1 NEWS - list of user-visible changes between releases of GNU Libtool
3 New in 2.1c: 2012-??-??; CVS version 2.1c, Libtool team:
7 - argz.c, lt__dirent.c and lt__strl.c are correctly distributed with
8 parent projects using nonrecursive libltdl.
10 New in 2.1b: 2008-02-01; CVS version 2.1a, Libtool team:
12 * Important incompatible changes and obsoleted features:
14 - Removed deprecated APIs from libltdl: lt_dlcaller_register,
15 lt_dlhandle_next, lt_dlhandle_find, lt_dlforeach, lt_dlmutex_register,
16 lt_dlmutex_lock, lt_dlmutex_unlock, lt_dlmutex_seterror,
17 lt_dlmutex_geterror, lt_dlmalloc, lt_dlrealloc, lt_dlfree.
18 - The Libtool and libltdl macros and the testsuite now assume a C89
19 environment, consequently do not test for headers such as string.h,
20 strings.h, memory.h any more.
21 - Fix regression in libltdl symbol exports on Cygwin. Side effect:
22 LT_GLOBAL_DATA and LT_SCOPE are now explicitly defined as
23 declspec(dllexport), bypassing auto-export logic on Cygwin.
24 This tracks existing behavior on MinGW.
25 - The libtool script has been optimized a bit for more modern shells.
26 This breaks use of the stdin file descriptor in libtool, and can
27 break if a different shell is used to execute the libtool script
28 than the one it was configured for.
29 - The macros AC_ENABLE_SHARED, AC_DISABLE_SHARED, AC_ENABLE_STATIC, and
30 AC_DISABLE_STATIC have been un-deprecated after deprecation in
32 - The macro LT_WITH_LTDL has been renamed to LTDL_INIT.
33 - Fixed a branch-1-5/HEAD regression to only link uninstalled libraries
34 statically with `-static'. In order to compensate for this, there
35 is a new link flag `-static-libtool-libs' to provide the previous
40 - Fix installation of libltdl so that it does not need Autoconf and
41 Automake installed, in order to be usable in another package. This
42 lifts the restrictions introduced in 1.9b.
43 - Default convenience or installable libltdl builds can optionally
44 be declared using new `convenience' or `installable' options to the
45 LTDL_INIT macro (as an alternative to individual LTDL_CONVENIENCE
46 or LTDL_INSTALLABLE invocations).
47 - New configure-time options to allow libltdl parent project builder
48 to choose between installed and shipped libltdl, when invoking
49 LTDL_INIT: --with-included-ltdl, --with-ltdl-include,
51 - New LT_CONFIG_LTDL_DIR macro to specify a different directory name
52 for a convenience libltdl.
53 - libtoolize has been completely overhauled.
54 - `libtoolize --install' now also installs `install-sh'.
55 - New libtoolize options: --non-recursive, --recursive, --subproject.
56 These options control the way libltdl is installed into a package by
57 libtoolize. The new recursive and non-recursive build modes for
58 libltdl don't require a subconfigure any more.
59 The Libtool package itself builds libltdl nonrecursively.
60 - The 'nonrecursive', 'recursive' and 'subproject' libltdl build
61 modes are given as LTDL_INIT options.
62 - New make variable LTDLDEPS for use in output_DEPENDENCIES.
63 - New multi-module-loader safe libltdl handle iteration APIs:
64 lt_dlhandle_iterate, lt_dlhandle_fetch, lt_dlhandle_map.
65 - New lt_dlinterface_register to maintain separation of concerns
66 between modules loaded by different libraries.
67 - New lt_dlopenadvise takes a new lt_dladvise type argument, which
68 lets the caller request local or global symbol visibility from the
69 module loader with lt_dladvise_local and lt_dladvise_global
70 respectively. If neither is given, or if lt_dlopen (or lt_dlopenext)
71 are called, then the system default module symbol visibility is used.
72 - The new lt_dladvise_init/lt_dladvise_destroy based APIs also allow
73 caller requests for a filename extension search with lt_dladvise_ext,
74 and for marking a module unloadable with lt_dladvise_resident.
75 - Allow shell special characters like `$' in source file names, but
76 not in object names, to enhance GCJ support.
77 - An entire new Autotest-based testsuite in addition to the old one.
78 Both testsuites have been made more useful for testing
79 cross-compilers. The new testsuite exposes many more issues, but
80 may also be a little rocky on exotic systems.
81 - In 1.9b, a new variable inherited_linker_flags has been added to the
82 libtool library files. This variable takes flags that should be
83 used by dependent libraries and programs, but that do not fit into
84 `dependency_libs' for both clarity and backward-compatibility.
