[PATCH v3 00/24] Feature test macros overhaul

[Sebastian Huber]

I tested the Newlib with your change set. The only problem I noticed was 
this:

[749/892] c: rtemsbsd/pppd/auth.c -> 
build/powerpc-rtems4.12-qoriq_t4240rdb/rtemsbsd/pppd/auth.c.17.o
../../rtemsbsd/ftpd/ftpd.c:1999:1: error: conflicting types for 'daemon'
  daemon(rtems_task_argument args __attribute__((unused)))
  ^~~~~~
In file included from 
/opt/rtems-4.12/powerpc-rtems4.12/include/stdio.h:29:0,
                  from ../../rtemsbsd/ftpd/ftpd.c:193:
/opt/rtems-4.12/powerpc-rtems4.12/include/sys/unistd.h:37:5: note: 
previous declaration of 'daemon' was here
  int _EXFUN(daemon, (int nochdir, int noclose));
      ^

This is due to:

-#if defined(__CYGWIN__)
+#if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 500)

I fixed this in our sources.

-- 
Sebastian Huber, embedded brains GmbH

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