Mercurial > hg > octave-nkf > gnulib-hg
changeset 11565:1ffd251f5b05
Add comments.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Wed, 13 May 2009 02:03:30 +0200 |
| parents | ab18b3d5e34a |
| children | 1c79166ed6a4 |
| files | ChangeLog m4/mmap-anon.m4 |
| diffstat | 2 files changed, 14 insertions(+), 1 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2009-05-12 Bruno Haible <bruno@clisp.org> + + * m4/mmap-anon.m4 (gl_FUNC_MMAP_ANON): Add comments. + 2009-05-12 Jim Meyering <meyering@redhat.com> * top/maint.mk: Adjust backslash alignment.
--- a/m4/mmap-anon.m4 +++ b/m4/mmap-anon.m4 @@ -1,9 +1,18 @@ -# mmap-anon.m4 serial 5 +# mmap-anon.m4 serial 6 dnl Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. +# Detect how mmap can be used to create anonymous (not file-backed) memory +# mappings. +# - On Linux, AIX, OSF/1, Solaris, Cygwin, Interix, Haiku, both MAP_ANONYMOUS +# and MAP_ANON exist and have the same value. +# - On HP-UX, only MAP_ANONYMOUS exists. +# - On MacOS X, FreeBSD, NetBSD, OpenBSD, only MAP_ANON exists. +# - On IRIX, neither exists, and a file descriptor opened to /dev/zero must be +# used. + AC_DEFUN([gl_FUNC_MMAP_ANON], [ dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.