bug#78682: Building libltdl with MSVC fails

[Kirill Makurin]

I can confirm that this was the issue.

I had to explicitly set both F77 and FC to "no". Even if there is no Fortran compiler found, configure sets them to "ifc".

I was thinking to suggest both libtool and automake to add options to explicitly disable checks and test for specific languages. Obviously, this needs a separate discussion.

- Kirill Makurin

---

From: bug-libtool-bounces+maiddaisuki=outlook.com@gnu.org <bug-libtool-bounces+maiddaisuki=outlook.com@gnu.org> on behalf of Kirill Makurin <maiddaisuki@outlook.com>
Sent: Friday, June 6, 2025 2:21 AM
To: ileanadumitrescu95@gmail.com <ileanadumitrescu95@gmail.com>
Cc: 78682@debbugs.gnu.org <78682@debbugs.gnu.org>
Subject: bug#78682: Building libltdl with MSVC fails

 

If I look at output from configure...

When configure checks for Fortran compiler, it finds mingw's gfortran:

```

checking for gfortran... gfortran

```

And then:

```

checking whether the gfortran linker (link.exe -nologo) supports shared libraries... yes

checking dynamic linker characteristics... Win32 ld.exe

```

Could this be the cause?

- Kirill Makurin

---

From: Ileana Dumitrescu
Sent: Friday, June 6, 2025 1:21 AM
To: 78682@debbugs.gnu.org
Cc: Kirill Makurin
Subject: Re: bug#78682: Building libltdl with MSVC fails

On 05/06/2025 19:07, Kirill Makurin wrote:
> I will submit a separate bug report for issue with clang-cl.

Thank you!

> I'm setting NM="dumpbin.exe -nologo -symbols", this works for all
> packages I tried to build so far.

Okay, if you do try it, I would be interested to see if the behaviour
changes.

> I'm building multiple GNU packages with a script which invokes
> `configure` -> `make` -> `make check` -> `make install DESTDIR=...` for
> each package.
>
> I attached gziped output from both `configure` and `make`. (building
> from development branch)

Thank you for the logs! I will look through them and see if I can
reproduce your issue.

--
Ileana Dumitrescu

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