Bug 887331 – www-servers/fnord-1.11-r2 fails to compile (CLANG-STRICTER-SYSTEM): buffer_1.c:5:20: error: incompatible function pointer types initializing int ()() with an expression of type ssize_t (int, const void , size_t) (aka long (int, const void , unsigned long

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2022-12-20 08:16:50 UTC]

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

Issue: www-servers/fnord-1.11-r2 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 08:16:52 UTC]

Created attachment 843957 [details]
build.log

build log and emerge --info

[Comment 2 Agostino Sarubbo 2022-12-20 08:16:54 UTC]

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


buffer_stubborn.c:7:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
buffer_1.c:5:20: error: incompatible function pointer types initializing 'int (*)()' with an expression of type 'ssize_t (int, const void *, size_t)' (aka 'long (int, const void *, unsigned long)') [-Werror,-Wincompatible-function-pointer-types]