86 * Changes in supported systems or compilers:
88 - Removed bitrotted support for xlc on Mac OS X.
89 - Detection of compiler wrappers distcc/ccache and $host_alias prefix.
90 - Basic support for PIE (position-independent executables).
91 - Support for DragonFly BSD, improved support for FreeBSD.
92 - Improved support for GNU/kFreeBSD and GNU/NetBSD.
93 - Support for Interix 3 (Windows SFU) and newer versions.
94 - Support for AIX 6.1.
95 - Improved support for UnixWare.
96 - Initial support for RDOS.
97 - Initial Support for FC (modern Fortran).
98 - Support for Portland Group compiler, the Sun compiler suite on GNU/Linux,
99 and initial support for the IBM compiler suite on GNU/Linux/ppc.
100 - Support for linux-dietlibc (`diet' as well as `diet-dyn', separately).
101 - Building libltdl with a C++ compiler has been undusted.
102 - On (AIX?,) HP-UX, and OpenBSD, hardcoding has been changed to prefer
103 rpath over absolute dependent library names. This fixes DESTDIR
104 installs, among others, on the non-HP-UX/PA systems.
105 - Use of C++ templates together with shared libraries has been
106 improved on some systems and with some compilers, but is still
107 ongoing work. Feedback is desirable here.
111 - Fix libltdl on static platforms.
112 - Search paths with GCC on multilib systems like x86_64 have been fixed.
113 - Fixed a regression that prevented use of libltdl without autotools.
114 - Fix error with -version-info on systems with version_type=none, such
116 - Fix symbol exporting for cases where command line length limits are
118 - Improve linking with C++ libraries on Solaris with Sun compiler.
119 - Fix installation of libraries that are required by installation
120 commands such as `ln' or `rm'.
121 - More robust parsing of mangled `.la' files inside libltdl, fixing a
122 possible overrun and a crash due to memory exhaustion.
123 - Fix compile command line for gcj on MinGW.
124 - Some configure variables have been renamed to fix caching:
125 lt_prog_compiler_pic_works to lt_cv_prog_compiler_pic_works
126 lt_prog_compiler_static_works to lt_cv_prog_compiler_static_works.
127 - Fix 1.9b regression: lt_dlopen(NULL) works on AIX again.
128 - Loads of smaller bug fixes.
131 New in 1.9f: 2004-10-23; CVS version 1.9e, Libtool team:
132 * Fix a regression in 1.9d, where ECHO was always set to 'echo' and the
133 backslash quoting tests were never run.
134 * Fix a regression in 1.9d, where progpath was used for --no-reexec before it
136 * Fix a regression in 1.9d, which required an installed automake to build the
137 bootstrapped tarball.
138 * Fix hanging bug on MinGW.
140 New in 1.9d: 2004-10-03; CVS version 1.9c, Libtool team:
141 * If non-pic objects were not compiled, and libtool is called in link mode,
142 libtool no longer silently creates an empty archive, but rather falls
144 * When compiling C glue code with $LTCC, libtool now saves the setting of
145 $compiler_flags from the C tag, and passes those flags to $LTCC.
146 * libtool no longer dies when concurrently creating directories with
147 `make -j' on multi-processor hosts.
148 * Return type, and name parameter of lt_dlloader_remove are no longer
150 * Name parameter of lt_dlloader_find is no longer 'const'.
151 * The API for the slist ADT has been updated: slist_new has been replaced
152 by slist_box; slist_unbox and slist_sort are new; the footprint of
153 slist_remove and slist_fnid have changed; SListCallback and SListCompare
154 types have been exchanged. See libltdl/slist.c for documentation.
155 * libltdl is C89 compatible again. lt_dlsymbol type removed, and lt_dlsymlist
156 structure changed to avoid using C99 flexible arrays.
157 * Support self dlopening for executables on cygwin and mingw.
158 * Improved support for linux-gnu/ia64.
159 * Initial support for s390x-ibm-tpf.
160 * Fixed some memory leaks in libltdl.
161 * Improved support for OpenBSD (use rpath instead of hardcoding absolute
164 New in 1.9b: 2004-08-29; CVS version 1.5a, Libtool team:
165 * The /^_?LT_[A-Z_]+$/ namespace is now reserved for Libtool's own macros.
166 If you have any shell variables in this namespace they will need to be
167 renamed. If you have any macros in this namespace please rename them to
168 prevent any possible future clash with libtool supplied macros.
169 * New LT_PREREQ macro for specifying minimum libtool requirement.
