From: Stefan Weil <sw@weilnetz.de>
To: Anthony Liguori <aliguori@us.ibm.com>
Cc: aneesh.kumar@linux.vnet.ibm.com, serge.hallyn@canonical.com,
Stefan Weil <sw@weilnetz.de>,
qemu-devel@nongnu.org, stefano.stabellini@eu.citrix.com
Subject: [Qemu-devel] [PATCH] configure: Fix build for some versions of glibc (9pfs)
Date: Thu, 7 Jun 2012 07:35:57 +0200 [thread overview]
Message-ID: <1339047357-29413-1-git-send-email-sw@weilnetz.de> (raw)
Some versions declare open_by_handle_at, but don't define AT_EMPTY_PATH.
Extend the check in configure to test both preconditions.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
---
configure | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/configure b/configure
index 799ad0f..f737f6c 100755
--- a/configure
+++ b/configure
@@ -2816,7 +2816,11 @@ fi
open_by_hande_at=no
cat > $TMPC << EOF
#include <fcntl.h>
+#if !defined(AT_EMPTY_PATH)
+# error missing definition
+#else
int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
+#endif
EOF
if compile_prog "" "" ; then
open_by_handle_at=yes
--
1.7.10
next reply other threads:[~2012-06-07 5:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-07 5:35 Stefan Weil [this message]
2012-06-07 10:21 ` [Qemu-devel] [PATCH] configure: Fix build for some versions of glibc (9pfs) Stefano Stabellini
2012-06-07 14:22 ` Serge Hallyn
2012-06-08 10:15 ` Stefano Stabellini
2012-06-12 11:53 ` Stefano Stabellini
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