[collectd] nanosleep configure tests

[Vincent McIntyre]

Hi,

on solaris2.6, nanosleep() comes from libposix4.

This is not caught by the current configure script, would it be
possible to add it?
Here is a post that does this test:
  http://lists.xiph.org/pipermail/icecast-dev/2004-March/000981.html

In that case the patch was:

Index: configure.in
===================================================================
RCS file: /usr/local/cvsroot/icecast/configure.in,v
retrieving revision 1.45
diff -u -r1.45 configure.in
--- configure.in	29 Jan 2004 23:23:52 -0000	1.45
+++ configure.in	7 Mar 2004 08:36:54 -0000
@@ -62,7 +62,9 @@
 dnl Check for types

 dnl Checks for library functions.
-AC_CHECK_FUNCS(localtime_r nanosleep poll)
+AC_CHECK_FUNCS(localtime_r poll)
+AC_SEARCH_LIBS(nanosleep, rt posix4, AC_DEFINE(HAVE_NANOSLEEP, 1,
+    [Define if you have nanosleep]))
 XIPH_NET

 dnl -- configure options --

I looked at configure.in from the 4.9.1 tarball and guessed this might
be enough:

- AC_CHECK_FUNCS(nanosleep, [], AC_CHECK_LIB(rt, nanosleep,
nanosleep_needs rt="yes"], AC_MSG_ERROR(cannot find nanosleep)))
+ AC_CHECK_FUNCS(nanosleep, [], AC_CHECK_LIB(rt posix4, nanosleep,
nanosleep_needs_rt="yes"], AC_MSG_ERROR(cannot find nanosleep)))


I'd be happy to test. I can clone git, but I don't know if I have the
right auto* versions to create configure from configure.in.

Kind regards
Vince