,
   bosch at gnat dot com
Subject: Re: ada/9953: Unsatisfied symbols: U_prep_frame_rec_for_unwind (c
Date: Mon, 17 Mar 2003 11:15:12 -0500 (EST)

 > dave dot anglin at nrc-cnrc dot gc dot ca wrote:
 > > cd ada/doctools && gnatmake -q xgnatug
 > > /usr/ccs/bin/ld: Unsatisfied symbols:
 > >    U_prep_frame_rec_for_unwind (code)
 > 
 >  As indicated on other channels, this is because the GNAT run-time library
 >  references functions from the system unwinding library (for call-chain
 >  computation purposes), and this specific one is not provided on HPUX 10.
 > 
 >  The patch below should fix this.
 
 [...]
 
 > + 
 >     TGT_LIB = /usr/lib/libcl.a -lpthread
 >     THREADSLIB = -lpthread -lc_r
 >     SYMLIB = -laddr2line -lbfd $(INTLLIBS)
 
 We still have a problem.  The first problem is fixed but libpthread
 (posix threads) isn't available under 10.20:
 
 ../../xgcc -B../../ -DIN_GCC   `echo -g -W -Wall -Wwrite-strings -Wstrict-protot
 ypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  |sed -e 's/-pe
 dantic//g' -e 's/-Wtraditional//g'`   -o ../../gnatmake b_gnatm.o ali.o ali-util
 .o alloc.o atree.o binderr.o butil.o casing.o csets.o debug.o einfo.o elists.o e
 rrout.o fmap.o fname.o fname-uf.o fname-sf.o gnatmake.o gnatvsn.o hostparm.o kru
 nch.o lib.o make.o makeusg.o mlib.o mlib-fil.o mlib-prj.o mlib-tgt.o mlib-utl.o
 namet.o nlists.o opt.o osint.o osint-m.o output.o prj.o prj-attr.o prj-com.o prj
 -dect.o prj-env.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 scans.o scn.o sdefault.o sfn_scan.o sinfo.o si
 nfo-cn.o sinput.o sinput-l.o sinput-p.o snames.o stand.o stringt.o style.o style
 sw.o validsw.o switch.o switch-m.o switch-c.o table.o targparm.o tree_io.o types
 .o uintp.o uname.o urealp.o usage.o widechar.o \
       ../../prefix.o ../../version.o ../rts/libgnat.a  ../../../libiberty/libiberty.a  /usr/lib/libcl.a -lpthread
 /usr/ccs/bin/ld: Can't find library for -lpthread
 
 Dave
 -- 
 J. David Anglin                                  dave dot anglin at nrc-cnrc dot gc dot ca
 National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)