* elf/dl-open.c (_dl_open): Force an indirect call for
_dl_relocate_object so there is no chance a PLT fixup will be done
and clobber _dl_global_scope before our call happens.
* sysdeps/i386/fpu/__math.h (tan): Correct output constraint from =u
to =t; must operate on top of fp reg stack, not second from top.
Correct input constraint to 0 from t; must be explicit when input and
output are the same register.
(floor): Use __volatile instead of volatile.
(ceil): Likewise.
* manual/Makefile ($(objpfx)stamp%-$(subdir)): Separate rule from
other targets.
* manual/Makefile (glibc-targets): Variable and targets removed.
Sat Jul 13 23:50:17 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* manual/Makefile (lib): New phony target. Depend on stamp files.
($(objpfx)stamp%-$(subdir)): New rule to create them when necessary.
1996-07-13 Paul Eggert <eggert@twinsun.com>
* time/strftime.c (strftime): Use space padding for %e, %k, %l,
to match Emacs format-time-string specification.
(DO_NUMBER_SPACEPAD): Renamed from DO_NUMBER_NOPAD.
Sat Jul 13 20:17:38 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* elf/dl-deps.c (_dl_map_object_deps): Take new args PRELOADS and
NPRELOADS, vector of `struct link_map *'s; add them to the searchlist
between MAP and its deps.
* elf/link.h: Fix decl.
* elf/rtld.c (dl_main): If not secure, parse LD_PRELOAD for
colon-separated list of names, map those and pass vector of ptrs as
PRELOADS list to _dl_map_object_deps.
* elf/dl-runtime.c (_dl_object_relocation_scope): Pass new args to
_dl_map_object_deps with empty preload list.
* elf/dl-open.c (_dl_open): Likewise.
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_open_zero_fill): Function
removed.
(__mmap): Pass MACH_PORT_NULL for memobj port when (flags & MAP_ANON).
* sysdeps/generic/dl-sysdep.c (_dl_sysdep_open_zero_fill):
Conditionalize defn on [! MAP_ANON].
* elf/dl-minimal.c (malloc): Conditionalize use of _dl_zerofd
on [! MAP_ANON].
* elf/rtld.c (dl_main): Likewise.
* elf/dl-load.c (_dl_zerofd): Conditionalize defn on [! MAP_ANON].
(_dl_map_object_from_fd): Conditionalize initialization of _dl_zerofd.
* elf/dl-fini.c (_dl_fini): Skip finalizer for executable itself.
Sat Jul 13 02:47:53 1996 David Mosberger-Tang <davidm@azstarnet.com>
* stdlib/random.c (__random): Declare as int32_t to be in sync
with declaration.
* socket/Makefile (headers): Add socketbits.h.
* misc/mntent.c (endmntent): Allow for NULL stream. SunOS does
it that way.
* grp/initgroups.c (initgroups): Add groups that user is a member
of, not the ones he is _not_ a member of.
* nss/nsswitch.c (known_compare): Make known_compare() a static
instead of a local function. The latter are difficult to debug
and slow to execute on certain platforms.
* sysdeps/posix/ttyname_r.c (ttyname_r): Use sizeof (dev) - 1 in
place of sizeof (dev). The size of a literal string includes the
NUL byte.
* sysdeps/unix/getlogin.c (getlogin): Initialize ut_fd with -1.
Thu Jul 11 16:59:10 1996 David Mosberger-Tang <davidm@azstarnet.com>
* misc/mntent.c (addmntent): Seek to end of file before writing
entry. Return 1 on error, not -1.
Tue Jul 9 19:08:05 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/syscalls.list: Mark bdflush as EXTRA
syscall.
Fri Jul 5 18:44:55 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/alpha/ioperm.c (port_to_cpu_addr): Size
shift amount for Jensen must be 5 not 4.
Sat Jul 13 20:04:28 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* socket/sys/socket.h (struct osockaddr): New type.
Sat Jul 13 03:50:53 1996 Ulrich Drepper <drepper@cygnus.com>
* misc/Makefile (routines): Add qefgcvt and qefgcvt_r.