170 * New LT_INIT interface replaces AC_PROG_LIBTOOL, AC_ENABLE_SHARED,
171 AC_DISABLE_SHARED, AC_ENABLE_STATIC, AC_DISABLE_STATIC,
172 AC_ENABLE_FAST_INSTALL, AC_DISABLE_FAST_INSTALL, AC_LIBTOOL_DLOPEN,
173 AC_LIBTOOL_WIN32_DLL and AC_LIBTOOL_PIC_MODE. Use autoupdate to modernise
174 your configure.ac files after installing this release.
175 * New LT_LANG interface to enable libtool support for a specific language.
176 * Language support is now only included if your configure.ac enables it,
177 either through a call to AC_PROG_CXX etc. or LT_LANG.
178 * The libtool script will complain if it was built from mismatched ltmain.sh
179 and libtool m4 macro versions.
180 * Like automake, libtoolize no longer installs config.guess and config.sub by
181 default. Use new --install option to get the old behaviour.
182 * libtoolize no longer supports the --ltdl-tar option.
183 * libtool script is now created by config.status. Instead of interrogating
184 `./libtool' from configure.ac after calling AC_PROG_LIBTOOL, use the
185 variable names directly.
186 * libltdl is no longer a self-contained package, and shares configury with
187 the top level directory now.
188 * Shared objects (.lo) are no longer created when `-static' is passed in
190 * New compile mode option `-shared' prevents creation of static objects (.o).
191 * New link mode option `-shared' creates only shared libraries at link time.
192 * If you configure libtool with --disable-shared (or if libtool does not
193 support shared libraries on your platform) trying to build a library using
194 `-shared' is a fatal error.
195 * New link mode option `-weak' tells libtool when not to propogate dependency
196 libraries from dlpreopened modules.
197 * libtoolize installs libtool.m4, (ltdl.m4 if used,) and various supporting
198 m4 definitions to AC_CONFIG_MACRO_DIR.
199 * Mode inferrence removed, shorthand for choosing modes added.
200 * Specifying -allow-undefined is now an error.
201 * Speed up max_cmd_len check.
202 * libltdl can now preopen modules from within a library, and libtool will
203 accept -dlpreopen options when linking either a shared library or a
205 * New function in libltdl: lt_dlhandle_find provides access to module handles
207 * New function in libltdl: lt_dlpreload_open opens all preloaded modules.
208 * libltdl no longer loads shared libraries with global symbol resolution,
209 this caused problems when the symbols were intended to be overriden further
210 up the stack; it is also not recommended practice.
211 * New function in libltdl: lt_dlhandle_first, primes handle iterations (using
212 lt_dlhandle_next) to filter by module interface.
213 * libltdl no longer tries to support multi-threaded programming with
214 lt_dlmutex_register(), which was unusable with POSIX threads anyway.
215 The symbols are deprecated but exported for backwards compatibility.
216 * libltdl no longer uses lt_dlmalloc, lt_dlrealloc and lt_dlfree. The symbols
217 are still exported for backwards compatibility.
218 * The lt_dlinfo struct has a new module field that can be used by dlloaders.
219 * libltdl no longer supports pre-c89 compilers. Some of the pre89 portability
220 functions had compile time bugs in them anyway, so you guys can't have been
222 * make install now deletes preexisting $prefix/share/libtool before installing
224 * Extracting symbols from an import library on cygwin and win32 now works.
225 * Initial support for amigaos-ppc.
226 * Improved support for OpenBSD.
227 * Support for Intel C++ version 8.0.
228 * New support for IBM's xlc and xlc++ on Mac OS X.
229 * Finished support for QNX RTOS.
232 New in 1.5.8: 2004-08-07; CVS version 1.5.7a, Libtool team:
233 * Support for Intel C++ version 8.0.
234 * Improved support for OpenBSD.
235 * Support for xlc on Mac OS X.
236 * Better support for zsh as /bin/sh.
237 * Much faster check for command line length on all BSD systems.
238 * Better Mac OS X/darwin support.
241 New in 1.5.6: 2004-04-11; CVS version 1.5.5a, Libtool team:
242 * Installs libltdl files properly in $prefix/share/libtool/libltdl. 1.5.4
243 did not install them at all.
244 * libltdl correctly guesses the extension for loadable modules again.
246 New in 1.5.4: 2004-04-03; CVS version 1.5.3a, Libtool team:
249 New in 1.5.2: 2004-01-25; CVS version 1.5.0a, Libtool team:
250 * lt_dlrealloc is an official part of the libltdl API.
