diff -urN uClibc-0.9.30.1.orig/include/netinet/igmp.h uClibc-0.9.30.1/include/netinet/igmp.h

--- uClibc-0.9.30.1.orig/include/netinet/igmp.h	2009-04-08 09:00:10.926545132 +0200

+++ uClibc-0.9.30.1/include/netinet/igmp.h	2009-04-08 09:00:26.242514273 +0200

@@ -69,7 +69,7 @@

   u_int8_t igmp_code;             /* routing code */

   u_int16_t igmp_cksum;           /* checksum */

   struct in_addr igmp_group;      /* group address */

-};

+} __attribute__ ((__packed__));

 #define IGMP_MINLEN			8

diff -urN uClibc-0.9.30.1.orig/include/netinet/in.h uClibc-0.9.30.1/include/netinet/in.h

--- uClibc-0.9.30.1.orig/include/netinet/in.h	2009-04-08 09:00:10.926545132 +0200

+++ uClibc-0.9.30.1/include/netinet/in.h	2009-04-08 09:00:26.242514273 +0200

@@ -202,7 +202,7 @@

 #define s6_addr			in6_u.u6_addr8

 #define s6_addr16		in6_u.u6_addr16

 #define s6_addr32		in6_u.u6_addr32

-  };

+  } __attribute__ ((__packed__));

 extern const struct in6_addr in6addr_any;        /* :: */

 extern const struct in6_addr in6addr_loopback;   /* ::1 */

@@ -229,7 +229,7 @@

 			   __SOCKADDR_COMMON_SIZE -

 			   sizeof (in_port_t) -

 			   sizeof (struct in_addr)];

-  };

+  } __attribute__ ((__packed__));

 #endif

 /* Ditto, for IPv6.  */

@@ -240,7 +240,7 @@

     uint32_t sin6_flowinfo;	/* IPv6 flow information */

     struct in6_addr sin6_addr;	/* IPv6 address */

     uint32_t sin6_scope_id;	/* IPv6 scope-id */

-  };

+  } __attribute__ ((__packed__));

 /* IPv4 multicast request.  */

@@ -251,7 +251,7 @@

     /* Local IP address of interface.  */

     struct in_addr imr_interface;

-  };

+  } __attribute__ ((__packed__));

 struct ip_mreq_source

   {

@@ -263,7 +263,7 @@

     /* IP address of interface.  */

     struct in_addr imr_sourceaddr;

-  };

+  } __attribute__ ((__packed__));

 /* Likewise, for IPv6.  */

 struct ipv6_mreq

@@ -273,7 +273,7 @@

     /* local interface */

     unsigned int ipv6mr_interface;

-  };

+  } __attribute__ ((__packed__));

 /* Multicast group request.  */

@@ -284,7 +284,7 @@

     /* Group address.  */

     struct sockaddr_storage gr_group;

-  };

+  } __attribute__ ((__packed__));

 struct group_source_req

   {

@@ -296,7 +296,7 @@

     /* Source address.  */

     struct sockaddr_storage gsr_source;

-  };

+  } __attribute__ ((__packed__));

 /* Full-state filter operations.  */

@@ -315,7 +315,7 @@

     uint32_t imsf_numsrc;

     /* Source addresses.  */

     struct in_addr imsf_slist[1];

-  };

+  } __attribute__ ((__packed__));

 #define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \

 				  - sizeof (struct in_addr)		      \

@@ -336,7 +336,7 @@

     uint32_t gf_numsrc;

     /* Source addresses.  */

     struct sockaddr_storage gf_slist[1];

-};

+} __attribute__ ((__packed__));

 #define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \

 				   - sizeof (struct sockaddr_storage)	      \

@@ -460,14 +460,14 @@

   {

     struct in6_addr ipi6_addr;	/* src/dst IPv6 address */

     unsigned int ipi6_ifindex;	/* send/recv interface index */

-  };

+  } __attribute__ ((__packed__));

 /* IPv6 MTU information.  */

 struct ip6_mtuinfo

   {

     struct sockaddr_in6 ip6m_addr; /* dst address including zone ID */

     uint32_t ip6m_mtu;		   /* path MTU in host byte order */

-  };

+  } __attribute__ ((__packed__));

 #if 0 /*def __USE_GNU*/

diff -urN uClibc-0.9.30.1.orig/include/netinet/ip.h uClibc-0.9.30.1/include/netinet/ip.h

