* libltdl/argz_.h: ...to here, so as not to shadow system
argz.h when we `#include <argz.h>' for example.
#include stdlib.h and sys/types.h to ensure we get a size_t
definition.
* libltdl/argz.c (HAVE_CONFIG_H): Set it up how ltdl likes it when
used by another client.
* m4/argz.m4: New file.
(gl_FUNC_ARGZ): Try to find an error_t definition, and a system
argz.h.
* m4/ltdl.m4: Use it.
(AC_LTDL_FUNC_ARGZ): Removed.
* libltdl/lt__glibc.h: #include <argz.h> to pick up either the
system argz.h or our libltdl/argz.h if necessary.
* libltdl/Makefile.am (libltdl_la_SOURCES): Move argz.h from
here...
(ltdldata_DATA): ...here. Along with argz.c.
(argz.h): Generate from argz_.h if the system file is missing.
Reported by Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
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>
(argz_next, argz_stringify): Move from here...
* libltdl/argz.c: New file. ...to here.
* libltdl/lt__glibc.h: New file. Rename global symbols into the
lt__ namespace.
* libltdl/lt__private.h: Include lt__glibc.h.
* libltdl/Makefile.am (libltdl_la_SOURCES): Add new files.
(AM_CPPFLAGS): Add -DLTDL.
* libltdl/argz.h (argz_append, argz_create_sep, argz_insert)
(argz_next, argz_stringify): New file. Declare argz functions
here, including lt__glibc.h when LTDL is defined to rename global
symbols for libltdl.
* m4/ltdl.m4 (AC_LTDL_FUNC_ARGZ): Add argz to AC_LIBOBJ if any of
our argz_* functions are missing from the system libraries.
