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authorStefan Weil <sw@weilnetz.de>2012-06-06 19:35:57 +0000
committerStefan Weil <sw@weilnetz.de>2012-06-11 22:20:21 +0200
commitacc55ba8b1519bda27be19fad50b65d2b0c7d26d (patch)
tree37485396734f0a11b785039b564a732329c68810
parentfc9fa4bd0a295ac18808c4cd2cfac484bc4649d3 (diff)
downloadfocaccia-qemu-acc55ba8b1519bda27be19fad50b65d2b0c7d26d.tar.gz
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configure: Fix build for some versions of glibc (9pfs)
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>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
-rwxr-xr-xconfigure4
1 files changed, 4 insertions, 0 deletions
diff --git a/configure b/configure
index c2366eef45..5d73c82563 100755
--- a/configure
+++ b/configure
@@ -2812,7 +2812,11 @@ 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