Bug 898290 – sci-libs/scalapack-2.2.0_p20240704 fails to compile: igsum2d_.c:153:7: error: call to undeclared function BI_imvcopy; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2023-02-28 09:49:42 UTC]

https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: sci-libs/scalapack-2.1.0 fails to compile (MUSL-CLANG-SYSTEM).
Discovered on: amd64 (internal ref: tinderbox_musl)

NOTE:
(MUSL-CLANG-SYSTEM) in the summary means that bug was found on a machine that runs MUSL libc + clang16 but this bug MAY or MAY NOT BE related to musl/clang16.

[Comment 1 Agostino Sarubbo 2023-02-28 09:49:45 UTC]

Created attachment 855114 [details]
build.log

build log and emerge --info

[Comment 2 Agostino Sarubbo 2023-02-28 09:49:47 UTC]

Error(s) that match a know pattern in addition to what has been reported in the summary:


FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/cgsum2d_.c.o 
FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/dgamx2d_.c.o 
FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/dgsum2d_.c.o 
FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/igamx2d_.c.o 
FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/igsum2d_.c.o 
FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/sgamx2d_.c.o 
FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/sgsum2d_.c.o 
FAILED: CMakeFiles/scalapack.dir/BLACS/SRC/zgsum2d_.c.o 
/var/tmp/portage/sci-libs/scalapack-2.1.0/work/scalapack-2.1.0/BLACS/SRC/igsum2d_.c:153:7: error: call to undeclared function 'BI_imvcopy'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

[Comment 3 Eli Schwartz 2024-03-05 20:58:51 UTC]

Reproduced with glibc + gcc. ;)

[Comment 4 Matthias Maier 2024-07-04 16:34:22 UTC]

Still present in 2.2.0_p20240704.

[Comment 5 Eli Schwartz 2024-07-04 16:37:07 UTC]

There has been no activity on the upstream ticket. I wouldn't hold my breath. :(

[Comment 6 Matthias Maier 2024-07-04 16:53:09 UTC]

(In reply to Eli Schwartz from comment #5)
> There has been no activity on the upstream ticket. I wouldn't hold my
> breath. :(

Yes, the reference scalapack is a *very* dormant project...


I'll put it on my todo list for a quiet minute to hunt down proper header declarations.

[Comment 7 Agostino Sarubbo 2024-07-05 07:00:43 UTC]

ci has reproduced this issue with version 2.2.0_p20240704 - Updating summary.

[Comment 8 Tiernan Hubble 2024-07-05 20:17:19 UTC]

It needs "-Wno-implicit-function-declaration" in CFLAGS to build with gcc 14.

From arch commit: https://aur.archlinux.org/cgit/aur.git/commit/PKGBUILD?h=scalapack

I built it with "-Wno-implicit-function-declaration" in my CFLAGS and it fixed the issue.

[Comment 9 Eli Schwartz 2024-07-05 21:34:26 UTC]

(In reply to Tiernan Hubble from comment #8)
> It needs "-Wno-implicit-function-declaration" in CFLAGS to build with gcc 14.
> 
> From arch commit:
> https://aur.archlinux.org/cgit/aur.git/commit/PKGBUILD?h=scalapack
> 
> I built it with "-Wno-implicit-function-declaration" in my CFLAGS and it
> fixed the issue.

This is fundamentally misunderstanding the purpose of the bug report. We know that flag exists, and we know the value has changed to become a Werror.

This is a bug report about the fact that the source code of scalapack uses implicit function declarations, which is problematic since software should not do so -- it is terrifically dangerous!

It needs to be fixed and that's what we are tracking here. It doesn't need to be silenced. If we just wanted to silence it, we would have done that a year ago.

[Comment 10 Tiernan Hubble 2024-07-05 21:52:30 UTC]

(In reply to Eli Schwartz from comment #9)
> (In reply to Tiernan Hubble from comment #8)
> > It needs "-Wno-implicit-function-declaration" in CFLAGS to build with gcc 14.
> > 
> > From arch commit:
> > https://aur.archlinux.org/cgit/aur.git/commit/PKGBUILD?h=scalapack
> > 
> > I built it with "-Wno-implicit-function-declaration" in my CFLAGS and it
> > fixed the issue.
> 
> This is fundamentally misunderstanding the purpose of the bug report. We
> know that flag exists, and we know the value has changed to become a Werror.
> 
> This is a bug report about the fact that the source code of scalapack uses
> implicit function declarations, which is problematic since software should
> not do so -- it is terrifically dangerous!
> 
> It needs to be fixed and that's what we are tracking here. It doesn't need
> to be silenced. If we just wanted to silence it, we would have done that a
> year ago.

Ah, sorry - I misunderstood.