Alex, It appears to be in the git repo, so if that is 2.4.7, then yes. Attached is a patch that works for me, checking to see if the XL Fortran compiler is at least Version 16 or better (maybe a better way of checking). Thanks for responding so quickly, Bill I have more general workaround where I check the IBM XL Fortran version.  See example below: On 4/9/22 12:24 PM, Alex Ameen wrote: > This sounds reasonable to me. Just to clarify, is this workaround > still in 2.4.7? > > On Sat, Apr 9, 2022, 10:02 AM William T Jones via Bug-libtool via Bug > reports for the GNU libtool shared library maintenance tool > wrote: > > Hello, > > Libtool 2.4.6 has an apparently outdated work around for the IBM XL > Fortran compiler's inability to link shared libraries (see > m4/libtool.m4 > lines 5208, 5237-5248). > > As comments in m4/libtool.m4 state, the problem is with IBM XL > Fortran > version 10.1 on PowerPC.  However, we are now using IBM XL Fortran > version 16.1 on PPC (ORNL summit) and it does allow linking of shared > objects with xlf via the same "-qmkshrobj" command line option > used by > xlc and xlC on lines 5208-5210 of m4/libtool.m4. > > To make matters worse, the workaround of using $LD to link shared > libraries with Fortran objects does not easily work when linking > mixed > language object code into such a shared library (one needs to know > IBM > XL paths to libraries like libibmc++.so and libstdc++.so, for > example). > This is easily resolved when one links with `xlf -qmkshrobj ...`. > > It is suggested that this workaround check for compiler version or be > deprecated. > > Resolution is appreciated, > > > -- > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > >      Bill Jones W.T.JONES@NASA.GOV >      Mail Stop 128                     Computational AeroSciences > Branch >      15 Langley Boulevard                           Research > Directorate >      NASA Langley Research Center               Building 1268, > Room 1044 >      Hampton, VA  23681-2199                       Phone +1 757 > 864-5318 >                                                      Fax +1 757 > 864-8816 > http://fun3d.larc.nasa.gov > > > > > _______________________________________________ > Bug-libtool mailing list > Bug-libtool@gnu.org > https://lists.gnu.org/mailman/listinfo/bug-libtool > > -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bill JonesW.T.JONES@NASA.GOV Mail Stop 128 Computational AeroSciences Branch 15 Langley Boulevard Research Directorate NASA Langley Research Center Building 1268, Room 1044 Hampton, VA 23681-2199 Phone +1 757 864-5318 Fax +1 757 864-8816 http://fun3d.larc.nasa.gov