From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Tue, 26 Mar 2024 21:15:08 +0000 (+0100)
Subject: Fix detection of setres*id on GNU/Hurd
X-Git-Tag: V_9_9_P1~106
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee6b9e661633fcefd29dba0c811cecbc4d027f6f;p=thirdparty%2Fopenssh-portable.git

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.
---

diff --git a/configure.ac b/configure.ac
index 5a865f8e1..2eede34c3 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])