* misc/efgcvt.c, misc/efgcvt_r.c: Change code so that the `double'
and `long double' versions can be generated.
* misc/qefgcvt.c, misc/qefgcvt_r.c: New files. Define macros
so that included efgcvt{,_r}.c file generate `long double'
versions.
* stdlib/stdlib.h: Add prototypes for q[efg]cvt() and q[ef]cvt_r()
functions.
* manual/startup.texi: Document new getsubopt function.
* manual/examples/subopt.c: New example program for documenting
getsubopt function.
Fri Jul 12 23:58:37 1996 Ulrich Drepper <drepper@cygnus.com>
* stdlib/Makefile (routines): Add getsubopt.
* stdlib/stdlib.h: Add prototype for getsubopt.
* stdlib/getsubopt.c: New file. Implement getsubopt function
to handle suboption parsing.
(routines): Remove them and &f from here.
* sys/socket.h: New file, wrapper for socket/sys/socket.h.
Thu Jul 11 00:22:40 1996 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/s_frexpl.c: New file. `long double'
implementation of frexp() function.
* sysdeps/libm-ieee754/s_ldexpl.c: New file. `long double'
implementation of ldexp() function.
* sysdeps/libm-i387/s_isnanl.c (isnanl): Mask explicit one
out before or'ing.
* nss/nss_files/files-service.c (getservbyname): Take second arg PROTO
and check it.
* nss/nss_files/files-XXX.c: Comment fix.
Fri Jul 12 01:28:35 1996 Ulrich Drepper <drepper@cygnus.com>
* nss/getXXent_r.c (GETFUNC_NAME_STRING): Define with name
of reentrant function.
(setup): Pass additional argument with function name we are
looking for.
(SETFUNC_NAME, ENDFUNC_NAME, GETFUNC_NAME): Call setup with
new argument {SET,END,GET}FUNC_NAME_STRING.
* nss/getXXent.c (GETFUNC_NAME): RESULT must be static because
we return a pointer.
Thu Jul 11 18:20:44 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* nss/nss_files/files-parse.c: Add comment about things to #define.
* nss/nss_files/files-hosts.c (NEED_H_ERRNO): Define it.
* nss/nss_files/files-parse.c (STRING_FIELD): Don't flag NUL before
terminator char as an error.
* nss/getXXbyYY_r.c (REENTRANT_NAME): Set *H_ERRNOP, not h_errno.
Thu Jul 11 03:21:10 1996 Ulrich Drepper <drepper@cygnus.com>
* catgets/gencat.c (write_out): Move code to determine new
best size out of inner loop.
Wed Jul 10 05:24:40 1996 David Mosberger-Tang <davidm@azstarnet.com>
* misc/mntent.c: Include <sys/types.h>.
(endmntent): Return 1 one success, 0 on failure.
(getmntent): Chop newline and ignore empty lines.
Mon Jul 8 21:18:40 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/dl-machine.h (RESOLVE): New macro, defined
differently based on [RTLD_BOOTSTRAP].
(elf_machine_rela): Use it instead of the fn ptr arg directly.
* nss/getXXent_r.c (GETFUNC_NAME_STRING): Define with name
of reentrant function.
(setup): Pass additional argument with function name we are
looking for.
(SETFUNC_NAME, ENDFUNC_NAME, GETFUNC_NAME): Call setup with
new argument {SET,END,GET}FUNC_NAME_STRING.
* sysdeps/m68k/dl-machine.h (RESOLVE): New macro, defined
differently based on [RTLD_BOOTSTRAP].
(elf_machine_rela): Use it instead of the fn ptr arg directly.
__glob_closedir_hook): Remove decls.
* sysdeps/generic/machine-gmon.h: Declare mcount_internal.
* sysdeps/unix/inet/syscalls.list: Define __ names with weak aliases
for send and connect syscalls.
* socket/sys/socket.h: New file, taken from non-sysdep parts of
linux/sys/socket.h; break sysdeps parts out into socketbits.h.
Declare __ names for send and connect.
* sysdeps/generic/socketbits.h: New file.
* sysdeps/unix/sysv/linux/socketbits.h: New file.
* sysdeps/unix/sysv/linux/sys/socket.h: File removed.
