Bug 879775

Summary:	sys-libs/libstdc++-v3: possible configure breakage with Clang 16
Product:	Gentoo Linux	Reporter:	Matt Jolly <kangie>
Component:	Current packages	Assignee:	Gentoo Toolchain Maintainers <toolchain>
Status:	CONFIRMED ---
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	All
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	906027
Attachments:	clang-14.log clang-15.log clang.diff

Description Matt Jolly gentoo-dev

2022-11-04 22:16:02 UTC

This package has been identified via automation as potentially impacted by upcoming Clang 16 changes.
The following have been identified as potential issues:

[-Werror,-Wimplicit-function-declaration]
[-Werror,-Wimplicit-int]

[-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'close'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'getgroups'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'getpagesize'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'rand'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'read'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'umask'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'unlink'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'wait'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'write'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared library function 'printf' with type 'int (const char *, ...)'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared library function 'strcpy' with type 'char *(char *, const char *)'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared library function 'strlen' with type 'unsigned long (const char *)'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared library function 'strncmp' with type 'int (const char *, const char *, unsigned long)'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]

[-Werror,-Wimplicit-int]
error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]

Comment 1 Matt Jolly gentoo-dev

2022-11-04 22:16:07 UTC

Created attachment 827573 [details]
clang-14.log

build log

Comment 2 Matt Jolly gentoo-dev

2022-11-04 22:16:09 UTC

Created attachment 827575 [details]
clang-15.log

build log

Comment 3 Matt Jolly gentoo-dev

2022-11-04 22:16:11 UTC

Created attachment 827577 [details]
clang.diff

build log