Re: i370 port - constructing compile script

["Paul Edwards" <mutazilah@gmail.com>]

> Well, the configure process should result in the variable LIBOBJS
> in the generated libiberty Makefile to be set to list of objects
> containing implementations of replacement system routines.
> 
> So if you do not have HAVE_STRCASECMP in config.h, you should
> have been getting strcasecmp.o in LIBOBJS ...

And indeed, I sort of am.

LIBOBJS includes a strcasecmp.s$U.s

That suffix is certainly strange-looking though.  I checked in
config.log and I can see that it automatically detected that
my "object code" has a ".s" extension, which is basically
correct given that I forced the "-S" option.

All of the LIBOBJS are like that.

In addition, there's another problem - it has included strncmp
in the list.  I had a look and it appears that it attempts to
actually run the program to see if strncmp works.  That's
not going to work in a cross-compile environment though.
So maybe it assumes the worst.

I've taken a look at the Makefile to try to find out what is
happening.  It seems that there are REQUIRED_OFILES
which include things like safe-ctype and that has to have
a ".o" extension.  Give that those are hardcoded and
forced to ".o", why isn't LIBOBJS done the same way?

Anyway, I decided to change this:

else
  LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
fi

code you showed earlier to be hardcoded to .o.

And then I changed ac_libobjs to stop putting that $U in 
there as well, and I finally got my strcasecmp.

Note that I also seem to be getting strerror.  It's on the list
of "required files", even though it isn't required or wanted.
configure correctly detected that I already had strerror.
I manually excluded that from my list of files and now things
are looking good again - including strcasecmp being
automatically selected in the build process.  :-)

Hopefully it won't be too much longer before I have the stage 1
JCL being automatically generated so that I can verify the
new files to be compiled actually work on MVS.  :-)

BFN.  Paul.