Re: Unable to compile postgresql-18.1

As already requested, please answer following questions with lots of
details;

What are exact build commands you've executed?

Le 21/01/2026 à 09:52, Ibrahim Shaame a écrit :
> I have manually directed the LD_LIBRARY_PATH to /usr/lib64 but I get
> the same error message.
> Any suggestions?
> Thanks
> Ibrahim Shaame
>
> On Wed, Jan 21, 2026 at 9:49 AM Ibrahim Shaame <ishaame(at)gmail(dot)com> wrote:
>
> Hello Erik,
> Thank you for the response. As for LIBRARY_PATH, I have always
> manually compiled postgresql and I don't explicitly mention the
> LIBRARY_PATH directory. That's why I am surprised why this time
> with this subversion doesn't work just as it worked in the last
> version.
>
> Thanks
> Ibrahim
>
> On Sun, Jan 18, 2026 at 7:29 PM Erik Wienhold <ewie(at)ewie(dot)name> wrote:
>
> On 2026-01-02 19:23 +0100, Ibrahim Shaame wrote:
> > I have tried to compile from source postgresql-18.1 but it
> fails and I get
> > the following error:
> >
> > gcc: fatal error: cannot read spec file ‘./specs’: Is a
> directory
> > compilation terminated.
> > make[2]: *** [<builtin>: isolationtester.o] Error 1
> > make[2]: Leaving directory
> > '/data/dwnlds/dwnld_slack/postgresql-18.1/src/test/isolation'
> > make[1]: *** [Makefile:42: all-test/isolation-recurse] Error 2
> > make[1]: Leaving directory
> '/data/dwnlds/dwnld_slack/postgresql-18.1/src'
> > make: *** [GNUmakefile:11: all-src-recurse] Error 2
> >
> > Last compilation of postgresql-18.0 worked perfectly without
> issue and on
> > the same laptop
> > Any suggestions?
> >
> > I am on : Slackware64 Linux 15.0 (Current)
> > Acer E5-771 laptop
>
> What are exact build commands you've executed?
>
> Could be that LIBRARY_PATH contains an empty path.  For
> example, I can
> reproduce it with:
>
>         export LIBRARY_PATH=
>         make clean world-bin
>
> --
> Erik Wienhold
>