slirp: replace QEMU_BUILD_BUG_ON with G_STATIC_ASSERT

to remove another dependency on qemu.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

slirp/ip.h

@@ -229,8 +229,8 @@ struct	ipasfrag {
 	struct ip ipf_ip;
 };
 
-QEMU_BUILD_BUG_ON(offsetof(struct ipq, frag_link) !=
-                  offsetof(struct ipasfrag, ipf_link));
+G_STATIC_ASSERT(offsetof(struct ipq, frag_link) ==
+                offsetof(struct ipasfrag, ipf_link));
 
 #define ipf_off      ipf_ip.ip_off
 #define ipf_tos      ipf_ip.ip_tos

slirp/ip6.h

@@ -152,7 +152,7 @@ struct ip6_pseudohdr {
  * If we marked the struct as packed then we would be unable to take
  * the address of any of the fields in it.
  */
-QEMU_BUILD_BUG_ON(sizeof(struct ip6) != 40);
-QEMU_BUILD_BUG_ON(sizeof(struct ip6_pseudohdr) != 40);
+G_STATIC_ASSERT(sizeof(struct ip6) == 40);
+G_STATIC_ASSERT(sizeof(struct ip6_pseudohdr) == 40);
 
 #endif

slirp/ip6_icmp.h

@@ -50,14 +50,14 @@ struct ndp_ra {     /* Router Advertisement Message */
     uint32_t retrans_time;  /* Retrans Timer */
 };
 
-QEMU_BUILD_BUG_ON(sizeof(struct ndp_ra) != 12);
+G_STATIC_ASSERT(sizeof(struct ndp_ra) == 12);
 
 struct ndp_ns {     /* Neighbor Solicitation Message */
     uint32_t reserved;
     struct in6_addr target; /* Target Address */
 };
 
-QEMU_BUILD_BUG_ON(sizeof(struct ndp_ns) != 20);
+G_STATIC_ASSERT(sizeof(struct ndp_ns) == 20);
 
 struct ndp_na {     /* Neighbor Advertisement Message */
 #if G_BYTE_ORDER == G_BIG_ENDIAN
@@ -78,15 +78,15 @@ struct ndp_na {     /* Neighbor Advertisement Message */
     struct in6_addr target; /* Target Address */
 };
 
-QEMU_BUILD_BUG_ON(sizeof(struct ndp_na) != 20);
+G_STATIC_ASSERT(sizeof(struct ndp_na) == 20);
 
 struct ndp_redirect {
     uint32_t reserved;
     struct in6_addr target; /* Target Address */
     struct in6_addr dest;   /* Destination Address */
 };
 
-QEMU_BUILD_BUG_ON(sizeof(struct ndp_redirect) != 36);
+G_STATIC_ASSERT(sizeof(struct ndp_redirect) == 36);
 
 /*
  * Structure of an icmpv6 header.
@@ -113,7 +113,7 @@ struct icmp6 {
 #define icmp6_redirect icmp6_body.ndp_redirect
 };
 
-QEMU_BUILD_BUG_ON(sizeof(struct icmp6) != 40);
+G_STATIC_ASSERT(sizeof(struct icmp6) == 40);
 
 #define ICMP6_MINLEN    4
 #define ICMP6_ERROR_MINLEN  8