Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
/* lt_system.h -- system portability abstraction layer
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|
Copyright (C) 2004 Free Software Foundation, Inc.
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|
|
Originally by Gary V. Vaughan <gary@gnu.org>
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|
NOTE: The canonical source of this file is maintained with the
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GNU Libtool package. Report bugs to bug-libtool@gnu.org.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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|
version 2 of the License, or (at your option) any later version.
|
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As a special exception to the GNU Lesser General Public License,
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|
if you distribute this file as part of a program or library that
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is built using GNU libtool, you may include it under the same
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|
distribution terms that you use for the rest of that program.
|
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This library is distributed in the hope that it will be useful,
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|
but WITHOUT ANY WARRANTY; without even the implied warranty of
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|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
|
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA
|
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*/
|
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|
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
#if !defined(LT_SYSTEM_H)
|
Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
#define LT_SYSTEM_H 1
|
|
|
|
|
|
|
|
|
|
#include <stddef.h>
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
#include <sys/types.h>
|
|
|
|
|
|
|
|
|
|
/* Some systems do not define EXIT_*, even with STDC_HEADERS. */
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
#if !defined(EXIT_SUCCESS)
|
Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
# define EXIT_SUCCESS 0
|
|
|
|
|
#endif
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
#if !defined(EXIT_FAILURE)
|
Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
# define EXIT_FAILURE 1
|
|
|
|
|
#endif
|
|
|
|
|
|
2004-04-08 21:51:15 +08:00
|
|
|
/* Just pick a big number... */
|
|
|
|
|
#define LT_FILENAME_MAX 2048
|
|
|
|
|
|
Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
|
|
|
|
|
/* Saves on those hard to debug '\0' typos.... */
|
|
|
|
|
#define LT_EOS_CHAR '\0'
|
|
|
|
|
|
|
|
|
|
/* LTDL_BEGIN_C_DECLS should be used at the beginning of your declarations,
|
|
|
|
|
so that C++ compilers don't mangle their names. Use LTDL_END_C_DECLS at
|
|
|
|
|
the end of C declarations. */
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
#if defined(__cplusplus)
|
Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
# define LT_BEGIN_C_DECLS extern "C" {
|
|
|
|
|
# define LT_END_C_DECLS }
|
|
|
|
|
#else
|
|
|
|
|
# define LT_BEGIN_C_DECLS /* empty */
|
|
|
|
|
# define LT_END_C_DECLS /* empty */
|
|
|
|
|
#endif
|
|
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|
|
|
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|
|
/* LT_STMT_START/END are used to create macros which expand to a
|
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|
|
|
a single compound statement in a portable way. */
|
|
|
|
|
#if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus)
|
|
|
|
|
# define LT_STMT_START (void)(
|
|
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|
|
# define LT_STMT_END )
|
|
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|
|
#else
|
|
|
|
|
# if (defined (sun) || defined (__sun__))
|
|
|
|
|
# define LT_STMT_START if (1)
|
|
|
|
|
# define LT_STMT_END else (void)0
|
|
|
|
|
# else
|
|
|
|
|
# define LT_STMT_START do
|
|
|
|
|
# define LT_STMT_END while (0)
|
|
|
|
|
# endif
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Canonicalise Windows and Cygwin recognition macros.
|
|
|
|
|
To match the values set by recent Cygwin compilers, make sure that if
|
|
|
|
|
__CYGWIN__ is defined (after canonicalisation), __WINDOWS__ is NOT! */
|
|
|
|
|
#if defined(__CYGWIN32__) && !defined(__CYGWIN__)
|
|
|
|
|
# define __CYGWIN__ __CYGWIN32__
|
|
|
|
|
#endif
|
|
|
|
|
#if defined(__CYGWIN__)
|
|
|
|
|
# if defined(__WINDOWS__)
|
|
|
|
|
# undef __WINDOWS__
|
|
|
|
|
# endif
|
|
|
|
|
#elif defined(_WIN32)
|
|
|
|
|
# define __WINDOWS__ _WIN32
|
|
|
|
|
#elif defined(WIN32)
|
|
|
|
|
# define __WINDOWS__ WIN32
|
|
|
|
|
#endif
|
|
|
|
|
#if defined(__CYGWIN__) && defined(__WINDOWS__)
|
|
|
|
|
# undef __WINDOWS__
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
Factor out the mutex handling and error handling into their own
modules. Mutex handling is not currently useful in combination
with posix threads, and should be easier to replace if it is in a
separate module. Additionally, we can factor out the loaders in
such a way as to depend on only the portability layer and these
new mutex and error modules now:
* libltdl/Makefile.am (pkginclude_HEADERS): Install lt_error.h and
lt_mutex.h to $includedir/libltdl.
