Re: tagdemo link problem libtool HEAD / AIX 5.3

[Rainer Tammer]

Hello Ralf,
I rechecked the following combinations (just to be sure :-)):

branch-1.5: AIX 6.1 / IBM XL C/C++ 9.0 + gfortran 4.2.2 / AIX ar/nm
=> All 112 tests passed

branch-1.5: AIX 6.1 / gcc 4.2.2 compiled for AIX 5.3 from www.perzl.org 
/ AIX ar/nm
=> All 112 tests passed

branch-1.5: AIX 5.3 / IBM VisualAge C/C++ 6.0 + gfortran 4.2.2 / AIX ar/nm
=> All 112 tests passed

branch-1.5: AIX 5.3 / gcc 4.2.2 compiled for AIX 5.3 from www.perzl.org 
/ AIX ar/nm
=> All 112 tests passed

branch-1.5: AIX 5.3 / gcc 4.2.2 compiled for AIX 5.3 from www.perzl.org 
/ binutils ar/nm
=> 2 of 110 tests failed

1. failure
g++ -g -O2 -Wl,-brtl -o .libs/tagdemo main.o  -L./.libs -lbaz 
-L/opt/freeware/src/packages/BUILD/gcc-build/powerpc-ibm-aix5.3.0.0/libstdc++-v3/src 
-L/opt/freeware/src/packages/BUILD/gcc-build/powerpc-ibm-aix5.3.0.0/libstdc++-v3/src/.libs 
-L/opt/freeware/src/packages/BUILD/gcc-build/./gcc 
-L/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/
../.. -L/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2 -lstdc++ 
-Wl,-blibpath:/daten/source/libtool/branch-1-5/libtool-20080113-gcc/tests/_inst/lib:/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2:/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2:/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2/../../..:/usr/lib:/lib
ld: 0711-317 ERROR: Undefined symbol: vtable for foobar_derived
ld: 0711-317 ERROR: Undefined symbol: vtable for barbaz_derived
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more 
information.
collect2: ld returned 8 exit status
gmake[3]: *** [tagdemo] Error 1
gmake[3]: Target `all' not remade because of errors.
gmake[3]: Leaving directory 
`/daten/source/libtool/branch-1-5/libtool-20080113-gcc/tagdemo'
FAIL: tagdemo-make.test

2. failure
g++ -g -O2 -Wl,-brtl -o .libs/tagdemo main.o  -L./.libs -lbaz 
-L/opt/freeware/src/packages/BUILD/gcc-build/powerpc-ibm-aix5.3.0.0/libstdc++-v3/src 
-L/opt/freeware/src/packages/BUILD/gcc-build/powerpc-ibm-aix5.3.0.0/libstdc++-v3/src/.libs 
-L/opt/freeware/src/packages/BUILD/gcc-build/./gcc 
-L/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/
../.. -L/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2 -lstdc++  
-Wl,-blibpath:/daten/source/libtool/branch-1-5/libtool-20080113-gcc/tests/_inst/lib:/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2:/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2:/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.2/../../..:/usr/lib:/lib
ld: 0711-317 ERROR: Undefined symbol: vtable for foobar_derived
ld: 0711-317 ERROR: Undefined symbol: vtable for barbaz_derived
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more 
information.
collect2: ld returned 8 exit status
gmake[3]: *** [tagdemo] Error 1
gmake[3]: Target `all' not remade because of errors.
gmake[3]: Leaving directory 
`/daten/source/libtool/branch-1-5/libtool-20080113-gcc/tagdemo'
FAIL: tagdemo-make.test

branch-1.5: AIX 5.2 / IBM XL C/C++ 8.0 / AIX ar/nm
=> All tests are OK

HEAD: AIX 6.1 / IBM XL C/C++ 9.0 + gfortran 4.2.2 / AIX ar/nm
=> All 124 tests passed + testsuite 57 tests passed + 2 skipped (8 + 14)

HEAD: AIX 6.1 / gcc 4.2.2 compiled for AIX 5.3 from www.perzl.org / AIX 
ar/nm
=> All 124 tests passed + testsuite 57 tests passed + 2 skipped (8 + 14)

HEAD: AIX 5.3 / IBM VisualAge C/C++ 6.0 + gfortran 4.2.2 / AIX ar/nm
=> All 124 tests passwd + testsuite 57 tests passed + 2 skipped (8 + 14)

HEAD: AIX 5.3 / gcc 4.2.2 compiled for AIX 5.3 from www.perzl.org / AIX 
ar/nm
=> All 124 tests passwd + testsuite 57 tests passed + 2 skipped (8 + 14)


> Ah, great.  So it seems we finally got all AIX issues nailed.  The GCC
> fixincludes screwup for unistd.h seems likely to break other headers as
> well, and more importantly, I think it should be breaking lots of
> packages.  Surely we could
>   #ifndef R_OK
>   # define R_OK 4
>   #endif
>
> just like we do for MSVC, but we certainly cannot replace all of
> unistd.h (and no, I'm not going to drag in gnulib for a GCC bug in
> a way old version).  Let that be fixed upstream.
>
>   
The problem is not the R_OK is not defined, the problem is that rid_t is 
not in the gcc version of sys/types.h.
If you add "typedef uint_t          rid_t;          /* role ID */" to 
sys/types.h then the R_OK problem is gone.
Furthermore this only happens on AIX 6.1 not on 5.x.

By the time we have a fully working gcc 4.2.2 on AIX 6.1 the problem 
should went away.
> > And if the old Toolbox ar/nm is installed things are going wrong.
> >     
>
> Well, we strive to make that work for as many setups as possible, but
> for this one I think we should just put a note in doc/notes.texi.
>   
Thats OK.
> I've applied the patch below and backported it to branch-1-5's README.
> (I don't like unconditionally rejecting free-software binutils over
> proprietary native, because it may be fixed in due time, or a newer
> version is already, and actually testing for the C++ link failure just
> for deciding which nm to use would be too complex.)
>
>   
I have just the same feeling.
> > Is it possible to check if we are on AIX and then switch automatically  
> > to the AIX ar/nm ??
> >     
>
> Possibly.  But it would be rather complicated, and this is IMHO a rather
> rare use case for which I don't think the added complexity is worth it.
>
>   
OK, it's now in the notes and thus everyone can read it :-))

Thank you very much for your help.

If you need further test (not only libtool) on AIX please feel free to 
contact me via personal mail.
> Cheers,
> Ralf
>
>   
Bye
 Rainer


P.S.: When will you put the new config.guess in autoconf ?
I still see the old version in git.