On Tue, Mar 4, 2025 at 7:18 PM James K. Lowden <jklow...@schemamania.org> wrote:
>
> On Tue, 4 Mar 2025 00:08:16 +0100
> Jakub Jelinek <ja...@redhat.com> wrote:
>
> > On Mon, Mar 03, 2025 at 05:21:38PM -0500, James K. Lowden wrote:
> > > However IMO, the incantation:
> > >
> > >     make install DESTDIR=/foo
> > >
> > > is invalid.  The compiler's library search path is fixed when the
> > > compiler is built, based on configure options.  Installing into an
> > > arbitrary directory cannot work; there is no opportunity then to
> > > alter the gcobol binary.
> >
> > This is how most distros install stuff for their packaging systems,
> > make install DESTDIR=/some/directory
> > and then everything under /some/directory
> > is packaged into the package.
> > GCC is generally relocatable, the compiler driver should find the
> > compiler and library/include directories etc. relative to where the
> > driver resides in the filesystem.
>
> Thank you for taking the time to explain that, Jakub.  I stand
> corrected, and I believe you'll find that DESTDIR works as intended
> using the current cobol-patched branch.  It works here for me.
>
> Somehow, despite reading the automake documentation over and over
> these last several days while we struggled to bring the libgcobol
> build process into the 20th [sic] century, I didn't put 2 + 2 together.
> Looking at it now, I see that by using automake we get DESTDIR for free,
> provided (as we do) that we use libtool for installation.
>
> In short, despite not trying to support DESTDIR, we do anyway, by happy
> accident.  And we are now better informed.

Thanks.  Checking cobol-patched again I see

obj2> make install DESTDIR=/home/rguenther/install/gcc-cobol
...
libtool: install: /usr/bin/install -c .libs/libgcobol.so.1.0.0T
/usr/local/lib64/../lib64/libgcobol.so.1.0.0
/usr/bin/install: cannot create regular file
'/usr/local/lib64/../lib64/libgcobol.so.1.0.0': Permission denied
make[2]: *** [Makefile:956: install] Error 1
make[2]: Leaving directory '/home/rguenther/obj2/x86_64-pc-linux-gnu/libgcobol'
make[1]: *** [Makefile:18349: install-target-libgcobol] Error 2
make[1]: Leaving directory '/home/rguenther/obj2'
make: *** [Makefile:2671: install] Error 2

so a DESTDIR install isn't quite working yet.

install: libgcobol$(libsuffix).la
        $(LIBTOOL) --mode=install $(INSTALL) $^ $(libdir)/../lib64

the usual way would be to have automake/libtool generate the install rule by
only doing

toolexeclib_LTLIBRARIES = libgcobol.la

you have

lib_LTLIBRARIES = libgcobol.la

so simply removing the install: rule might work (there's toolexeeclib vs. lib,
this might or might not mean --enable-version-specific-runtime-libs will
break).

[time passes]

So dropping the install rule makes make install succeed but there's no
libgcobol installed.  I have the wrong automake on the test machine so
can't quickly check what happens when using toolexeclib_LTLIBRARIES

>
> Regards,
>
> --jkl

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