(libltdl_la_SOURCES): Build lt_error and lt_mutex objects.
* libltdl/ltdl.h (LT_SCOPE): Moved from here...
* libltdl/lt_system.h (LT_SCOPE): ...to here.
* libltdl/ltdl.c (lt_dlerror_strings, LT_DLSTRERROR): Moved from
here...
* libltdl/lt__private.h (lt__error_strings, LT__STRERROR): ...to
here as additional internal interfaces to lt_error. Changed all
callers.
* libltdl/ltdl.c (LT_DLMUTEX_LOCK, LT_DLMUTEX_UNLOCK)
(LT_DLMUTEX_SETERROR, LT_DLMUTEX_GETERROR, lt_dlmutex_lock_func)
(lt_dlmutex_unlock_func, lt_dlmutex_geterror_func)
(lt_dllast_error): Moved from here...
(LT__MUTEX_LOCK, LT__MUTEX_UNLOCK, LT__MUTEX_SETERRORSTR)
(LT__MUTEX_GETERROR, lt__mutex_lock_func, lt__mutex_unlock_func)
(lt__mutex_geterror_func, lt__last_error): ...to here as
additional internal interfaces to lt_mutex. Changed all callers.
(LT_MUTEX_SETERROR): Take an errorcode rather than a string.
Changed all callers.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dlmutex_register): Moved from
here...
* libltdl/lt_mutex.c, libltdl/lt_mutex.h (lt_dlmutex_register):
...to here. New files.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dladderror, lt_dlseterror)
(lt_dlerror_table):
Moved from here...
* libltdl/lt_error.c, libltdl/lt_error.h (lt_dladderror)
(lt_dlseterror, lt_dlerror_table): ...to here. New files.
2004-04-13 22:12:00 +08:00
|
|
|
/* DLL building support on win32 hosts; mostly to workaround their
|
|
|
|
|
ridiculous implementation of data symbol exporting. */
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
#if !defined(LT_SCOPE)
|
|
|
|
|
# if defined(__WINDOWS__)
|
|
|
|
|
# if defined(DLL_EXPORT) /* defined by libtool (if required) */
|
Factor out the mutex handling and error handling into their own
modules. Mutex handling is not currently useful in combination
with posix threads, and should be easier to replace if it is in a
separate module. Additionally, we can factor out the loaders in
such a way as to depend on only the portability layer and these
new mutex and error modules now:
* libltdl/Makefile.am (pkginclude_HEADERS): Install lt_error.h and
lt_mutex.h to $includedir/libltdl.
(libltdl_la_SOURCES): Build lt_error and lt_mutex objects.
* libltdl/ltdl.h (LT_SCOPE): Moved from here...
* libltdl/lt_system.h (LT_SCOPE): ...to here.
* libltdl/ltdl.c (lt_dlerror_strings, LT_DLSTRERROR): Moved from
here...
* libltdl/lt__private.h (lt__error_strings, LT__STRERROR): ...to
here as additional internal interfaces to lt_error. Changed all
callers.
* libltdl/ltdl.c (LT_DLMUTEX_LOCK, LT_DLMUTEX_UNLOCK)
(LT_DLMUTEX_SETERROR, LT_DLMUTEX_GETERROR, lt_dlmutex_lock_func)
(lt_dlmutex_unlock_func, lt_dlmutex_geterror_func)
(lt_dllast_error): Moved from here...
