obgm

The major problem is that step 4 and step 5 fail: ```bash $ ./configure --with-contiki --disable-a2x |& head -1 configure: WARNING: unrecognized options: --with-contiki, --disable-a2x ``` After cloning the libcoap...

You need to make sure that your `coap_config.h` does not define `HAVE_ARPA_INET_H` if your toolchain does not have `arpa/inet.h`.

Can you confirm that you are testing against a libcoap version that contains commit 4b52182b from 11/3/2017?

Patches 000[2-4] are fine and have been applied. Patch 0001 has a typedef for ssize_t that causes errors on platforms where this is already defined. Moreover, the symbol _HAVE_SYS_TYPES_H is...

1. No, coap_config.h.contiki is hard-coded, and _HAVE_SYS_TYPES_H is not present at all (HAVE_SYS_TYPES_H is indeed, but that's a different symbol). 2. 489eb73 has removed HAVE_SYS_TYPES_H. Did you read the commit...

I do not think so. I have no experience with IOS but I doubt that it provides the common POSIX networking interface required by libcoap. There are Android ports of...

Thanks, this contribution is highly appreciated. Unfortunately, Travis reports this PR to break the Linux port. It would be great if you could take a look into that issue.

My apologies -- I have pushed an old patch to src/block.c which now breaks this PR.

Hi Dave, I had a quick look at the code and would like to process it quickly. Do you see a chance to address Carsten's comments by splitting this PR...

Building with -DWITH_TCP=1 (after fixing the build errors) yields even more warnings.