[ANNOUNCEMENT] New: {libtool2.2/libltdl7}-2.2.2-1
Charles Wilson
cygwin@cwilson.fastmail.fm
Sun Apr 6 23:59:00 GMT 2008
GNU libtool is a generic library support script. Libtool hides the
complexity of using shared libraries behind a consistent, portable
interface.
This is a new major release, the first official cygwin release from the
upstream 2.2 branch. As such, this release announcement is rather wordy
-- but PLEASE note the WARNING below.
This release was built from the pristine upstream source; for the first
time, there are no cygwin-specific patches.
--------------------------------------------------
--- WARNING ---
--------------------------------------------------
DO NOT install both libtool1.5 and libtool2.2. If you already have
libtool1.5 installed, you should
(a) run setup.exe and uninstall libtool1.5 (but you can keep libltdl3
installed)
(b) run setup.exe again and install libtool2.2 (and libltdl7)
The libtool1.5 and libtool2.2 packages conflict, but cygwin's installer
(setup.exe) is not yet capable of detecting or dealing with conflicts of
this sort. You may install the runtime libraries from both versions:
libltdl3-1.5.x-y
libltdl7-2.2.x-y
as the runtime library packages are specifically constructed so that
they can coexist. However, the development packages
libtool1.5-1.5.x-y
libtool2.2-2.2.x-y
can not both be installed at the same time. If you have any issues, the
safest "recovery" procedure is to use the setup.exe program to uninstall
both libtool1.5 and libtool2.2 packages (leave the libltdl* packages
alone; they are fine). Then, run setup.exe again, and explicitly install
either libtool1.5 or libtool2.2.
Note that there has already been reported to the mailing list an issue
with regards to cygport: The cygport package explicitly requires
libtool1.5, which may cause problems if you have cygport installed, and
attempt to uninstall libtool1.5. We hope to resolve this issue soon.
--------------------------------------------------
--- From the official libtool-2.2 announcement ---
--------------------------------------------------
Following almost 4 grueling years in development, the Libtool Team is
pleased to announce the final release of GNU Libtool 2.2.
GNU Libtool hides the complexity of using shared libraries behind a
consistent, portable interface. GNU Libtool ships with GNU libltdl,
which hides the complexity of loading dynamic runtime libraries
(modules) behind a consistent, portable interface.
This is the first stable release from the Libtool 2.2 branch. Libtool
2.0 was never released, as by the time 1.9f was released from the stable
branch, the head of the development branch had already become much more
stable than the supposed stable branch!!
Compared to the old stable Libtool 1.5.x branch, the new stable 2.2
branch has been almost entirely rewritten, and has too many improvements
and brand new features to enumerate here. Please see the NEWS file in
the distribution for a comprehensive list of user visible changes.
Despite a new and improved M4 interface to Libtool from Autoconf, every
effort has been made to retain backwards compatibility with the 1.5.x
interfaces. Autoupdate (which ships with Autoconf) will help you upgrade
your configure.ac to the new interface when you are ready to migrate.
[ed: There was no cygwin release corresponding to the upstream
libtool-2.2[.0] release, because a number of regressions related to
cygwin cropped up. These regressions were corrected in the upstream
libtool-2.2.2 release.]
--------------------------------------------------
--- TEST RESULTS ---
--------------------------------------------------
"old" testsuite -- this is the same testsuite that has been used in
libtool1.5.x for years
====================
All 115 tests passed
====================
"new" testsuite -- this is a dejaGnu-based testsuite that did not exist
in libtool1.5.
ERROR: 63 tests were run,
5 failed (3 expected failures).
3 tests were skipped.
The two "unexpected" failures are
21: Link order of deplibs.
66: Run tests with low max_cmd_len
(where #66 just sees the #21 failure again). But on cygwin, #21 is not
actually unexpected.)
--------------------------------------------------
--- CHANGES ---
--------------------------------------------------
As stated in the upstream announcement, there are too many improvements
and changes between libtool-1.5.x and libtool-2.2.x to list here. There
are some backwards incompatibilities in libltdl (which is why the DLLNUM
has been bumped from "3" to "7"). However, basic libtool usage remains
backwards compatible, although new and improved interfaces are also
available. For example, in configure.ac instead of
AC_LIBTOOL_DLOPEN
AC_LIBTOOL_WIN32_DLL
dnl which must be invoked before:
AC_PROG_LIBTOOL
You can simply do:
LT_INIT([dlopen win32-dll])
One other behavior change: in the past, the libtool script was generated
when a client packages' configure script was run, and was generated "ïn
the middle" of that execution. This meant that often, client packages
would explicitly "parse" the libtool script itself, during later parts
of the configure -- or, sometimes compile and/or link tests required the
use of the generated libtool.
That is no longer the default behavior. With libtool2.x, the libtool
script itself is not generated until the AC_OUTPUT() phase of the
configure script execution. If the previous behavior is required, you
can force the libtool generation to occur earlier by using the LT_OUTPUT
macro.
For an exhaustive list of changes, please read the NEWS file and the new
info documentation (`info libtool').
--
Chuck
====================================================================
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.
MAKE SURE to uninstall libtool1.5 (if present) before installing libtool2.2.
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