Mercurial > hg > octave-lyh > gnulib-hg
changeset 9720:46b3aff8518a
Documentation about problem on MacOS X 10.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 24 Feb 2008 15:31:00 +0100 |
parents | ec87f62b97b8 |
children | 1d443a80afc4 |
files | ChangeLog doc/posix-functions/environ.texi |
diffstat | 2 files changed, 16 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2008-02-24 Bruno Haible <bruno@clisp.org> + + * doc/posix-functions/environ.texi: Document the MacOS X problem. + 2008-02-20 Bob Proulx <bob@proulx.com> Enable use of older two part flavor 'git describe'.
--- a/doc/posix-functions/environ.texi +++ b/doc/posix-functions/environ.texi @@ -16,6 +16,18 @@ This variable is missing on some platforms: MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, IRIX 6.5, OSF/1 5.1, Cygwin. @item +On MacOS X 10, this variable is not declared. Up to MacOS X 10.4, one can use +@smallexample +extern char **environ; +@end smallexample +to get the variable declared. This does not work any more, however, in +shared libraries on MacOS X 10.5. Here is a workaround: Instead, one can use +@smallexample +#include <crt_externs.h> +#define environ (*_NSGetEnviron()) +@end smallexample +This works at least on MacOS X 10.3 and newer. +@item The address of this variable is not a compile-time constant on some platforms: mingw. @end itemize