(LT__MUTEX_LOCK, LT__MUTEX_UNLOCK, LT__MUTEX_SETERRORSTR)
(LT__MUTEX_GETERROR, lt__mutex_lock_func, lt__mutex_unlock_func)
(lt__mutex_geterror_func, lt__last_error): ...to here as
additional internal interfaces to lt_mutex. Changed all callers.
(LT_MUTEX_SETERROR): Take an errorcode rather than a string.
Changed all callers.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dlmutex_register): Moved from
here...
* libltdl/lt_mutex.c, libltdl/lt_mutex.h (lt_dlmutex_register):
...to here. New files.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dladderror, lt_dlseterror)
(lt_dlerror_table):
Moved from here...
* libltdl/lt_error.c, libltdl/lt_error.h (lt_dladderror)
(lt_dlseterror, lt_dlerror_table): ...to here. New files.
2004-04-13 22:12:00 +08:00
|
|
|
# define LT_SCOPE __declspec(dllexport)
|
|
|
|
|
# endif
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
# if defined(LIBLTDL_DLL_IMPORT) /* define if linking with this dll */
|
Factor out the mutex handling and error handling into their own
modules. Mutex handling is not currently useful in combination
with posix threads, and should be easier to replace if it is in a
separate module. Additionally, we can factor out the loaders in
such a way as to depend on only the portability layer and these
new mutex and error modules now:
* libltdl/Makefile.am (pkginclude_HEADERS): Install lt_error.h and
lt_mutex.h to $includedir/libltdl.
(libltdl_la_SOURCES): Build lt_error and lt_mutex objects.
* libltdl/ltdl.h (LT_SCOPE): Moved from here...
* libltdl/lt_system.h (LT_SCOPE): ...to here.
* libltdl/ltdl.c (lt_dlerror_strings, LT_DLSTRERROR): Moved from
here...
* libltdl/lt__private.h (lt__error_strings, LT__STRERROR): ...to
here as additional internal interfaces to lt_error. Changed all
callers.
* libltdl/ltdl.c (LT_DLMUTEX_LOCK, LT_DLMUTEX_UNLOCK)
(LT_DLMUTEX_SETERROR, LT_DLMUTEX_GETERROR, lt_dlmutex_lock_func)
(lt_dlmutex_unlock_func, lt_dlmutex_geterror_func)
(lt_dllast_error): Moved from here...
(LT__MUTEX_LOCK, LT__MUTEX_UNLOCK, LT__MUTEX_SETERRORSTR)
(LT__MUTEX_GETERROR, lt__mutex_lock_func, lt__mutex_unlock_func)
(lt__mutex_geterror_func, lt__last_error): ...to here as
additional internal interfaces to lt_mutex. Changed all callers.
(LT_MUTEX_SETERROR): Take an errorcode rather than a string.
Changed all callers.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dlmutex_register): Moved from
here...
* libltdl/lt_mutex.c, libltdl/lt_mutex.h (lt_dlmutex_register):
...to here. New files.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dladderror, lt_dlseterror)
(lt_dlerror_table):
Moved from here...
* libltdl/lt_error.c, libltdl/lt_error.h (lt_dladderror)
(lt_dlseterror, lt_dlerror_table): ...to here. New files.
2004-04-13 22:12:00 +08:00
|
|
|
# define LT_SCOPE extern __declspec(dllimport)
|
|
|
|
|
# endif
|
|
|
|
|
# endif
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
# if !defined(LT_SCOPE) /* static linking or !__WINDOWS__ */
|
Factor out the mutex handling and error handling into their own
modules. Mutex handling is not currently useful in combination
with posix threads, and should be easier to replace if it is in a
separate module. Additionally, we can factor out the loaders in
such a way as to depend on only the portability layer and these
new mutex and error modules now:
* libltdl/Makefile.am (pkginclude_HEADERS): Install lt_error.h and
lt_mutex.h to $includedir/libltdl.
(libltdl_la_SOURCES): Build lt_error and lt_mutex objects.
* libltdl/ltdl.h (LT_SCOPE): Moved from here...