251 * --tag, --silent and --debug options are preserved and reused when libtool
252 calls itself for relinking etc.
253 * `-pthread' and similar options are honoured when linking shared libraries.
254 * -no-suppress in compile mode shows compiler output for both PIC and non-PIC
256 * New link mode option `-precious-files-regex' to prevent accidental removal
257 of files you want to keep, such as test coverage data, from the temporary
259 * Directories specified in /etc/ld.so.conf are no longer hardcoded on GNU/Linux.
260 * Recognises the 'R' symbol type on Solaris so read-only symbols can be
264 New in 1.5.1: 2003-??-??; CVS version 1.5.0a, Libtool team:
265 * lt_dlrealloc is an official part of the libltdl API.
268 New in 1.5: 2003-04-14; CVS version 1.4e, Libtool team:
269 * First stable release of multi-language architecture.
270 * libtool and libltdl support for Mac OS/X.
271 * libltdl will now use cygwins dlopen API instead of always forcing
273 * Support auto-import patch to binutils on cygwin for much improved dll
277 New in 1.4.3: 2002-10-13; CVS version 1.4.2a, Robert Boehne:
278 * The libltdl subdirectory now bootstraps correctly with Automake 1.5.
279 * srcdir != builddir builds with Automake 1.5 work correctly.
280 * Support for mips-compaq-nonstopux.
281 * New command line argument, --preserve-dup-deps prevents removal of
282 duplicate dependent libraries.
284 New in 1.4d: 2002-01-07; CVS version 1.4c, Libtool team:
285 * Help strings display correctly again.
286 * Better error messages when library linking fails.
287 * Better error messages from libltdl when loading fails.
288 * Better search path management in libltdl with `lt_dlinsertsearchdir' call.
289 * Support /lib/w32api in recent cygwin releases.
290 * Support cross compilation to mingw.
291 * Support for .rc files (Windows resource compiler).
292 * Improved handling of mingw gcc.
293 * Improved handling of $PATH with entries containing spaces.
294 * Improved support for linking with gcc on aix4* and aix5*.
295 * Improved support for GCC 3.0.
296 * Initial support for QNX RTOS, UnixWare 7 and OpenUNIX 8.
297 * Bug fixes to the OpenBSD port.
300 New in 1.4.2: 2001-09-11; CVS version 1.4.1a, Gary V. Vaughan:
301 * libltdl now builds on solaris again
302 * diagnose and warn about not-quite-working combinations of gcc and
304 * Improved OpenBSD support.
305 * Improved cygwin support.
308 New in 1.4.1: 2001-09-03; CVS version 1.4.0a, Libtool team:
309 * Better error messages from libltdl when loading fails.
310 * Don't leave here-doc files behind.
311 * Improved support for OpenBSD.
312 * Libtool will build with autoconf-2.50 and higher.
313 * Plug memory management bugs in libltdl.
314 * Prefer shl_load to dlopen for better operation on HP-UX.
316 New in 1.4b: 2001-07-09; CVS version 1.4a, Libtool team:
317 * Now bootstraps with autoconf-2.50 and automake-1.4-p4.
318 * Always try to build at least a static lib, even if both static and
319 shared libs were disabled.
320 * Full support for C++ compiler.
321 * Support for GNU gcj compiler.
322 * libltdl can now load all modules in a given path according to user
323 supplied criteria with `lt_dlforeachfile' call.
324 * Improved support for AIX ia64, djgpp, HPUX, hurd, OpenBSD, sco3.2*.
325 * Internal mutex handling no longer has namespace clashes on NCR MP-RAS.
326 * New pdemo and tagdemo tests.
329 New in 1.4: 2001-04-25; CVS version 1.3e, Libtool team:
333 New in 1.3d: 2001-04-02; CVS version 1.3c, Libtool team:
334 * ltconfig is no more. Generation of libtool happens directly from
336 * Multithread safe with lt_dlmutex_register callback registration.
337 * New -no-install flag to avoid the use of executable wrapper scripts.
338 * New --with-pic, -prefer-pic and -prefer-non-pic flags to control
339 the generation of PIC/non-PIC code.
340 * Support for hardcoding run-time paths (-R) into libraries.
341 * Support -dlopen and -dlpreopen for libraries.
342 * Libtool now allows you to link shared libraries against static code.
343 * New functions in libltdl:
344 lt_dlgetinfo, lt_dlhandle_next and lt_dlforeach provide access to module
345 specific data in handles.
346 lt_dlcaller_register, lt_dlcaller_set_data and lt_dlcaller_get_data provide
347 management for user storage of per module data.
