configure: Fix shell syntax to placate OpenBSD's pdksh
Unfortunately the OpenBSD pdksh does not like brackets inside
the right part of a ${variable+word} parameter expansion:
$ echo "${a+($b)}"
ksh: ${a+($b)}": bad substitution
though both bash and dash accept them. In any case this line
was causing odd output in the case where nettle is not present:
nettle no ()
(because if nettle is not present then $nettle will be "no",
not a null string or unset).
Rewrite it to just use an if.
This bug was originally introduced in becaeb726 and was present
in the 2.4.0 release.
Fixes: https://bugs.launchpad.net/qemu/+bug/1525682
Reported-by: Dmitrij D. Czarkoff
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1450105357-8516-1-git-send-email-peter.maydell@linaro.org
diff --git a/configure b/configure
index 375f103..83b40fc 100755
--- a/configure
+++ b/configure
@@ -4766,7 +4766,11 @@
echo "GNUTLS support $gnutls"
echo "GNUTLS hash $gnutls_hash"
echo "libgcrypt $gcrypt"
-echo "nettle $nettle ${nettle+($nettle_version)}"
+if test "$nettle" = "yes"; then
+ echo "nettle $nettle ($nettle_version)"
+else
+ echo "nettle $nettle"
+fi
echo "libtasn1 $tasn1"
echo "VTE support $vte"
echo "curses support $curses"