* libltdl/lt_system.h (LT_SCOPE): ...to here.
* libltdl/ltdl.c (lt_dlerror_strings, LT_DLSTRERROR): Moved from
here...
* libltdl/lt__private.h (lt__error_strings, LT__STRERROR): ...to
here as additional internal interfaces to lt_error. Changed all
callers.
* libltdl/ltdl.c (LT_DLMUTEX_LOCK, LT_DLMUTEX_UNLOCK)
(LT_DLMUTEX_SETERROR, LT_DLMUTEX_GETERROR, lt_dlmutex_lock_func)
(lt_dlmutex_unlock_func, lt_dlmutex_geterror_func)
(lt_dllast_error): Moved from here...
(LT__MUTEX_LOCK, LT__MUTEX_UNLOCK, LT__MUTEX_SETERRORSTR)
(LT__MUTEX_GETERROR, lt__mutex_lock_func, lt__mutex_unlock_func)
(lt__mutex_geterror_func, lt__last_error): ...to here as
additional internal interfaces to lt_mutex. Changed all callers.
(LT_MUTEX_SETERROR): Take an errorcode rather than a string.
Changed all callers.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dlmutex_register): Moved from
here...
* libltdl/lt_mutex.c, libltdl/lt_mutex.h (lt_dlmutex_register):
...to here. New files.
* libltdl/ltdl.c, libltdl/ltdl.h (lt_dladderror, lt_dlseterror)
(lt_dlerror_table):
Moved from here...
* libltdl/lt_error.c, libltdl/lt_error.h (lt_dladderror)
(lt_dlseterror, lt_dlerror_table): ...to here. New files.
2004-04-13 22:12:00 +08:00
|
|
|
# define LT_SCOPE extern
|
|
|
|
|
# endif
|
|
|
|
|
#endif
|
|
|
|
|
|
* libltdl/lt__pre89.h, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/argz.c,
libltdl/argz.h, libltdl/lt__glibc.h, libltdl/lt_dlloader.h,
libltdl/lt__dirent.c, libltdl/lt__dirent.h, libltdl/lt__private.h,
libltdl/lt__alloc.c, libltdl/lt__alloc.h, libltdl/lt_system.h,
libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-loadlibrary.c,
libltdl/loader-shl_load.c, libltdl/lt_error.h, libltdl/lt_mutex.h:
Autoconf either defines to 1 or undefs the discovery macros it
puts in config.h, and many (non-GNU) compilers throw a spurious
warning when testing an #undef macro with #if. For consistency,
while we are touching all these lines, use defined(MACRO) style
throughout.
Reported by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
2004-04-13 23:30:10 +08:00
|
|
|
#if defined(__WINDOWS__)
|
Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
/* LT_DIRSEP_CHAR is accepted *in addition* to '/' as a directory
|
|
|
|
|
separator when it is set. */
|
|
|
|
|
# define LT_DIRSEP_CHAR '\\'
|
|
|
|
|
# define LT_PATHSEP_CHAR ';'
|
|
|
|
|
#else
|
|
|
|
|
# define LT_PATHSEP_CHAR ':'
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if defined(_MSC_VER) /* Visual Studio */
|
|
|
|
|
# define R_OK 4
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* fopen() mode flags for reading a text file */
|
|
|
|
|
#undef LT_READTEXT_MODE
|
|
|
|
|
#if defined(__WINDOWS__) || defined(__CYGWIN__)
|
|
|
|
|
# define LT_READTEXT_MODE "rt"
|
|
|
|
|
#else
|
|
|
|
|
# define LT_READTEXT_MODE "r"
|
|
|
|
|
#endif
|
|
|
|
|
|
This pervasive changeset makes two intertwined deep changes to the
operation of libtool (neither would work alone). First, there is
a new feature that allows libraries to preopen modules. This
entails a backwards incompatible change to the libltdl API for
separating out the preloaded symbol lists by owner. Second, in
the tradition of "eating our own dogfood", libltdl now preloads
its own dlloaders. The internal API for dlloaders has also had to
change in a backwards incompatible way in support of the new
library preloading feature. If you don't use preloaded libraries,
you needn't change your project sources, though you will need to
recompile against the new libltdl. The API changes are mostly
confined to dlloaders, so you probably needn't worry about those
(unless you have written a custom loader that you want libltdl to
use):
* configure.ac (AC_CONFIG_FILES): Add libltdl/loaders/Makefile.
