(Earlier, the 14-byte ethernet header screwed this up, this had already been fixed by adding two pad bytes.)
Assumption is that compilers do not align with larger-than-sizeof(type) boundaries.
Pre-tag PRE_PACK_REMOVE. Post-tag POST_TAG_REMOVE.
whenever sys_arch_mbox_wait() and sys_arch_sem_wait() get a message or
semaphore immediately. Updated documentation for this change.
Unix port and Coldfire port have been updated.
Applied a patch from Marc Boucher which has the following changes:
1) Fixed sys_arch.txt documentation to have new return type from
sys_thread_new.
2) Removed unnecessary casts on calling sys_timeout() in certain files.
3) Removed some unnecessary break statements after return statements.
4) Changed sys_timeout_remove() to sys_untimeout().
5) Added some forgotten #ifndef SYS_LIGHTWEIGHT_PROT to memp.c
6) Changed LWIP_DIAG and LWIP_PLATFORM_ASSERT to have do while().
