fixed ifaddrs support

socket.c

@@ -325,7 +325,6 @@ char *generate_socket_name(char *socket_name) {
 
 	char *asterisk = strchr(socket_name, '*');
 
-	char *new_socket;
 	char *tcp_port;
 	int i;
 	char *ptr = socket_name;
@@ -354,6 +353,10 @@ char *generate_socket_name(char *socket_name) {
 
 	if (asterisk) {
 
+#ifndef UWSGI_HAS_IFADDRS
+		uwsgi_log("your system does not support ifaddrs subsystem\n");
+#else
+		char *new_socket;
 		uwsgi_log("generate_socket_name(%s)\n", socket_name);
 		// get all the AF_INET addresses available
 		struct ifaddrs *ifap = NULL, *ifa, *ifaf;
@@ -390,6 +393,7 @@ char *generate_socket_name(char *socket_name) {
 		}
 
 		uwsgi_log("unable to find avalid socket address\n");
+#endif
 		uwsgi_nuclear_blast();
 	}
 	return socket_name;

uwsgi.h

@@ -94,7 +94,9 @@
 
 #include <syslog.h>
 
+#ifdef UWSGI_HAS_IFADDRS
 #include <ifaddrs.h>
+#endif
 
 #include <dirent.h>
 

uwsgiconfig.py

@@ -240,6 +240,9 @@ class uConf(object):
         self.cflags.append('-DUWSGI_BUILD_DATE="\\"%s\\""' % time.strftime("%d %B %Y %H:%M:%S"))
         kvm_list = ['FreeBSD', 'OpenBSD', 'NetBSD', 'DragonFly']
 
+        if os.path.exists('/usr/include/ifaddrs.h') or os.path.exists('/usr/local/include/ifaddrs.h'):
+            self.cflags.append('-DUWSGI_HAS_IFADDRS')
+
         if uwsgi_os == 'SunOS':
             self.libs.append('-lsendfile')
             self.gcc_list.append('lib/sun_fixes')