* libltdl/configure.ac (AC_CONFIG_FILES): Add loaders/Makefile.
* libltdl/loaders: New directory for module loaders, to simplify
Makefile rules, and to give the loaders themselves names that are
unique in the first few characters.
* libtoolize.in (func_copy_all_files): Copy recursively to pick up
the loaders directory contents.
* libltdl/loaders/Makefile.am: New file. Move module building
rules to here...
* libltdl/Makefile.am: ...from here.
(VERSION_INFO): Bumped version info to signify interface changes.
(libltdl_la_CPPFLAGS, libltdlc_la_CPPFLAGS): Set LTDLOPEN
appropriately for each library.
* libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-load_add_on.c,
libltdl/loader-loadlibrary.c libltdl/loader-preopen.c,
libltdl/loader-shl_load.c: Moved from here...
* libltdl/loaders/dld_link.c, libltdl/loaders/dlopen.c,
libltdl/loaders/dyld.c, libltdl/loaders/load_add_on.c,
libltdl/loaders/loadlibrary.c libltdl/loaders/preopen.c,
libltdl/loaders/shl_load.c: ...to here.
(get_vtable): New entry function for each.
* libltdl/loaders/preopen.c (lt_dlsymlists_t): Replaced by...
(symlist_chain): ...a new structure which maps lists of preloaded
symbols from the object that loads them.
(lt_dlpreload_open): New function to automatically open all
preloaded modules belonging to a named object (ORIGINATOR).
* libltdl/lt__alloc.c (lt__zalloc): New function to return a block
of zeroed out new memory.
* libltdl/lt__alloc.h (lt__zalloc): Prototype it.
* libltdl/lt__private.h (lt__alloc_die_callback): Add missing
prototype.
(lt__error_strings): Make this opaque to callers.
* libltdl/lt_error.c (lt__error_strings): Move the implementation
to here.
* libltdl/lt_dlloader.h (lt_user_dlloader): Add extra fields to
make originator focused preloading possible. *BREAKS BACKWARDS
COMPATIBILITY*
(lt_dlloader_add): Take advantage of new fields to simplify
paramater list.
* libltdl/lt_system.h (LT_STR): New ANSI stringification macro.
(LT_CONC): Fix it to work from within macros.
* libltdl/ltdl.c (loader_init, loader_init_callback): Simplify
dlloader loading.
(get_vtable, preloaded_symbols): Point these at the preopen.c
symbols to bootstrap the loader chain.
(lt_dlinit): Load the preopen dlloader manually, and then use it
to load any other preloaded dlloaders.
(lt_dlloader_add): Simplify parameter list. Populate new
fields. Chain new loaders according to priority field.
* libltdl/ltdl.h (lt_dlsymlist): Add a new originator field.
(lt_dlpreload_callback_func): Type of a callback for automatic
lt_dlpreload_open loading.
(LTDL_SET_PRELOADED_SYMBOLS): Adjust to hook into preloaded
symbols from the "@PROGRAM@" originator.
* tests/demo/dlmain.c (main): Use mangled preloaded_symbols symbol.
* tests/pdemo/longer_file_name_dlmain.c (main): Ditto.
* ltmain.in: Don't spew spurious warnings when dlopening and
dlpreopening modules.
(func_generate_dlsyms): Factored out from multiple copies in the
rest of the code. Generate originator keyed symbol lists.
(func_extract_archives): Also factored. Extract the contents of
convenience archives for linking with dependent libraries when
--whole-archive is not available.
[darwin]: Don't try to link $old_library unless it exists, and
$lib is a bundle.
