Re: Shared C++ libraries on AIX

[Martin Frydl]

Thanks for suggestion but this is even worse (CVS main trunk, 2002-10-07 
- version 1.4e):

        source='sub1.cpp' object='sub1.lo' libtool=yes 
depfile='.deps/sub1.Plo' tmpdepfile='.deps/sub1.TPlo'  depmode=aix 
/bin/sh ./depcomp  /bin/sh ./libtool --mode=compile xlC 
-DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" 
-DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"cpplibtest\" 
-DVERSION=\"0.1\" -D_ALL_SOURCE=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 
-DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 
-DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 
-DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1   -I. -I.      -g -c -o sub1.lo `test 
-f "sub1.cpp" || echo './'`sub1.cpp
./libtool[338]: s%^.*/%%:  not found.
./libtool[410]: -e:  not found
: warning: cannot infer operation mode from `xlC'
: you must specify a MODE
Try ` --help' for more information.
make: 1254-004 The error code from the last command is 1.

This is on line 338:

progname=`$echo "$0" | ${SED} 's%^.*/%%'`

The problem is with SED variable, it is not defined anywhere in libtool 
script. I think the CVS version is currently unstable.

  Martin

Bob Friesenhahn wrote:
> Try using CVS libtool instead.  It is designed to support C++, and
> usually uses the C++ compiler to link C++ objects.
>
> Bob
>
> On Mon, 7 Oct 2002, Martin Frydl wrote:
>
>
> > Hello,
> >
> >   I'm having trouble when trying to built shared C++ libraries on AIX
> > 4.3 with libtool 1.4.2 and also 1.4d. I'm using IBM C/C++ compiler 3.6.6.
> >
> >   The first problem is nm utility. Libtool lists public symbols in all
> > .o files and creates export file from them. However, "nm -B" on AIX by
> > default demangles all C++ identifiers and therefore these are not listed
> > in export file. Extra option -C must be added to force nm not to
> > demangle C++.
> >
> >   Second problem is with linking itself. Libtool passes -lc to linker
> > but -lC (or -lC_r for reentrant version) should be used. When not used,
> > link passes without problems but later when library invokes new
> > operator, core dump occurs.
> >
> >   Are there any suggestions regarding these issues?
> >
> >   Thanks
> >     Martin
> >
> >
> >
> > _______________________________________________
> > Libtool mailing list
> > address@hidden
> > http://mail.gnu.org/mailman/listinfo/libtool
>
>
> ======================================
> Bob Friesenhahn
> address@hidden
> http://www.simplesystems.org/users/bfriesen