[openssh-commits] [openssh] branch master updated: Fix detection of setres*id on GNU/Hurd

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dtucker pushed a commit to branch master
in repository openssh.

The following commit(s) were added to refs/heads/master by this push:
     new ee6b9e66 Fix detection of setres*id on GNU/Hurd
ee6b9e66 is described below

commit ee6b9e661633fcefd29dba0c811cecbc4d027f6f
Author: Samuel Thibault <samuel.thibault at ens-lyon.org>
AuthorDate: Tue Mar 26 22:15:08 2024 +0100

    Fix detection of setres*id on GNU/Hurd
    
    Like Linux, proper _SOURCE macros need to be set to get declarations of
    various standard functions, notably setres*id. Now that Debian is using
    -Werror=implicit-function-declaration this is really required. While at
    it, define other _SOURCE macros like on GNU/Linux, since GNU/Hurd uses
    the same glibc.
---
 configure.ac | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac
index 5a865f8e..2eede34c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1348,6 +1348,13 @@ EOD
 	AC_DEFINE([BROKEN_SETVBUF], [1],
 	    [LynxOS has broken setvbuf() implementation])
 	;;
+*-*-gnu*)
+	dnl GNU Hurd.  Needs to be after the linux and the other *-gnu entries.
+	dnl Target SUSv3/POSIX.1-2001 plus BSD specifics.
+	dnl _DEFAULT_SOURCE is the new name for _BSD_SOURCE
+	dnl _GNU_SOURCE is needed for setres*id prototypes.
+	CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_GNU_SOURCE"
+	;;
 esac
 
 AC_MSG_CHECKING([compiler and flags for sanity])

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