348 lt_dlloader_next, lt_dlloader_name, lt_dlloader_find, lt_dlloader_add and
349 lt_dlloader_remove can be used for adding new types of module loaders.
350 lt_dladderror, lt_dlseterror integrate user module loaders with lt_dlerror.
351 * "-Xcompiler" and "-Wc," does now work in compile mode, too.
352 * Support recent dlltool formats.
353 * Start of support code for cross-compiling to win32.
354 * libltdl can now be built as a dll with win32.
355 * m4 macros needed to configure libltdl split out into libltdl/ltdl.m4.
356 * New port to NEWS-OS Release 6.
357 * Improved support for darwin (rhapsody), mingw32, NetBSD, Compaq Tru64 V5.0
358 and Digital Unix V4.*.
359 * Initial support for ia64 linux.
360 * Initial support for a.out freebsd shared libs.
361 * Initial support for Paul Sokolovsky's pw32 POSIX over win32 layer.
362 * Many bugfixes (especially in libltdl)
364 New in 1.3b: 1999-07-02; CVS version 1.3a, Libtool team:
365 * Complete inter-library dependencies support. It's now possible
366 to link libtool libraries against other libtool libraries.
367 * Libtool is able to find already-installed libtool libraries,
368 even if they were moved out of their installation directory.
369 * New "-Wc,flag" and "-Xcompiler flag" flags to pass flags
370 directly to the compiler
371 * New "-Wl,flag" and "-Xlinker flag" flags to pass flags
372 directly to the linker
373 * New "-no-fast-install" flag to selectively disable fast-install mode.
374 * Support for installing stripped libraries using GNU strip (install -s).
375 Automake >= 1.5 will install stripped libraries with "make install-strip".
376 * Allow linking shared libraries against static ones
377 on FreeBSD, GNU/Linux, GNU Hurd and Solaris
378 * Support for linking DLLs on Win32
379 * New `clean' mode to delete uninstalled files.
380 * New demos and tests
383 New in 1.3.5: 2000-05-27, CVS version 1.3.4a, Libtool team:
384 * Support for mac OS X (rhapsody).
385 * Support for *-sequent-sysv4.
386 * Support for Cygwin-1.1.0.
387 * Support recent dlltool formats.
390 New in 1.3.4: 1999-12-08, CVS version 1.3.3a, Libtool team:
391 * Support for Compaq Tru64 V5.0.
392 * Improved support for Digital Unix V4.*.
393 * Improved support for NetBSD, FreeBSD and Unixware.
394 * Many fine bugfixes.
396 New in 1.3.3: 1999-07-02, CVS version 1.3.2a, Libtool team:
397 * New `-dlpreopen force' flag to ensure that
398 lt_preloaded_symbols is always defined.
399 * Work around self-dlclose bug in FreeBSD 3.1.
400 * Expand convenience libraries when creating reloadable objects.
401 * Do not forget to import -L flags of convenience libraries.
402 * Do not pass -whole-archive or equivalent to symbol extractor.
403 * Create directory to expand convenience libraries only when needed.
404 * Improved support for Cygwin, DJGPP and NetBSD
407 New in 1.3.2: 1999-05-26, CVS version 1.3.1a, Libtool team:
408 * Avoid circular links of objects and libraries.
409 * Look for dlerror when dlopen was found in -ldl (typo).
410 * Disable shared libraries with broken GNU ld on Solaris.
412 New in 1.3.1: 1999-05-21, CVS version 1.3.0a, Libtool team:
413 * Documentation improvements; recommend automake users to insert libtool.m4
415 * AC_LIBLTDL_CONVENIENCE and AC_LIBLTDL_INSTALLABLE now set INCLTDL.
416 * New port to NEC UX/4800.
417 * cygwin-b20.1 passes all tests.
418 * Slightly improved BeOS support.
419 * Many AIX 4.3.2 test failures have gone.
420 * Pass unknown -L arguments through to the linker (for -LANG:* support).
421 * Close a security hole with mode 777 directory during libltdl installation.
422 * Fixed the infamous ``ifelse'' bug in libtool.m4
424 New in 1.3: 1999-04-29, Libtool team:
425 * This is just a summary of the changes since 1.2.
426 See the news of intermediate alpha releases below for details.
427 * Support for convenience archives.
428 * New maintainers. Anonymous CVS and home page at gnu.org.
429 * Portable dlopening interface with libltdl, new -module flag.
430 * Correctly link installed libtool libraries into programs and other
431 libtool libraries. Linking of uninstalled libtool libraries into
432 libraries is under development for 1.4.