* sysdeps/generic/sys/socket.h: File removed.
* sysdeps/mach/hurd/connect.c: Define __ name and weak alias.
* sysdeps/mach/hurd/send.c: Likewise.
* sysdeps/mach/libc-lock.h: New file.
* sysdeps/unix/readdir.c: Do locking.
* sysdeps/unix/seekdir.c: Likewise.
* sysdeps/unix/rewinddir.c: Likewise.
* sysdeps/unix/closedir.c: Likewise.
* sysdeps/unix/bsd/telldir.c: Likewise.
* sysdeps/mach/hurd/seekdir.c: Likewise.
* sysdeps/mach/hurd/readdir.c: Likewise.
* sysdeps/mach/hurd/closedir.c: Likewise.
* sysdeps/mach/hurd/opendir.c: Initialize the lock.
* sysdeps/unix/opendir.c: Likewise.
* sysdeps/mach/hurd/dirstream.h: Include <libc-lock.h>.
(struct __dirstream): Add lock member using __libc_lock_define.
* sysdeps/unix/dirstream.h: Likewise.
* sysdeps/stub/libc-lock.h (__libc_lock_fini): New macro.
* stdlib/mbstowcs.c: Pass address of pointer to mbsrtowcs.
* stdlib/wcstombs.c: Use wcsrtombs instead of mbsrtowcs.
Thu Jul 4 01:34:04 1996 Ulrich Drepper <drepper@cygnus.com>
* locale/programs/stringtrans.c: Fix typo in copyright.
* stdio-common/printf-prs.c: Add casts to prevent
signed<->unsigned warnings.
* stdio-common/printf-parse.h: Initialize state variable before
calling mbrlen.
* stdio-common/printf-prs.c: Don't initialize state variable here.
* stdio-common/vfprintf.c: Don't initialize state variable.
(vfprintf): While determining length of multibyte string don't
try to be clever in determining characters to use for first
call.
Add real implementation of multibyte<->wide char conversion
functions. The functions always convert between the fixed wide
char format (ISO 10646 in UCS4) and the UTF8 representation of
this character set. Conversion between the currently used
8bit character set and ISO 10646 will not take place. This is
what iconv() is for.
* wcsmbs/wchar.h (mbstate_t): Define as structure to replace
dummy definition.
Add optimized version of `mbrlen' function.
* wcsmbs/btowc.c (btowc): Restrict range of legal characters
to 0...0x7f.
* wcsmbs/wctob.c (wctob): Restrict range of legal characters
to 0..0x7f.
* wcsmbs/mbrlen.c: Make mbrlen a weak alias of __mbrlen.
This is needed in the wchar.h header.
* wcsmbs/mbrtowc.c: Replace dummy implementation. Convert UTF8
encoded character to UCS4.
* wcsmbs/mbsinit.c: Replace dummy implementation. Test COUNT
element of `mbstate_t' for initial state.
* wcsmbs/mbsrtowcs.c: Replace dummy implementation. Convert UTF8
encoded string to UCS4 string.
* wcsmbs/wcrtomb.c: Replace dummy implementation. Convert UCS4
character to UTF8 encoded form.
* wcsmbs/wcsrtombs.c: Replace dummy implementation. Convert UCS4
encoded string to UTF8 encoded form.
* sysdeps/generic/machine-gmon.h [NO_UNDERSCORES]: Declare _mcount
before using it in lhs of weak_alias.
* nss/getXXent_r.c (setup): New function, broken out of SETFUNC_NAME.
Call __nss_lookup when not setting STARTP.
(SETFUNC_NAME, ENDFUNC_NAME, REENTRANT_GETNAME): Call it to set up for
function-calling loop.
Tue Jul 9 00:14:52 1996 Michael I. Bushnell p/BSG <mib@gnu.ai.mit.edu>
* sysdeps/mach/hurd/ioctls.h (MDMBUF, ECHO, TOSTOP, FLUSHO,
PENDIN, NOFLSH): Undefine these at start if they are already
defined to avoid collision with termbits.h.
* sysdeps/generic/termbits.h (ECHO, TOSTOP, NOFLSH): Likewise.
