[Qemu-trivial] [PATCH] configure: Detect and don't try to use older libcurl

[Peter Maydell <peter.maydell@linaro.org>]

Older versions of libcurl don't have some of the features we try to
use, in particular curl_multi_setopt(). Check for this in the 'is
libcurl available?' configure test so we disable curl support if the
library is too old.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 configure |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/configure b/configure
index d38b952..03d693a 100755
--- a/configure
+++ b/configure
@@ -1709,7 +1709,7 @@ fi
 if test "$curl" != "no" ; then
   cat > $TMPC << EOF
 #include <curl/curl.h>
-int main(void) { return curl_easy_init(); }
+int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
 EOF
   curl_cflags=`$curlconfig --cflags 2>/dev/null`
   curl_libs=`$curlconfig --libs 2>/dev/null`
-- 
1.7.1