Bug 886467 – sci-libs/taucs-2.2-r1 fails to compile (CLANG-STRICTER-SYSTEM): taucs_blas_nounderscore_test.c:(.text+0xa8): undefined reference to dgemm

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2022-12-17 08:55:41 UTC]

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

Issue: sci-libs/taucs-2.2-r1 fails to compile (CLANG-STRICTER-SYSTEM).
Discovered on: amd64 (internal ref: clang-stricter_tinderbox)

NOTE:
(CLANG-STRICTER-SYSTEM) in the summary means that the bug was found on a machine that runs clang with stricter mode

This machine uses clang with CFLAGS/CXXFLAGS=-Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types

See also:
https://archives.gentoo.org/gentoo-dev/message/dd9f2d3082b8b6f8dfbccb0639e6e240
https://wiki.gentoo.org/wiki/Modern_C_porting

[Comment 1 Agostino Sarubbo 2022-12-17 08:55:43 UTC]

Created attachment 843196 [details]
build.log

build log and emerge --info

[Comment 2 Agostino Sarubbo 2022-12-17 08:55:44 UTC]

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


/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find obj/linux_shared/taucs_cilk_test.o: No such file or directory
f951: Error: ‘-Werror=incompatible-function-pointer-types’: no option ‘-Wincompatible-function-pointer-types’; did you mean ‘-Wincompatible-pointer-types’?
make: obj/linux_shared/taucs_blas_nounderscore_test: No such file or directory
make: obj/linux_shared/taucs_cilk_test: No such file or directory
taucs_blas_nounderscore_test.c:(.text+0xa8): undefined reference to `dgemm'
collect2: error: ld returned 1 exit status