(MDMBUF, FLUSHO, PENDIN) [__USE_BSD]: Likewise.
Mon Jul 8 13:10:50 1996 Michael I. Bushnell p/BSG <mib@gnu.ai.mit.edu>
* sysdeps/mach/hurd/errnos.awk: Skip entries where the
error is 0. The "placeholder" entries recently added to
errno.texi convert to zero since `???/' is at the front of them.
* sysdeps/gnu/errlist.awk (errnoh): Likewise.
* sysdeps/stub/setdomain.c (setdomainname): Declare NAME parm
__const to conform with unistd.h.
* posix/regex.c (re_comp, re_exec): Use weak_function as
keyword in function defns instead of weak_symbol (NAME) after
the defn.
* stdlib/stdlib.h (random): Declare return type to be int32_t.
* math/math.h (_Mfloat_, _Mlong_double_): New macros, defined iff not
already defined to float, long double. Use those macros for _Mdouble_
defns when including mathcalls.h.
* math/Makefile [$(long-double-fcts) != yes] (CPPFLAGS): Append
-D_Mlong_double_=double.
Add more -lm functions to -lc because ldexp uses them.
* math/Makefile (calls): Add s_finite, s_copysign, s_scalbn, s_modf.
(routines): Remove s_modf, add s_frexpf, s_ldexpf; all but frexp and
ldexp have both f and l code, and those have f though not l code.
memcpy for possibly overlapping strings.
* math/math.h (_Mfloat_, _Mlong_double_): New macros, defined iff not
already defined to float, long double. Use those macros for _Mdouble_
defns when including mathcalls.h.
* math/Makefile [$(long-double-fcts) != yes] (CPPFLAGS): Append
-D_Mlong_double_=double.
Add more -lm functions to -lc because ldexp uses them.
* math/Makefile (calls): Add s_finite, s_copysign, s_scalbn, s_modf.
(routines): Remove s_modf, add s_frexpf, s_ldexpf; all but frexp and
ldexp have both f and l code, and those have f though not l code.
Mon Jul 8 13:10:50 1996 Michael I. Bushnell p/BSG <mib@psilocin.gnu.ai.mit.edu>
* string/argz-delete.c (argz_delete): Use memmove instead of
memcpy for possbly overlapping strings.
* libc-symbols.h [GCC >= 2.7] (strong_alias, weak_alias): Use extern
storage class. GCC gives an error for non-extern data defns with the
alias attribute.
Mon Jul 8 00:11:15 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* libc-symbols.h (weak_function): New macro.
For GCC 2.7+ define as __attribute__ ((weak)).
* elf/dl-minimal.c: Use weak_function as keyword in function defns
instead of weak_symbol (NAME) after the defn.
* stdlib/strtol.c: Likewise.
* sysdeps/mach/hurd/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (elf_machine_rela) [RTLD_BOOTSTRAP]:
If this is defined, don't declare _dl_rtld_map as weak, and
don't check for MAP pointing to it. RESOLVE is always null in this
case, so test with #ifdef instead of if.
* libc-symbols.h (symbol_set_declare): Use weak_extern instead of
weak_symbol.
* csu/initfini.c (_init): Likewise.
* locale/setlocale.c (DEFINE_CATEGORY): Likewise.
* misc/efgcvt_r.c: Likewise.
* sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise.
* libc-symbols.h [ASSEMBLER] (weak_symbol): Macro removed.
It was not used in any assembler code.
(weak_symbol_asm): Renamed to weak_extern_asm.
(weak_extern): New macro replaces weak_symbol for weak extern refs;
define to weak_extern_asm for [!ASSEMBLER].
* libc-symbols.h [! ASSEMBLER] [HAVE_WEAK_SYMBOLS] (weak_symbol_asm,
weak_alias_asm): New macros, renamed from weak_symbol/weak_alias;
define those now as aliases.
Change conditional to use __attribute__ syntax for GCC 2.7+, not 2.8+
[GCC >= 2.7] [HAVE_WEAK_SYMBOLS] (weak_symbol): Do weak_symbol_asm
after GCC weak attribute decl.