433 * Do not drop library dependencies on platforms that allow them.
434 * Linking with uninstalled libraries no longer picks installed ones by
436 * Use libraries from the build tree when running uninstalled
437 executables (may require double linking).
438 * Allow developers to optimize for build-tree executions.
439 * Support -export-symbols-regex for controlled symbol exporting.
440 * Support -R to hardcode directories in library search paths.
441 * New ports, demos and tests. Lots of improvements and bug fixes.
443 New in CVS version 1.2g, Libtool team:
444 * AM_PROG_LIBTOOL is smaller and faster
445 * AC_LIBTL_L_WIN32_DLL is required in configure.in for libtool to
446 attempt to build dlls on win32 hosts
447 * Shared libraries on AmigaOS up to version 4 are now disabled
448 since they don't meet libtool's requirements for shared libraries
449 * -L supports now relative directories
450 * Libltdl has a new license: LGPL with a special exception
451 * Libltdl can be used as stand-alone package
452 * dlopen support for BeOS
453 * Partial support for Motorola System V 4
454 * Improved support for AIX, BeOS, Cygwin, DJGPP, DU, IRIX and HP/UX
455 * Documentation updates
459 New in 1.2f: 1999-03-15; CVS version 1.2e, Libtool team:
460 * libtool will correctly link uninstalled libraries into programs
461 and prefer uninstalled libraries to installed ones
462 * Library paths that are in the system default run-time search path
463 are no longer hardcoded into executables.
464 * New fast installation mode, which links the final executable
465 in order to avoid relinking during installation.
466 Programs in the build-tree are relinked when executed.
467 * New AC_DISABLE_FAST_INSTALL macro to set the default for
468 the fast-install mode to disabled
469 * New -export-symbols-regex flag, to export symbols selectively by
471 * Support -R for specifying run-time path of programs and library dependencies
472 * New -avoid-version option to avoid versioning for libraries
473 * libtool module names no longer need to have a "lib" prefix
474 (requires automake 1.4).
475 * New -thread-safe flag, to build thread-safe libraries
476 * Major improvements in libltdl: API documentation, installable version,
477 support for module search paths, support for lt_dlopen(0),
478 can be embedded into packages as a tar file (libltdl.tar.gz),
479 dynamic buffer allocation and buffer overflow checks,
480 new macro LTDL_SET_PRELOADED_SYMBOLS() which must be used in the
481 main program, dynamic memory allocation functions are user-defineable
482 * New AC_LIBLTDL_CONVENIENCE and AC_LIBLTDL_INSTALLABLE macros, to select
483 convenience and/or installable versions of libltdl.
484 * libltdl is now built and installed unless --disable-ltdl-install
485 * New "-dlopen self" flag for dlopening the executable itself
486 * New AC_LIBTOOL_DLOPEN macro to check for dlopen support,
487 required if you use -dlopen or -dlpreopen
488 * If libtool could not satisfy all dependencies of a module
489 it will only build a static version of it
490 * dld_preloaded_symbols was renamed to lt_preloaded_symbols
492 * Improved support for FreeBSD, AIX, IRIX, OSF, SysV 4.3, HP/UX, DJGPP
493 BSD/OS 4.x and NetBSD
494 * In order for libtool to attempt to link a shared library (dll) on win32
495 platforms, you must pass the -no-undefined flag to libtool in link mode.
496 * The path to GNU ld now works on cygwin-b18 to cygwin-b20.2 at least.
497 * Support for IRIX library versioning.
498 * New demos and tests
501 New in 1.2d: 1998-12-16; CVS version 1.2c, Libtool team:
502 * libtool will correctly link already-installed libraries into programs.
503 * New -module flag, to create loadable modules.
504 * New libltdl, a small library for portable dlopening of modules.
505 It is still undocumented, but you can already find some examples in:
506 * New mdemo directory, with tests of -module and dlopening examples.
507 Be aware that libltdl is only known to work on a few platforms such as
508 GNU/Linux and Solaris2. Some mdemo tests are known to FAIL on several
509 other platforms; please ignore these failures by now (or work to fix
511 * Inter-library dependencies patch finally integrated, but there's
512 still much porting to do. See PORTING for details (some plans for the
513 future in mail/deplibs in the CVS tree).
514 * New option -export-symbols to control symbol exporting when possible.
515 * Fixed -export-dynamic problem with C++ programs in egcs 1.1.
516 * New dlpreopen structure.