* m4/ltdl.m4 (AC_LTDL_DLLIB): Check for all possible dynamic
loading libraries/apis rather that stopping when an acceptable one
is discovered.
(LT_DLLOADERS): New variable for holding dlloaders that can be
preloaded.
* doc/libtool.texi: Document interface changes.
* NEWS: Updated.
2004-07-15 20:14:48 +08:00
|
|
|
/* The extra indirection to the LT__STR and LT__CONC macros is required so
|
|
|
|
|
that if the arguments to LT_STR() (or LT_CONC()) are themselves macros,
|
|
|
|
|
they will be expanded before being quoted. */
|
|
|
|
|
#ifndef LT_STR
|
|
|
|
|
# define LT__STR(arg) #arg
|
|
|
|
|
# define LT_STR(arg) LT__STR(arg)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef LT_CONC
|
|
|
|
|
# define LT__CONC(a, b) a##b
|
|
|
|
|
# define LT_CONC(a, b) LT__CONC(a, b)
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef LT_CONC3
|
|
|
|
|
# define LT__CONC3(a, b, c) a##b##c
|
|
|
|
|
# define LT_CONC3(a, b, c) LT__CONC3(a, b, c)
|
Keywords:
There was no clean separation of abstraction layers in libltdl.
The first step in fixing this is to factor out the memory
management abstraction, making a start on removing promiscuity
from the underlying portability layer:
* doc/libtool.texi (Libltdl interface): Remove lt_dlmalloc,
lt_dlrealloc and lt_dlfree references. The memory management
layer used by libltdl is now private.
* libltdl/lt_system.h: New installed header for system portability
abstraction.
* libltdl/ltdl.h: Use it.
* libltdl/lt__alloc.c, libltdl/lt__alloc.h: New module above
system portability layer to abstract ltdl's memory management.
* libltdl/ltdl.c: Use lt__alloc.h.
(closedir): Use free.
(opendir): Use malloc/free.
(lt__xalloc_die_callback): Report memory failures through
lt_dlerror.
(lt_dlinit): Use it to initialise memory management.
(LT_DLMALLOC, LT_DLREALLOC, LT_DLFREE, LT_EMALLOC, LT_EREALLOC)
(rpl_strdup, rpl_realloc, lt_estrdup, lt_emalloc, lt_erealloc):
Removed in favour of...
(lt__strdup, lt__memdup, MALLOC, REALLOC, FREE): ...these calls
from libltdl/lt__alloc.h. Changed all callers.
(rpl_argz_append, rpl_argz_create_sep, rpl_argz_insert): As part
of the portability layer, these functions no longer use libltdl
memory management API.
(free_vars): Factored out.
(LT_DLMEM_REASSIGN): While redoing memory handling, renamed...
* libltdl/lt__alloc.h (MEMREASSIGN): ...to this.
* libltdl/Makefile.am (AUTOMAKE_OPTIONS): Let automake track
dependencies automatically.
(pkgincludedir): Override from parent package's setting.
(pkginclude_HEADERS): Install lt_system.h.
(libltdl_la_SOURCES): Add new files.
* NEWS: Updated.
Reported by Dalibor Topic <robilad@kaffe.org>
2004-04-06 23:42:11 +08:00
|
|
|
#endif
|
|
|
|
|
|
This pervasive changeset makes two intertwined deep changes to the
operation of libtool (neither would work alone). First, there is
a new feature that allows libraries to preopen modules. This
entails a backwards incompatible change to the libltdl API for
separating out the preloaded symbol lists by owner. Second, in
the tradition of "eating our own dogfood", libltdl now preloads
its own dlloaders. The internal API for dlloaders has also had to
change in a backwards incompatible way in support of the new
library preloading feature. If you don't use preloaded libraries,
you needn't change your project sources, though you will need to
recompile against the new libltdl. The API changes are mostly
confined to dlloaders, so you probably needn't worry about those
(unless you have written a custom loader that you want libltdl to
use):
* configure.ac (AC_CONFIG_FILES): Add libltdl/loaders/Makefile.
* libltdl/configure.ac (AC_CONFIG_FILES): Add loaders/Makefile.
