dlfcn.h and LTDL_LAZY exist; use LTDL_GLOBAL and LTDL_LAZY_OR_NOW.
This test is likely to fail if self-dlopening does not work,
especially because we do not link the program with
-export-dynamic. Let's just hope that platforms whose symbol
names start with underscores will also accept underscores for
dlopen. We should probably use libtool to compile and link this
test, so that we can use -export-dynamic.
avoid introducing multiple --enable options when re-running
config.status
* libltdl/configure.in: if enable_ltdl_* is not set, assume no
* configure.in: if enable_ltdl_install is not set, enable it
always configure libltdl, add libltdl/acinclude.m4 to
ACINCLUDE_M4_LIST, disable installation of libltdl if necessary
* libltdl/Makefile.am: set version info for libltdl.la
* libltdl/configure.in: don't check whether
enable_ltdl_convenience/install was set so that libltdl
can be used as independent package (libltdl.tar.gz) without
the need to use --enable-ltdl*
* libltdl/ltdl.c: minor cleanups, allocate the line cache
dynamically (lt_dlopen)
renamed convenience libltdl, dropped toinst hack for installable
* libltdl/Makefile.am: ditto
* libltdl/configure.in: ditto; abort if none of the macros is used
new macros
* NEWS: ditto
* libltdl/configure.in: if none of the new macros or configure
arguments are used, warn and build convenience library only
* libltdl/Makefile.am: conditionally build convenience libltdl.la
* mdemo/configure.in: use AC_LIBLTDL_CONVENIENCE
* mdemo/Makefile.am: refer to @LIBLTDL@
libltdl must not be renamed; if there's a problem with the install
option, let's fix it, not just work around it by breaking code of
users of the convenience library
* doc/libtool.texi (libltdl interface): removed the line which
promised that lt_dlopen will return NULL if it can't resolve all
symbols
* libltdl/Makefile.am, libltdl/configure.in: fixed build problem:
renamed the convenience library to libltdlc.la and the
installed version to libltdl.la
* ltmain.in (wrapper script): replaced the "T" suffix of the program
file name with a "lt-" prefix
* mdemo/Makefile.am: use libltdlc.la
* tests/Makefile.am, tests/demo-nofast.test: added demo to
test --enable-fast-install=no
when dlopening the executable
* libtool.m4 (AC_LIBTOOL_DLOPEN): removed the redundant "yes: "
prefix for lt_cv_dlopen, renamed lt_cv_dlopen_LIBS
to lt_cv_dlopen_libs (more consistent)
* ltmain.in: implemented -dl[pre]open self, necessary for
lt_dlopen(NULL), generation of exported symbols was broken
* cdemo/foo1.c: renamed to foo.c
* libltdl/ltdl.c: eliminated lt_dltype, in presym_open():
search for @PROGRAM@ if filename == 0, in lt_dlopen():
fixed bug for filename == 0
* libltdl/ltdl.h: use __P macro for lt_dlmalloc/free
* libtool.m4: new macro AC_LIBTOOL_DLOPEN: checks for dlopen
and dlopen(NULL) support
* ltconfig.in: added new variables dlopen and dlopen_self,
--enable-dlopen[-self] flags for AC_LIBTOOL_DLOPEN
* ltmain.in: use dlopen[_self], dlpreopen files if there's no
dlopen support, build lt_preloaded_symbols only if
-dl[pre]open was used, include program symbols if -export-dynamic
was specified and there's no dlopen(NULL) support
* mdemo/configure.in: use AC_LIBTOOL_DLOPEN
* mdemo/main.c: demonstrate lt_dlopen(0)
* *demo/configure.in: use AC_CHECK_LIBM
* doc/libtool.texi: renamed file_magic_command to file_magic_cmd,
renamed archive_sym_cmds to archive_expsym_cmds
* ltconfig.in: ditto
* ltmain.in: ditto
* libltdl/ltdl.c: use lt_dlmalloc/free
* libltdl/ltdl.h: define lt_dlmalloc/free
* libtool.m4: added AC_CHECK_LIBM macro
* ltconfig.in: renamed archive_sym_cmds to archive_expsym_cmds,
added always_export_symbols, export_symbols_cmd, exclude_expsyms,
