[Qemu-trivial] [PULL 25/52] Fix configure test for PBKDF2 in nettle

[Michael Tokarev]

From: Steven Luo <address@hidden>

On my Debian jessie system, including nettle/pbkdf2.h does not cause
NULL to be defined, which causes the test to fail to compile.  Include
stddef.h to bring in a definition of NULL.

Cc: address@hidden
Cc: address@hidden
Signed-off-by: Steven Luo <address@hidden>
Signed-off-by: Michael Tokarev <address@hidden>
---
 configure | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure b/configure
index f37909d..fd71618 100755
--- a/configure
+++ b/configure
@@ -2343,6 +2343,7 @@ if test "$nettle" != "no"; then
         nettle="yes"
 
         cat > $TMPC << EOF
+#include <stddef.h>
 #include <nettle/pbkdf2.h>
 int main(void) {
      pbkdf2_hmac_sha256(8, NULL, 1000, 8, NULL, 8, NULL);
-- 
2.1.4