Bug 893918

Summary:	app-shells/bash: configure breakage with clang 16
Product:	Gentoo Linux	Reporter:	Sam James <sam>
Component:	Current packages	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://lists.gnu.org/archive/html/bug-bash/2023-02/msg00000.html
Whiteboard:	fixed in ???
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	906027

Description Sam James archtester

2023-02-11 05:27:35 UTC

Filing this one for completeness in case the patch is forgotten about upstream, so we have some hope of remembering it.

"""
dup2 requires a <unistd.h> include. Fixes the following when diffing config.log
 when testing with a stricter compiler:
```
-warning: call to undeclared function 'dup2'; ISO C99 and later do not support 
implicit function declarations [-Wimplicit-function-declaration]
+error: call to undeclared function 'dup2'; ISO C99 and later do not support 
implicit function declarations [-Wimplicit-function-declaration]
```
"""

https://lists.gnu.org/archive/html/bug-bash/2023-02/msg00000.html