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List:       freedesktop-xorg-devel
Subject:    [PATCH:xauth] Add AC_SYSTEM_EXTENSIONS to expose non-standard extensions
From:       Alan Coopersmith <alan.coopersmith () oracle ! com>
Date:       2013-12-27 19:24:22
Message-ID: 1388172262-23499-1-git-send-email-alan.coopersmith () oracle ! com
[Download RAW message or body]

Required on Solaris to expose definitions in system headers that
are not defined in the XPG standards now that xtrans 1.3 defines
_XOPEN_SOURCE to 600 on Solaris.

Fixes build failures:
gethost.c: In function ‘get_hostname':
gethost.c:97:21: error: ‘INET6_ADDRSTRLEN' undeclared (first use in this function)
gethost.c:97:21: note: each undeclared identifier is reported only once for each \
function it appears in gethost.c:97:16: warning: unused variable ‘addr' \
                [-Wunused-variable]
gethost.c: In function ‘get_address_info':
gethost.c:196:9: error: implicit declaration of function ‘strlcpy' \
[-Werror=implicit-function-declaration] gethost.c:196:9: warning: nested extern \
declaration of ‘strlcpy' [-Wnested-externs]

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
---
 configure.ac |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 3b135a9..51f363e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,6 +30,11 @@ AM_MAINTAINER_MODE
 
 AC_CONFIG_HEADERS([config.h])
 
+# Set common system defines for POSIX extensions, such as _GNU_SOURCE
+# Must be called before any macros that run the compiler (like
+# AC_PROG_LIBTOOL) to avoid autoconf errors.
+AC_USE_SYSTEM_EXTENSIONS
+
 # Require X.Org macros 1.8 or later for MAN_SUBSTS set by XORG_MANPAGE_SECTIONS
 m4_ifndef([XORG_MACROS_VERSION],
           [m4_fatal([must install xorg-macros 1.8 or later before running \
                autoconf/autogen])])
-- 
1.7.9.2

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