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Re: AIX library issues
- From: David Edelsohn <dje dot gcc at gmail dot com>
- To: Perry Smith <pedzsan at gmail dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 18 Oct 2011 10:59:56 -0400
- Subject: Re: AIX library issues
- References: <BEABC729-50AE-4EF6-B1F7-C6CB656807F5@gmail.com>
On Mon, Oct 17, 2011 at 10:05 PM, Perry Smith <pedzsan@gmail.com> wrote:
> dump -H libstdc++.so.6
>
> ./powerpc-ibm-aix6.1.0.0/libstdc++-v3/src/.libs/libstdc++.so.6.orig:
>
> ? ? ? ? ? ? ? ? ? ? ? ?***Loader Section***
> ? ? ? ? ? ? ? ? ? ? ?Loader Header Information
> VERSION# ? ? ? ? #SYMtableENT ? ? #RELOCent ? ? ? ?LENidSTR
> 0x00000001 ? ? ? 0x00000fe0 ? ? ? 0x000033b6 ? ? ? 0x000000da
>
> #IMPfilID ? ? ? ?OFFidSTR ? ? ? ? LENstrTBL ? ? ? ?OFFstrTBL
> 0x00000003 ? ? ? 0x0003e9a8 ? ? ? 0x0002dec7 ? ? ? 0x0003ea82
>
>
> ? ? ? ? ? ? ? ? ? ? ? ?***Import File Strings***
> INDEX ?PATH ? ? ? ? ? ? ? ? ? ? ? ? ?BASE ? ? ? ? ? ? ? ?MEMBER
> 0 ? ? ?/usr/work/build/gcc-4.5.2/powerpc-ibm-aix6.1.0.0/libstdc++-v3/src:/usr/work/build/gcc-4.5.2/powerpc-ibm-aix6.1.0.0/libstdc++-v3/src/.libs:/usr/work/build/gcc-4.5.2/./gcc:/usr/lib:/lib
> 1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?libc.a ? ? ? ? ? ? ?shr.o
> 2 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?libgcc_s.a ? ? ? ? ?shr.o
>
> What this is telling us is that libstdc++.so.6 needs libc.a(shr.o) and
> libgcc_s.a(shr.o) and it is also telling us that when libc.a(shr.o)
> and libgcc_s.a(shr.o) is needed at run time, the list of places
> searched is the list of directories listed in entry 0. ?But the list
> is the list of where the library is built -- not where it (or more
> importantly where libgcc_s.a) will be installed. ?When I configured
> and built this gcc, prefix path was set to
> /gsa/ausgsa/projects/r/ruby.
>
> Here are the first few lines of my config.log:
>
> ?/usr/work/src/gcc-4.5.2/configure --prefix=/gsa/ausgsa/projects/r/ruby --with-gmp=/gsa/ausgsa/projects/r/ruby --with-mpfr=/gsa/ausgsa/projects/r/ruby --with-mpc=/gsa/ausgsa/projects/r/ruby --disable-nls --enable-threads=aix --with-libiconv-prefix=/usr --enable-languages=c,c++
AIX inserts the list of libraries provided with -L options on the link
command line into the default search path. If you want, you can edit
libtool created for libstdc++ to add
-Wl,-blibpath:/gsa/ausgsa/projects/r/ruby/lib:/usr/lib:/lib and relink
libstdc++ (or edit the path in the shared object header directly).
- David