Bug 2336440

Summary:	amg4psblas failed to build with GCC 15 ("Could not find working version of PSBLAS.")
Product:	[Fedora] Fedora	Reporter:	Dave Malcolm <dmalcolm>
Component:	gcc	Assignee:	Jakub Jelinek <jakub>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	dmalcolm, fweimer, jakub, jlaw, josmyers, jwakely, mcermak, mpolacek, msebor, nickc, nixuser, sipoyare, trpost
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Hardware:	Unspecified
OS:	Linux
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Last Closed:	2025-01-17 18:10:46 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Blocks:	2333037

Description Dave Malcolm 2025-01-08 18:53:14 UTC

I'm experimentally rebuilding rawhide with the not-yet-released GCC 15 to see if anything breaks, and to help write the porting guide.  See https://fedoraproject.org/wiki/User:Dmalcolm/gcc-15

My test build with GCC 15 failed:
https://copr.fedorainfracloud.org/coprs/dmalcolm/gcc-15-smoketest-3.failed/build/8476078/

whereas my test build with GCC 14 succeeded:
https://copr.fedorainfracloud.org/coprs/dmalcolm/gcc-15-smoketest-3.failed.checker/build/8476510/

Looking at the failure logs e.g.
https://download.copr.fedorainfracloud.org/results/dmalcolm/gcc-15-smoketest-3.failed/fedora-rawhide-x86_64/08476078-amg4psblas/builder-live.log.gz

I see:
checking for working installation of PSBLAS... configure_n: error: no.  Could not find working version of PSBLAS.

I'm trying to reproduce the failure; might be another instance of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118337

Reproducible: Didn't try

Comment 1 Siddhesh Poyarekar 2025-01-17 18:10:46 UTC

This appears to have been a gcc bug that was fixed. amg4psblas still doesn't build, but that's a different problem:

At line 134 of file amg_d_base_onelev_descr.f90 (unit = 6, file = 'stdout')
Fortran runtime error: Missing comma between descriptors
(a,1xa,1x,f14.2)
     ^
Error termination. Backtrace:
#0  0xffffa5ac0b1b in ???
#1  0xffffa5ac18bb in ???
#2  0xffffa5ac23c7 in ???
#3  0xffffa5bd05eb in ???
#4  0xffffa5bd12bf in ???
#5  0xffffa5bd16c7 in ???
#6  0xffffa5be1df7 in ???
#7  0xffffa6f147cf in ???
#8  0xffffa6fe2e1f in ???
#9  0xaaaabf3974cf in amg_d_pde2d
	at /builddir/build/BUILD/amg4psblas-1.1.2-build/amg4psblas-1.1.2-1/openmpi-build/samples/advanced/pdegen/amg_d_pde2d.F90:480
#10  0xaaaabf392fa7 in main
	at /builddir/build/BUILD/amg4psblas-1.1.2-build/amg4psblas-1.1.2-1/openmpi-build/samples/advanced/pdegen/amg_d_pde2d.F90:67

that can be dealt with separately as part of mass rebuild FTBFS handling.