Backport: On recent linux kernels we were not detecting the linux/netfilter_ipv4.h header properly, since we needed to have in_addr and in6_addr and __u32 defined before trying to include it. Fix that.

svn:r16461

ChangeLog

@@ -4,6 +4,8 @@ Changes in version 0.2.0.31 - 2008-08-??
       by rovv.
     - Recover 3-7 bytes that were wasted per memory chunk.  Fixes bug
       794; bug spotted by rovv.  Bugfix on 0.2.0.1-alpha.
+    - Correctly detect the presence of the linux/netfilter_ipv4.h header
+      when building against recent kernels.  Bugfix on 0.1.2.1-alpha.
 
 
 Changes in version 0.2.0.30 - 2008-07-15

configure.in

@@ -301,7 +301,7 @@ AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h
 
 dnl These headers are not essential
 
-AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h inttypes.h utime.h sys/utime.h sys/mman.h netinet/in6.h malloc.h sys/syslimits.h malloc/malloc.h)
+AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h inttypes.h utime.h sys/utime.h sys/mman.h netinet/in6.h malloc.h sys/syslimits.h malloc/malloc.h linux/types.h)
 
 TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
 [#ifdef HAVE_MALLOC_H
@@ -336,6 +336,15 @@ AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
 #endif
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifdef HAVE_LINUX_TYPES_H
+#include <linux/types.h>
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include <netinet/in6.h>
+#endif
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif])

src/or/connection_edge.c

@@ -14,6 +14,9 @@ const char connection_edge_c_id[] =
 
 #include "or.h"
 
+#ifdef HAVE_LINUX_TYPES_H
+#include <linux/types.h>
+#endif
 #ifdef HAVE_LINUX_NETFILTER_IPV4_H
 #include <linux/netfilter_ipv4.h>
 #define TRANS_NETFILTER