include_expsyms, removed archive_cmds for cygwin/mingw and AIX,
on Solaris store the exported symbols list in objdir
* ltmain.in: allow -export-symbols for modules, use thread_safe flag,
add include_expsyms to the exported symbols
* demo/Makefile.am: renamed hell.debug to hell.static
(we're demonstrating static linking, not debugging)
* tests/demo*: ditto
* doc/libtool.texi (libltdl): documented new lt_dlopen(NULL)
feature
* libltdl/acconfig.h: required for config.h
* libltdl/configure.in: use config.h
* libltdl/ltdl.c: use config.h, support lt_dlopen(NULL)
(returns a handle for the program itself)
* ltconfig.in: minor reformatting
* ltmain.in: in lt_preloaded_symbols always define
the program's symbols first, for -export-dynamic list all
program symbols together, -export-symbols was broken for
programs, minor reformatting
* mdemo/Makefile.am: renamed mdemo.debug to mdemo.static
* tests/mdemo*: ditto, mdemo.test was completely broken
addition to space as separator, and allow more than one space
between the symbol code and the symbol name; HP/UX's nm, for
example, uses two spaces
* ltconfig.in (global_symbol_pipe): ditto
(bsdi4, deplibs_check_method): variable name was misspelled
* libltdl/configure.in (libltdl_cv_preloaded_symbols): rewrite
test, so as not to depend on the way global_symbol_pipe is
initialized; the current test would get false positives, as
global_symbol_pipe was initialized `x=""', not `x='
Reported by Godmar Back <gback@cs.utah.edu>
1999-02-04 Godmar Back <gback@cs.utah.edu>
* libltdl/ltdl.c (lt_dlopenext): missing space for terminator when
allocating memory for shlib_ext
enabled, create to-be-installed libltdl.la within @TOINST@
directory
(noinst_LTLIBRARIES): even if installation is enabled, build
convenience libltdl.la, otherwise builds of random packages may
fail if the user happens to enable installation
(distclean-hook): wipe out $(TOINST)
* libltdl/configure.in: set TOINST and LIBLIBS as appropriate;
don't set NOINSTLIBS any more
* mdemo/Makefile.am: use libltdl.la
recognize it and fail, better keep using AM_PROG_LIBTOOL until the
next release of automake
* demo/configure.in, cdemo/configure.in: ditto
* depdemo/configure.in, mdemo/configure.in: ditto
that all calls to malloc() are properly cast
(strdup, strchr, strrchr, trim, free_vars): declare as inline
(find_module): allocate filename dynamically; support null dir
(free_vars): free dir and name only if non-null
(lt_dlopen): keep dir as NULL if not given; fix expression that
calculated the size of name; only free and name if non-null
(lt_dlopenext): allocate tmp dynamically
* demo/configure.in: likewise
* depdemo/configure.in: likewise
* libltdl/configure.in: likewise
* mdemo/configure.in: likewise
* libltdl/ltdl.c: in find_module() check whether libdir is defined,
tryall_dlopen(): move deallocation of an already opened handle
to lt_dlopen(), allocate the directory in lt_dlopen() dynamically,
minor cleanups, fixed memory leak (name)
* libtool.m4: renamed all AM_ macros to AC_ and added aliases for
compatibilty, updated AC_SYS_NM_PARSE (no undefined symbols,
don't count the symbols)
* ltconfig.in: added thread_safe_flag_spec (not used yet),
added generic variable for linker options "linkopts" in
all archive_cmds
* ltmain.in: added -thread-safe flag (unused)
added function lt_dlopenext(), removed reference to
LTDL_PRELOADED_SYMBOLS in LTDL_SET_PRELOADED_SYMBOLS
* libltdl/ltdl.c: partially reverted Alexandre's dynamic string
allocation change (it was not necessary and the code was unreadable),
cleanups, removed usr_search_path_size, renamed usr_search_path
to user_search_path, in find_module() also check for moved
modules, merged find_file() and find_library(),
