K 10
svn:author
V 3
das
K 8
svn:date
V 27
2004-04-25T02:35:42.000000Z
K 7
svn:log
V 615
Make sure that symbols are declared in math.h iff the appropriate
namespaces are visible.  Previously, math.h failed to hide some C99-,
XSI-, and BSD-specific symbols in certain compilation environments.

The referenced PR has a nice listing of the appropriate conditions for
making symbols visible in math.h.  The only non-stylistic difference
between the patch in the PR and this commit is that I superfluously
test for __BSD_VISIBLE in a few places to be more explicit about which
symbols have historically been part of the FreeBSD environment.

PR:		65939
Submitted by:	Stefan Farfeleder <stefan@fafoe.narf.at>

END