Clifford Wolf:

package/avm/hostap/hostap.conf

@@ -43,6 +43,7 @@ hostap_postmake()
 hostap_premake()
 {
 	if basename $PWD | grep -q hostapd; then
+		 patch -p1 < $confdir/hostapd-openssl-hotfix.diff
 		 cp defconfig .config
 	fi
 	if basename $PWD | grep -q hostap-driver; then

package/avm/hostap/hostapd-openssl-hotfix.diff

@@ -0,0 +1,10 @@
+--- ./crypto.c.orig	2005-07-25 15:14:45.000000000 +0200
++++ ./crypto.c	2005-07-25 15:14:53.000000000 +0200
+@@ -12,6 +12,7 @@
+  * See README and COPYING for more details.
+  */
+ 
++#include <sys/types.h>
+ #include <openssl/md4.h>
+ #include <openssl/des.h>
+