added lt_dlopenext(), in lt_dladdsearchdir() no longer reset
the search path if 'search_dir' == NULL and don't use realloc()
(might not be available on all platforms),
removed __P((void)) in the declaration of lt_dlgetsearchpath()
* libltdl/ltdl.h: added lt_dlopenext()
* ltconfig.in: AIX archive commands were broken,
fixed a MAJOR bug in global_symbol_pipe which caused
"demo-shared.test;demo-make.test" to fail (libtool must not extract
undefined symbols of libraries, i.e. symcode must not contain 'U')
* tests/Makefile.am (clean-local): "make distclean" in cdemo, too
handle, don't reset its name nor add it to the list, and free the
name we have allocated
Reported by Edouard G. Parmelan <Edouard.Parmelan@France.NCR.COM>
extension
* libltdl/ltdl.c (lt_dlopen): if a .la file name is given, that's
all. Otherwise, lt_dlopen now tries to append .la first. If this
fails, it tries the given filename, and, at last, tries to append
the native library extension to the given filename.
* doc/libtool.texi (lt_dlopen): explain new lookup strategy
* mdemo/configure.in (AC_C_CONST): ditto
* libltdl/configure.in (AC_C_CONST, AC_C_INLINE): ditto
* libltdl/ltdl.c (LTDL_FILENAME_MAX): use FILENAME_MAX if defined
(FILENAME_MAX): replace all explicit uses with LTDL_FILENAME_MAX
(presym_free_symlists, trim): don't return void, for portability
(lt_dlgetsearchpath): replace (void) with __P((void))
HAVE_PRELOADED_SYMBOLS): test whether we support -dl*open
* libltdl/ltdl.c (!HAVE_PRELOADED_SYMBOLS, lt_preloaded_symbols):
define it to an empty list if libtool won't generate it, so as to
avoid link errors. This will cause silent dlopening failures, but
maybe this is better than failing to link the program...
without arguments, that calls lt_dlpreopen_default_ with
lt_dlpreloaded_symbols
* libltdl/ltdl.c (lt_dlpreopen_default_): renamed from
lt_dlpreopen_default
system-dependent extension of shared libraries
(libltdl_cv_shlibpath_var, LTDL_SHLIBPATH_VAR): system-dependent
run-time shared library search path
* libltdl/ltdl.c (dldpre_init, dldpre_exit): unrelate init/exit
from add/remove symlists, so one may add dld_preloaded_symbols
from main(), when only a library will call dldpre_init
(lt_dlopen): use LTDL_SHLIBPATH_VAR, if defined, as secondary
search path. Also, if a requested .la file cannot be found, try
with the LTDL_SHLIB_EXTension instead.
depdemo commented out, so that `dist' works before `check'
(BUILD_LTDL): will contain libltdl if --enable-ltdl-install
* Makefile.am (DIST_SUBDIRS): expand SUBDIRS and add depdemo,
commented out
(SUBDIRS): add $(BUILT_LTDL)
* libltdl/Makefile.am (EXTRA_LTLIBRARIES): add libtest.la, the
same as libltdl but always a convenience library. Not built by
default. Both libraries now depend on the libtool script, that
depends on ../libtool and is rebuilt when needed
* mdemo/Makefile.am (mdemo, mdemo.debug): depend on and link with
../libltdl/libtest.la, that is rebuilt if needed
(mdemo_LDADD): removed $(LIBADD_M), to avoid silent failures
(foo1.la): renamed from libfoo1.la; test removing the lib prefix
* mdemo/foo1.c: renamed libfoo1_LTX symbols to foo1_LTX
* mdemo/main.c: don't include string.h nor math.h, nor refer to
sin nor cos
* tests/mdemo-exec.test: renamed libfoo1.la to foo1.la
* tests/mdemo-inst.test: ditto
and don't redefine it if already defined; default to 1024, as on
most systems
(LT_SYMBOL_LENGTH): renamed from MAX_SYMBOL_LENGTH
(LT_SYMBOL_OVERHEAD): new macro, that accounts for the size of
the _LTX_ separator and the initial underscore
(lt_dlsym): sym now points to a stack buffer (lsym) if possible,
or is dynamically allocated. If allocation fails, a
buffer_overflow_error is returned.
