Bug 894328 – app-crypt/libsecret-0.20.5-r3 fails to compile (MUSL-CLANG-SYSTEM): test-vala-lang.c:1166:51: error: incompatible function pointer types passing void (gpointer) (aka void (void )) to parameter of type GTestDataFunc (aka void ()(const void )) [-Wincompati

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2023-02-14 08:38:29 UTC]

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

Issue: app-crypt/libsecret-0.20.5-r3 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 2023-02-14 08:38:32 UTC]

Created attachment 851020 [details]
build.log

build log and emerge --info

[Comment 2 Agostino Sarubbo 2023-02-14 08:38:34 UTC]

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


FAILED: libsecret/test-vala-lang.p/meson-generated_test-vala-lang.c.o 
FAILED: libsecret/test-vala-unstable.p/meson-generated_test-vala-unstable.c.o 
Program gjs found: NO
Run-time dependency tss2-esys found: NO (tried pkgconfig and cmake)
Run-time dependency tss2-mu found: NO (tried pkgconfig and cmake)
Run-time dependency tss2-rc found: NO (tried pkgconfig and cmake)
Run-time dependency tss2-tctildr found: NO (tried pkgconfig and cmake)
libsecret/test-vala-lang.p/test-vala-lang.c:1166:51: error: incompatible function pointer types passing 'void (gpointer)' (aka 'void (void *)') to parameter of type 'GTestDataFunc' (aka 'void (*)(const void *)') [-Wincompatible-function-pointer-types]

[Comment 3 nvinson234 2023-05-07 19:03:10 UTC]

Created attachment 861278 [details]
const_ptr_fix.patch

A patch to fix the issue.

clang complains about void (*)(void *) not being compatible with void (*)(const void *). This patch casts the function pointers to the proper type before passing them into the functions that need them.

[Comment 4 nvinson234 2023-05-07 19:05:55 UTC]

Upstream discussion of the issue: https://gitlab.gnome.org/GNOME/vala/-/issues/1413