--- uClibc-0.9.30.1.orig/include/netinet/ip.h	2009-04-08 09:00:10.926545132 +0200

+++ uClibc-0.9.30.1/include/netinet/ip.h	2009-04-08 09:00:26.242514273 +0200

@@ -63,7 +63,7 @@

     u_int32_t saddr;

     u_int32_t daddr;

     /*The options start here. */

-  };

+  } __attribute__ ((__packed__));

 #ifdef __USE_BSD

 /*

@@ -127,7 +127,7 @@

     u_int8_t ip_p;			/* protocol */

     u_short ip_sum;			/* checksum */

     struct in_addr ip_src, ip_dst;	/* source and dest address */

-  };

+  } __attribute__ ((__packed__));

 /*

  * Time stamp option structure.

diff -urN uClibc-0.9.30.1.orig/include/netinet/ip_icmp.h uClibc-0.9.30.1/include/netinet/ip_icmp.h

--- uClibc-0.9.30.1.orig/include/netinet/ip_icmp.h	2009-04-08 09:00:10.926545132 +0200

+++ uClibc-0.9.30.1/include/netinet/ip_icmp.h	2009-04-08 09:00:26.242514273 +0200

@@ -43,7 +43,7 @@

       u_int16_t	mtu;

     } frag;			/* path mtu discovery */

   } un;

-};

+} __attribute__ ((__packed__));

 #define ICMP_ECHOREPLY		0	/* Echo Reply			*/

 #define ICMP_DEST_UNREACH	3	/* Destination Unreachable	*/

@@ -199,7 +199,7 @@

 #define	icmp_radv	icmp_dun.id_radv

 #define	icmp_mask	icmp_dun.id_mask

 #define	icmp_data	icmp_dun.id_data

-};

+} __attribute__ ((__packed__));

 /*

  * Lower bounds on packet lengths for various types.

diff -urN uClibc-0.9.30.1.orig/include/netinet/tcp.h uClibc-0.9.30.1/include/netinet/tcp.h

--- uClibc-0.9.30.1.orig/include/netinet/tcp.h	2009-04-08 09:00:10.926545132 +0200

+++ uClibc-0.9.30.1/include/netinet/tcp.h	2009-04-08 09:00:26.242514273 +0200

@@ -86,7 +86,7 @@

     u_int16_t th_win;		/* window */

     u_int16_t th_sum;		/* checksum */

     u_int16_t th_urp;		/* urgent pointer */

-};

+} __attribute__ ((__packed__));

 # else /* !__FAVOR_BSD */

 struct tcphdr

@@ -121,7 +121,7 @@

     u_int16_t window;

     u_int16_t check;

     u_int16_t urg_ptr;

-};

+} __attribute__ ((__packed__));

 # endif /* __FAVOR_BSD */

 enum

@@ -226,7 +226,7 @@

   u_int32_t	tcpi_rcv_space;

   u_int32_t	tcpi_total_retrans;

-};

+} __attribute__ ((__packed__));

 /* For TCP_MD5SIG socket option.  */

@@ -239,7 +239,7 @@

   u_int16_t	tcpm_keylen;			/* Key length.  */

   u_int32_t	__tcpm_pad2;			/* Zero.  */

   u_int8_t	tcpm_key[TCP_MD5SIG_MAXKEYLEN];	/* Key (binary).  */

-};

+} __attribute__ ((__packed__));

 #endif /* Misc.  */

diff -urN uClibc-0.9.30.1.orig/include/netinet/udp.h uClibc-0.9.30.1/include/netinet/udp.h

--- uClibc-0.9.30.1.orig/include/netinet/udp.h	2009-04-08 09:00:10.926545132 +0200

+++ uClibc-0.9.30.1/include/netinet/udp.h	2009-04-08 09:00:26.242514273 +0200

@@ -61,7 +61,7 @@

   u_int16_t uh_dport;		/* destination port */

   u_int16_t uh_ulen;		/* udp length */

   u_int16_t uh_sum;		/* udp checksum */

-};

+} __attribute__ ((__packed__));

 #else

@@ -71,7 +71,7 @@

   u_int16_t dest;

   u_int16_t len;

   u_int16_t check;

-};

+} __attribute__ ((__packed__));

 #endif

 #define SOL_UDP            17      /* sockopt level for UDP */