Mon Jul 8 01:37:34 1996 Michael I. Bushnell, p/BSG <mib@gnu.ai.mit.edu>
* string/argz-insert.c (__argz_insert): (__argz_insert): Use
memmove instead of memcpy for possible overlapping strings.
POINT_COL. Add POINT_OFFS field.
__line_wrap_update. Use POINT_COL field instead of POINT.
* stdio/linewrap.h (struct line_wrap_data): Rename POINT field to
POINT_COL. Add POINT_OFFS field.
* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Don't unlock the
critical section lock before unlinking dying active resources.
The unlock just before return is right (i.e. old code unlocked twice).
* stdio/linewrap.c (lwupdate): Update D->point_offs when done.
* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Don't unlock the
critical section lock before unlinking dying active resources.
The unlock just before return is right (i.e. old code unlocked twice).
* linewrap.c (lwupdate): Update D->point_offs when done.
Use memmove instead of memcpy where overlap is possible (not
necessary using current implementation of memcpy, but...).
(__line_wrap_update): Don't update D->point_offs (lwupdate does it).
Fri May 31 11:48:46 1996 Miles Bader <miles@gnu.ai.mit.edu>
* linewrap.c (lwupdate): New function, mostly was __line_wrap_update.
Use POINT_COL field instead of POINT.
(__line_wrap_output): Use lwupdate.
(__line_wrap_update): New function.
(ensure_unwrapped, ensure_wrapped): New functions.
(line_wrap_set_lmargin, line_wrap_set_rmargin,
line_wrap_set_wmargin, line_wrap_point): Use __line_wrap_update.
* linewrap.h (struct line_wrap_data): Rename POINT field to POINT_COL.
Add POINT_OFFS field.
(__line_wrap_update): New decl.
(line_wrap_set_lmargin, line_wrap_set_rmargin,
line_wrap_set_wmargin, line_wrap_point): Use __line_wrap_update.
* login/logout.c (logout): Do nothing if getutline_r returns ESRCH.
* login/pututline_r.c (pututline_r): Since we assign RESULT from
lseek now, check that it's >= 0, not == 0.
Wed Jul 3 13:28:04 1996 Miles Bader <miles@gnu.ai.mit.edu>
* login/login.c (login): Make a copy of *UT, fill in various
fields that we supply (ut_line, ut_type, ut_pid), and use the copy
in place of UT.
* login/getutline_r.c (getutline_r): When we return ESRCH, mark
UTMP_DATA->ubuf invalid (by setting UTMP_DATA->loc_utmp to 0).
signal during critical section doing interruptible RPC, if
_hurdsig_abort_rpcs wants to change thread state, do thread_set_state
before thread_resume. If in critical section, pass 0 for SIGNO to
_hurdsig_abort_rpcs so rpc is interrupted regardless of SA_RESTART.
* extra-lib.mk: Fix typo in $(extra-libs-others) conditional.
* hurd/hurdsig.c (_hurd_internal_post_signal): In case of handled
signal during critical section doing interruptible RPC, if
_hurdsig_abort_rpcs wants to change thread state, do thread_set_state
before thread_resume. If in critical section, pass 0 for SIGNO to
_hurdsig_abort_rpcs so rpc is interrupted regardless of SA_RESTART.
points within DATA->linebuffer; otherwise use all of DATA->linebuffer
itself, no need to skip past a NUL.
* nss/nsswitch.h (known_function): Comment fix.
* nss/nsswitch.c (nss_lookup_function): Rewritten using __tsearch
directly. Do the lookup and insertion with a single call, and fill in
the tree node afterwards if new.
(known_compare, nss_find_entry, nss_insert_entry): Functions removed.
* misc/sys/select.h: #define __need_timespec before <sys/time.h> incl.
(struct timeval): Add bodiless decl for scope.
* time/time.h (struct timespec): Rename members from `ts_*' to `tv_*'.
Move struct timespec defn outside [_TIME_H] so it can be got with
#define __need_timespec.
* time/sys/time.h (TIMEVAL_TO_TIMESPEC): Use `tv_*' instead of `ts_*'
for `struct timespec' member names.
(TIMESPEC_TO_TIMEVAL): Likewise.
