examples: tests: optimize for NIB

[miri64]

Apparently, I forgot to adapt gnrc_minimal for the NIB (GNRC_IPV6_NC_SIZE does not exist anymore). Reasoning for the values:

• GNRC_IPV6_NIB_NUMOF same as GNRC_IPV6_NC_SIZE
• GNRC_IPV6_NIB_OFFL_NUMOF be able to configure at least one route to a sub-net.

[miri64]

Scrapes off ~700B of RAM, at least on Cortex-M0.

[cladmi]

I see there is also still GNRC_IPV6_NC_SIZE in tests/gnrc_sock_dns/Makefile

[cladmi]

Could you add your the explanation of the GNRC_IPV6_NIB_OFFL_NUMOF value in the commit message body ? It helps when git blaming in the future :)

I would assume the reason we are using 1 here is to allow compiling on smaller boards, right ?

[miri64]

I would assume the reason we are using 1 here is to allow compiling on smaller boards, right ?

Well the name of the example is minimal, and having only one forwarding entry, is the most minimal configuration that still makes sense.

On your other comments will address, just need to finish something else first.

[cladmi]

Well the name of the example is minimal, and having only one forwarding entry, is the most minimal configuration that still makes sense.

Yeah I figured it out after re-reading the name of the example

[miri64]

Comments addressed. The BOARD_INSUFFIENT_MEMORY change is just for testing. I might revert parts of it ;-).

[miri64]

\o/ I reached my optimization goal! We can fit GNRC on a chronos now ^^.

[miri64]

(even in router configuration oO)

[cladmi]

ACK, just needs rebase for murdock

[miri64]

Squashed and rebased.