* libltdl/loaders: New directory for module loaders, to simplify
Makefile rules, and to give the loaders themselves names that are
unique in the first few characters.
* libtoolize.in (func_copy_all_files): Copy recursively to pick up
the loaders directory contents.
* libltdl/loaders/Makefile.am: New file. Move module building
rules to here...
* libltdl/Makefile.am: ...from here.
(VERSION_INFO): Bumped version info to signify interface changes.
(libltdl_la_CPPFLAGS, libltdlc_la_CPPFLAGS): Set LTDLOPEN
appropriately for each library.
* libltdl/loader-dld_link.c, libltdl/loader-dlopen.c,
libltdl/loader-dyld.c, libltdl/loader-load_add_on.c,
libltdl/loader-loadlibrary.c libltdl/loader-preopen.c,
libltdl/loader-shl_load.c: Moved from here...
* libltdl/loaders/dld_link.c, libltdl/loaders/dlopen.c,
libltdl/loaders/dyld.c, libltdl/loaders/load_add_on.c,
libltdl/loaders/loadlibrary.c libltdl/loaders/preopen.c,
libltdl/loaders/shl_load.c: ...to here.
(get_vtable): New entry function for each.
* libltdl/loaders/preopen.c (lt_dlsymlists_t): Replaced by...
(symlist_chain): ...a new structure which maps lists of preloaded
symbols from the object that loads them.
(lt_dlpreload_open): New function to automatically open all
preloaded modules belonging to a named object (ORIGINATOR).
* libltdl/lt__alloc.c (lt__zalloc): New function to return a block
of zeroed out new memory.
* libltdl/lt__alloc.h (lt__zalloc): Prototype it.
* libltdl/lt__private.h (lt__alloc_die_callback): Add missing
prototype.
(lt__error_strings): Make this opaque to callers.
* libltdl/lt_error.c (lt__error_strings): Move the implementation
to here.
* libltdl/lt_dlloader.h (lt_user_dlloader): Add extra fields to
make originator focused preloading possible. *BREAKS BACKWARDS
COMPATIBILITY*
(lt_dlloader_add): Take advantage of new fields to simplify
paramater list.
* libltdl/lt_system.h (LT_STR): New ANSI stringification macro.
(LT_CONC): Fix it to work from within macros.
* libltdl/ltdl.c (loader_init, loader_init_callback): Simplify
dlloader loading.
(get_vtable, preloaded_symbols): Point these at the preopen.c
symbols to bootstrap the loader chain.
(lt_dlinit): Load the preopen dlloader manually, and then use it
to load any other preloaded dlloaders.
(lt_dlloader_add): Simplify parameter list. Populate new
fields. Chain new loaders according to priority field.
* libltdl/ltdl.h (lt_dlsymlist): Add a new originator field.
(lt_dlpreload_callback_func): Type of a callback for automatic
lt_dlpreload_open loading.
(LTDL_SET_PRELOADED_SYMBOLS): Adjust to hook into preloaded
symbols from the "@PROGRAM@" originator.
* tests/demo/dlmain.c (main): Use mangled preloaded_symbols symbol.
* tests/pdemo/longer_file_name_dlmain.c (main): Ditto.
* ltmain.in: Don't spew spurious warnings when dlopening and
dlpreopening modules.
(func_generate_dlsyms): Factored out from multiple copies in the
rest of the code. Generate originator keyed symbol lists.
(func_extract_archives): Also factored. Extract the contents of
convenience archives for linking with dependent libraries when
--whole-archive is not available.
[darwin]: Don't try to link $old_library unless it exists, and
$lib is a bundle.
* m4/ltdl.m4 (AC_LTDL_DLLIB): Check for all possible dynamic
loading libraries/apis rather that stopping when an acceptable one
is discovered.
(LT_DLLOADERS): New variable for holding dlloaders that can be
preloaded.
* doc/libtool.texi: Document interface changes.
* NEWS: Updated.
2004-07-15 20:14:48 +08:00
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#endif /*!defined(LT_SYSTEM_H)*/
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