517 * libtool now supports `-c -o' and subdirectories in sources and
518 target object names even in platforms whose compilers do not support
519 this. In this case, file locking occurs to avoid problems with
521 * New `echo' variant that should fix most problems with long command
522 lines and broken printf programs.
523 * Support for DG/UX, UnixWare 7.x and FreeBSD 3.0, and improved
524 support for Microsoft Windows
526 * We now have anonymous CVS access to GNU libtool. CVSROOT is
527 :pserver:anoncvs@anoncvs.gnu.org:/gd/gnu/anoncvsroot. The password
528 is empty. The directory is libtool. Check our home-page at
529 http://www.gnu.org/software/libtool/libtool.html for details.
530 * Alexandre Oliva, Thomas Tanner and Gary V. Vaughan have taken over
531 the maintenance of libtool.
532 * Arguments to ltconfig have been changed to allow creation of a
533 libtool C program, totally unusable as of this release.
535 New in 1.2b - 1998-07-01, Gordon Matzigkeit:
536 * Libtool needs a new maintainer, since Gordon Matzigkeit has quit.
537 If you think you can do the job, send mail to bug-libtool@gnu.org.
539 * Support for libtool convenience archives.
541 New in 1.2a - 1998-04-19, Gordon Matzigkeit:
543 * ltconfig accepts an `--output' option to specify the name of the
545 * New `--debug' flag to turn on shell script tracing for libtool,
546 libtoolize, and ltconfig.
547 * Added `libtool --config' to print out all configuration variables.
548 * Support for *-*-hpux11*.
550 New in 1.2 - 1998-03-20, Gordon Matzigkeit:
551 * Minor bug fixes to provide a stable public release.
552 * Libtool no longer cseses Solaris printf to barf due to silly
553 2110-byte static buffers.
555 New in 1.1 - 1998-03-08, Gordon Matzigkeit:
557 * http://www.profitpress.com/libtool/ is libtool's homepage.
558 * `AM_PROG_LIBTOOL' supports turning shared or static libraries off
559 with the `--enable-shared=PKGS' and `--enable-static=PKGS' configure
560 flags. See (libtool)AM_PROG_LIBTOOL.
561 * Use the `AM_DISABLE_SHARED' or `AM_DISABLE_STATIC' macros if you
562 wish to modify the default behaviour of `AM_PROG_LIBTOOL' for your
564 * New rules for `AM_PROG_LD' to use gcc's `-print-prog-name' flag in
565 order to find ld, if possible.
566 * Suppress duplicate compiler output during `compile' mode.
567 * Deleted `dlname' mode. Dlopen applications should only use the
568 runtime search method described in (libtool)Finding the dlname.
569 * Experimental support for dynamically loaded modules, even on
570 static-only platforms, via new `-dlopen' and `-dlpreopen' link
572 * `compile' mode honours the `-static' flag to prevent libtool
573 from building PIC objects.
574 * New `execute' mode to support debugging uninstalled libtool
575 libraries and executables.
576 * `-allow-undefined' is now the default. You can use `-no-undefined'
577 to declare that a shared library is completely self-contained.
578 * Inter-library dependencies are automatically handled when linking
579 against an uninstalled `.la' file.
580 * New `-all-static' flag to prevent any dynamic linking. The regular
581 `-static' flag now just prevents dynamic linking of libtool libraries.
582 * New `-release' flag to encode release numbers into libtool
583 libraries. This breaks binary compatibility, but is useful for
584 libraries whose interfaces change very frequently. See
586 * The `-rpath' flag can be used to hardcode absolute directories when
587 linking executables using libtool.
588 * New robust quoting code to handle any metacharacters passed in
589 arguments to libtool commands.
590 * Full support for broken collect2 on AIX 3. Shared libraries
591 can now be built with all working versions of GCC on AIX.
592 * Shell script speed optimizations for old and buggy /bin/sh systems,
593 such as HP-UX 9 and SunOS 4.1.4.
594 * Maybe use `_libs' as a temporary libtool directory instead of `.libs'
595 in order to cope with MS-DOS filenames.
596 * Portability fixes for Windows NT.
597 * Refuse to create libtool libraries that don't begin with `lib'.
598 This allows us to correctly handle OSes that don't have the `lib'
599 prefix by default, such as OS/2.
600 * Support for *-*-amigaos*, *-*-os2*, *-*-sysv4.2uw2*, and *-*-uts4*.
602 New in 1.0 - 1997-07-08, Gordon Matzigkeit:
604 * Better configuration test to find the system linker. The old test
605 was failing because people frequently install GNU ld, but don't
606 necessarily configure GCC to use it.
