Mail Archives: cygwin/2004/02/09/22:14:46
cygipc and cygutils have some incompatibilities with cygwin-1.5.7; this
updated version resolves those conflicts. Note that you will probably
need to re-install cygwin-1.5.7 after upgrading cygipc -- this is an
unfortunate consequence of the pre-existing conflict between
cygipc-[OLDVERSION] and cygwin-1.5.6+.
A list of the specific changes ( for both cygipc-2.03-2 and
cygutils-1.2.4-1 ) appears below.
This is, in all likelihood, the LAST release of cygipc. The cygserver
implementation now shipped with cygwin-1.5.7 and later is a much better,
and better-supported, implementation; all existing packages which rely
on cygipc should begin transitioning to cygserver. For package
maintainers and developers, this will probably boil down to, in most
case, simply: (a) recompiling, (b) installing and running the cygserver
daemon, (c) changing documentation, and (d) getting used to answering
new questions from your users about "what happened to cygipc" <g>
====
To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page. This downloads setup.exe to your
system. Then, run setup and answer all of the questions.
!!!!!!
NOTE: you will need to run setup TWICE. First, update/install
cygipc-2.03-1 and cygutils-1.2.4-1. Let setup run to completion. Then,
run setup AGAIN -- and this time, choose "reinstall" for cygwin-1.5.7
(or whatever is your current version of the cygwin package).
!!!!!!
If you have questions or comments, please send them to the Cygwin
mailing list at: cygwin AT cygwin DOT com .
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--
Charles Wilson
Here are the changes in these two packages:
1) cygipc-based IPC utilities (ipcs, ipcrm, semtool, etc) are now
provided by the cygipc package itself -- and the names have been munged:
ipcscygipc + ipcscygipc.8 manpage
ipcrmcygipc + ipcrmcygipc.8 manpage
semtoolcygipc
msgtoolcygipc
shmtoolcygipc
semstatcygipc
2) cygipc header files are now installed in /usr/include/cygipc/sys. IF
(and only if) /usr/include/sys/ipc.h and friends do not exist, then a
postinstall script creates symlinks to the cygipc versions. This means
if you really want to be sure that you're compiling/linking against
cygipc, you need to add -I/usr/include/cygipc to your compile command.
3) cygutils no longer provides ipcs or ipcrm, as (a) cygipc now provides
cygipc-based versions, and (b) cygwin itself provides cygserver-based
versions.
4) cygutils provides cygserver-based versions of
semtool
msgtool
shmtool
semstat
5) cygutils provides 'ipck' and 'ipckcygipc' -- a useful shell script
for checking on/killing IPC objects. Obviously, one uses the cygserver
tools, the other uses the cygipc tools.
6) Cygipc will be going into deep freeze -- still supported for legacy
applications, but all applications are highly encouraged to switch to
the FAR better implementation provided by cygserver.
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