old-fashioned archive, use a copy of libobjs saved before
convenience libraries are appended
* libltdl/ltdl.h (_LTDLL_EXPORT, _LTDLL_IMPORT): use cygwin or
unix library import/export primitives; this may be convenient for
people willing to create DLLs
(_LTDLL_EXTERN): select _LTDLL_EXPORT or _LTDLL_IMPORT depending
on _LTDL_COMPILE_
* libltdl/ltdl.h, libltdl/ltdl.c (lt_dlpreopen): new function,
that replaces the current preloaded_symbols list with its
argument, and returns the old value, initially NULL
(dldpre_init): don't refer to dld_preloaded_symbols any more
(dldpre_open, dldpre_sym): search preloaded_symbols
(lt_dlpreopen_default): call lt_dlpreopen with
dld_preloaded_symbols, that is declared as extern; it should be
called from the main program or from some static library without
-no-undefined
(lt_dlerror): new function, that returns the error message for the
last error occurred; the error message is kept in the static
variable last_error
* libltdl/configure.in (enable-ltdl-install): moved back from
enable-install; other packages might use enable-install already,
better have fine grained control over this.
* libltdl/Makefile.am (libltdls.la): discarded
* libltdl/Makefile.am (CFLAGS): ditto
* libltdl/configure.in: check for memory.h, rindex() and
dlpreopening. Fixed NEED_USCORE caching policy.
* libltdl/ltdl.h (lt_dlsym): make the name argument const
* libltdl/ltdl.c (types): new variable: head of list of available
dlopening mechanisms
(lt_dltype_t): interface of a dlopening mechanism, with pointers
to functions for init, exit, open, close and sym
(lt_dlhandle_t): added pointer to interface type
(strdup): don't name it strdup; it can be troublesome
(strrchr): ditto; use rindex if available
(LIBTOOL_STATIC): check HAVE_DLPREOPEN instead, and move to the
end of the file, so that it becomes the header of the list
(all): renamed all interface-implementation functions, to avoid
name clashes, and created lt_dltype_t nodes for all of them
(lt_dlinit): initialize all available interfaces; remove those
that fail from the list. Return failure only if no interfaces
could be initialized.
(lt_dlexit): return number of failures
(tryall_dlopen): try to open the library with all available
interfaces
(lt_dlopen): use tryall_dlopen; increased size of fixed buffers.
We should probably make these bound-checked or dynamically
allocated for the final release! Fix bug when filename did not
contain slashes; should we check for `\\' too? Try old_library if
everything else fails.
(lt_dlclose): use the interface type for closing
(lt_dlsym): make `symbol' const, use interface type for looking up
* mdemo/Makefile.am: moved mdemo/modules/* back into mdemo
(SUBDIRS): removed
(libfoo2_la_LDFLAGS): added -static; nice test. However, since it
causes -lm to linked into hell*, it causes tests that should fail
to pass
(noinst_HEADERS): no need to install foo.h
* mdemo/configure.in: remove modules/Makefile
tests/mdemo-exec.test: updated accordingly
* mdemo/Makefile.am: ../libltdl is within $(srcdir)
* libltdl, Makefile.am: added libltdl (a system independent
dlopen wrapper library extracted from mdemo)
* ltmain.in: added -module flag for compiling and linking of
modules. If enabled it compiles always both .o (with -DLT_RENAME)
and .lo files
* mdemo: modified mdemo to work with libltdl
* tests/ltdl*: added tests for libltdl
