[Swan-dev] Add -std=c99 to the compiler flags?

[D. Hugh Redelmeier]

| From: Andrew Cagney <andrew.cagney at gmail.com>

| So, is -std=c99 in?

I just scanned the manpage feature_test_macros(7).

It seems that -std=c99 implicitly declares __STRICT_ANSI__.  That name
seems scary.  I mean the STRICT part.  Does that mean we lose things?
Maybe only -pedantic causes that problem.

Have you tried compiling with this flag?  Did anything interesting come
up?

I'm considering if we want _BSD_SOURCE defined (possibly for only one
compilation unit) so that we can use timeradd(3).  To be honest, the
functionality we need seems really easy to implement ourselves.