607 * Automake support for Libtool now uses the LTLIBRARIES primary. See
608 the Automake documentation for more information.
609 * Added new `--disable-static' flag to disable building static
610 libraries on platforms that have shared libs.
611 * New `-allow-undefined' link flag to build shared libs that contain
612 references to unresolved symbols.
613 * Removed all support for creating static-only libraries.
614 * Basic support for dynamically loaded modules: new `-export-dynamic'
615 linking flag and corresponding `dlname' mode.
616 * New `--features' flag to display configured libtool attributes.
617 * Added support for installing libtool objects, both in absolute and
618 relative directories.
619 * Support *-*-linux-gnu* as an alias for *-*-linux*.
620 * Support for *-*-openbsd* and *-*-freebsd3*.
622 New in 0.9 - 1997-02-03, Gordon Matzigkeit:
624 * The libtool demo now uses the libm cos(3) function, to demonstrate
625 inter-library dependencies.
626 * The PLATFORMS file has been moved to doc/platforms.texi.
628 New in 0.8 - 1997-01-26, Gordon Matzigkeit:
629 * Bug fixes, and more documentation.
630 * Basic support for other language compilers (C++, Fortran, and
631 preprocessed assembler).
632 * Libtool is now more persistent when linking with the `-static'
634 * New test for hardcoding system linkers, to verify that libtool
635 neither creates incorrect binaries, nor takes unnecessary
636 precautions while linking against uninstalled shared libraries.
637 * For clarity, the demo subdirectory no longer uses ansi2knr, and has
638 been rewritten to avoid ANSI-only constructs.
639 * Support for *-*-irix5, *-*-irix6*, and *-*-sco3.2v5*.
641 New in 0.7 - 1996-12-08, Gordon Matzigkeit:
642 * Total rewrite of libtool, along with a new model for library building.
643 * Completely rewritten documentation for the new paradigm.
644 * Sane handling of broken system linkers, such as the ones on AIX
646 * configure mode is now a separate program, `ltconfig'
647 * The libinfo helper script has been incorporated into the main
649 * Automatic mode guessing, based on the command line.
650 * Full support for Automake 1.2 (including ansi2knr features).
651 * Support to create reloadable objects using link mode.
652 * Support for new `-static' linking flag.
653 * Support for stripping libraries during installation.
654 * Library version information is now passed on the command line, not
655 through a version file.
657 Version 0.6 was never released.
660 * Disabled install-progs until next version, when it will be correctly
662 * Clearer library versioning documentation. See (libtool)Versioning.
663 * Renamed gm_PROG_LIBTOOL to AM_PROG_LIBTOOL
664 * Libtool now creates pseudo-objects named foo.lo and pseudo-archives named
665 libfoo.la instead of foo.o and libfoo.a. See the documentation.
666 * libtool compile doesn't interfere with user CFLAGS if they don't
667 conflict with the current objtype. From Karl Berry.
668 * Created new libinfo helper script.
669 * libversion.in files are obsolete -- libtool uses libinfo to read the
671 * Libtool is better at finding its config file and helper scripts.
672 * Support for *-*-gnu*
675 * Bug fixes and new regression tests
676 * On unsupported configurations, ``libtool configure'' demotes OBJTYPES to
677 `standard' instead of aborting
678 * Added new object type, `t', for tcov(1) support
679 * Support for *-*-aix3*, *-*-aix4*, *-*-hpux10*, *-*-osf3*, and *-*-solaris2*
682 * Bug fixes and new regression tests
683 * Added new uninstall-libs mode
684 * Added a host argument to configure mode
685 * Fixed debugging/hyper-optimizing flags conflict (from Karl Berry)
686 * Support for --no-whole-archive when needed by GNU ld (from Ulrich Drepper)
687 * Implementation of --enable-linktype, --enable-profile, --enable-shared,
688 --enable-static in gm_PROG_LIBTOOL macro
689 * New `libtoolize' program (modeled after GNU gettext's `gettextize') to help
690 conversion to libtool
691 * New ABOUT-LIBS document for inclusion with libtool-supported packages
694 * Support for *-*-linux
695 * Better checking for GNU ld
696 * Reimplemented the config file so that it corresponds more closely to the
697 variables listed in (libtool)Porting Libtool.
698 * Reimplemented the shared library version scheme. See (libtool)Versioning.
699 * Replaced `--config-file' and `--version-file' options with `--confdir'
700 * Added new install-libs and install-progs modes
703 * First release of libtool
704 * Support for: *-*-freebsd*, *-*-netbsd*, *-*-sunos4*, *-*-ultrix4*