Bug 887333 – x11-drivers/xf86-video-openchrome-0.6.0 fails to compile (CLANG-STRICTER-SYSTEM): via_driver.c:1678:45: error: incompatible integer to pointer conversion passing int to parameter of type ShadowUpdateProc (aka void ()(struct _Screen , struct _shadowBuf ))

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2022-12-20 08:16:55 UTC]

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

Issue: x11-drivers/xf86-video-openchrome-0.6.0 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 2022-12-20 08:16:57 UTC]

Created attachment 843959 [details]
build.log

build log and emerge --info

[Comment 2 Agostino Sarubbo 2022-12-20 08:16:58 UTC]

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


:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:111:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:144:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:175:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:229:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:261:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:284:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:339:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:375:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:548:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
xf86dri.c:92:10: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
via_driver.c:1678:45: error: incompatible integer to pointer conversion passing 'int' to parameter of type 'ShadowUpdateProc' (aka 'void (*)(struct _Screen *, struct _shadowBuf *)') [-Wint-conversion]