* nss/Makefile (extra-libs-others): New variable.
* extra-lib.mk: Don't test for $($(lib)-no-lib-dep). Instead match
$(lib) in $(extra-libs-others).
* sunrpc/Makefile (extra-libs-others): New variable.
(librpcsvc-no-lib-dep): Variable removed.
Thu Jul 4 05:21:59 1996 David Mosberger-Tang <davidm@azstarnet.com>
* login/utmp.h: Fix typos.
* misc/syslog.c (vsyslog): Use __send instead of send and
__connect instead of connect to avoid name-space collisions (e.g.,
with psgetty).
* elf/rtld.c: Define RTLD_BOOTSTRAP before #include "dynamic-link.h".
* sysdeps/i386/dl-machine.h (elf_machine_rel): Remove weak decl for
_dl_rtld_map.
(RESOLVE): New macro, defined differently based on [RTLD_BOOTSTRAP].
(elf_machine_rel): Use it instead of testing fn ptr arg at runtime.
(elf_machine_rel: case R_386_32) [! RTLD_BOOTSTRAP]: Declare
_dl_rtld_map weak only here.
* posix/unistd.h [__USE_BSD]: Declare getdomainname, setdomainname.
* nss/getXXbyYY_r.c (REENTRANT_NAME): Cast FCT in __nss_next call.
* sysdeps/generic/sbrk.c: Always call __brk (0) to update __curbrk.
* malloc/malloc-size.c (malloc_usable_size): Renamed from
malloc_object_allocation_size.
* malloc/malloc.h: Fix decl.
* sys/select.h: New file, wrapper header.
* posix/sys/types.h [__USE_BSD]: Include <sys/select.h>; remove
fd_set, associated macros, and select decl.
* sysdeps/posix/isfdtype.c: New file.
Tue Jul 2 23:45:14 1996 Ulrich Drepper <drepper@cygnus.com>
The latest Japanese proposal for POSIX locales renames the
CHARMAP keyword in locale definition files to CHARCONV.
* locale/programs/ld-ctype.c, locale/programs/locales.h: Rename
function ctype_is_charmap to ctype_is_charconv.
* locale/programs/locfile-kw.gperf: Replace charmap keyword with
charconv.
* locale/programs/locfile-token.h: Add definition of token
charconv.
* locale/programs/locfile.c: Recognize charconv keyword. Rename
lables according to this.
* locale/weight.h (get_weight): Cast constants to prevent
warnings.
* stdlib/strtod.c, stdlib/strtol.c, string/strcoll.c,
string/strxfrm.c: Add some more casts to prevent signed<->unsigned
warnings.
New stuff described in P1003.1g.
* misc/Makefile (headers): Add sys/select.h.
(routines): Add pselect.
* misc/sys/select.h: New file. Declare select functions and
needed data types and macros.
* sysdeps/generic/pselect.c: New file. Add generic implementation
of pselect() function which uses select().
* posix/getconf.c: Recognize new variables from P1003.1g.
* posix/posix1_lim.h: Define _POSIX_FD_SETSIZE, _POSIX_QLIMIT,
_POSIX_HIWAT, and _POSIX_UIO_MAXIOV.
* posix/unistd.h: Add description of the P1003.1g variables.
* sysdeps/generic/confname.h: Define _SC_* values for new
variables.
* sysdeps/posix/fpathconf.c (fpathconf): Add handling of
_PC_SOCK_MAXBUF.
* sysdeps/stub/fpathconf.c (fpathconf): Ditto.
* sysdeps/posix/sysconf.c (sysconf): Add handling of new
P1003.1g variables.
* sysdeps/stub/sysconf.c (sysconf): Ditto.
* sysdeps/unix/sysv/linux/posix_opt.h: Define _POSIX_POLL and
_POSIX_SELECT since Linux has this.
* socket/Makefile (routines): Add isfdtype.
* sysdeps/generic/sys/socket.h: Add prototype for isfdtype.
* sysdeps/stub/isfdtype.c: New file. Stub implementation of
isfdtype.
* wcsmbs/wcrtomb.c (wcrtomb): Fix typo.
