* dlfcn/dlfcn.h: Pretty print dladdr declaraction.
* elf/rtld.c (process_envvars): Recognize LD_DYNAMIC_WEAK.
(_dl_dynamic_weak): New variable.
* elf/dl-support.c: Likewise.
* sysdeps/generic/ldsodefs.h: Declare _dl_dynamic_weak.
* elf/do-lookup.h: If we find a weak definition treat it like a
normal symbol unless _dl_dynamic_weak is nonzero. In the latter
case treat it like before.
* sysdeps/unix/sysv/linux/kernel-features.h: Define
__ASSUME_SIOCGIFNAME for kernel >= 2.1.50.
* sysdeps/unix/sysv/linux/if_index.c: Correct typo (SIOGIFNAME ->
SIOCGIFNAME) and use __ASSUME_SIOCGIFNAME.
* sysdeps/libm-ieee754/w_j0.c: Remove __ from symbol definitions.
* sysdeps/libm-ieee754/w_j0f.c: Likewise.
* sysdeps/libm-ieee754/w_j0l.c: Likewise.
* sysdeps/libm-ieee754/w_j1.c: Likewise.
* sysdeps/libm-ieee754/w_j1f.c: Likewise.
* sysdeps/libm-ieee754/w_j1l.c: Likewise.
* sysdeps/libm-ieee754/w_jn.c: Likewise.
* sysdeps/libm-ieee754/w_jnf.c: Likewise.
* sysdeps/libm-ieee754/w_jnl.c: Likewise.
* stdio-common.c: Correct typos.
* math/libm-test.c (jn_test): Adjust delta.
(y1_test): Likewise.
(yn_test): Likewise.
* elf/do-lookup.h: It should never happen that if we expect a versioned
symbol from a file the file has no version table. This should have
been checked in dl-version.c.
* elf/dl-lookup.c: Include assert.h.
* elf/dl-deps.c (_dl_map_object_deps): Don't add dummy objects created
for tracing to the scope lists.
* elf/do-lookup.h: Remove test for l_opencount == 0 after above change.
DT_SYMTAB is always available according to ELF spec.
* elf/dl-lookup.c (_dl_lookup_symbol_skip): Before first do_lookup
call test whether there is any scope left.
(_dl_lookup_versioned_symbol_skip): Likewise.