2001-08-26 Jakub Jelinek <jakub@redhat.com>
* sysdeps/pthread/bits/libc-lock.h (__libc_lock_t): Define
non-opaque lock types also if _IO_MTSAFE_IO is defined.
__libc_lock_define_recursive.
* elf/dl-open.c: Don't declare it here any more.
* elf/dl-close.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-iteratephdr.c: Likewise.
* elf/dl-lookup.c (add_dependency): Use __libc_lock_lock_recursive and
__libc_lock_unlock_recursive.
* elf/dl-close.c (_dl_close): Likewise
* elf/dl-iteratephdr.c (__dl_iterate_phdr): Likewise
* elf/dl-open.c (_dl_open): Likewise
* sysdeps/generic/bits/libc-lock.h
(__libc_lock_define_recursive): New macro.
* sysdeps/generic/bits/stdio-lock.h (_IO_lock_t): Use it.
(_IO_lock_lock): Use __libc_lock_lock_recursive.
(_IO_lock_unlock): Use __libc_lock_unlock_recursive.
* sysdeps/unix/sysv/linux/i386/getcontext.S: Don't touch the %gs
register so that contexts can be used in different threads.
* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/i386/swapcontext.S: Likewise.
2001-07-22 Bruno Haible <haible@clisp.cons.org>
* intl/libintl.h (ngettext, dngettext, dcngettext): Use both msgid1
and msgid2 for printf format argument checking.
* iconv/gconv_cache.c (find_module): Don't allocate room for the
filename. Use alloca, we don't need it beyond this function.
(__gconv_release_cache): New function.
* iconv/gconv_db.c (__gconv_close_transform): Call
__gconv_release_cache after the steps are handled.
* iconv/gconv_dl.c (__gconv_find_shlib): Allocate file name in the
record as well.
* iconv/gconv_int.h: Add prototype fpr __gconv_release_cache.
* libio/genops.c (_IO_list_all_stamp): New variable.
(_IO_un_link): Bump _IO_list_all_stamp after removing from list.
(_IO_link): Likewise for insertion.
(flush_cleanup): New function.
(_IO_flush_all): Get list_all_lock and all individual locks for the
streams. Detect and handle changes to the _IO_list_all list.
(_IO_flush_all_linebuffered): Likewise.
* sysdeps/generic/bits/stdio-lock.h: Define
_IO_cleanup_region_start_noarg.
* sysdeps/mach/hurd/bits/stdio-lock.c: Likewise.
2001-07-23 Jakub Jelinek <jakub@redhat.com>
* sunrpc/svc_tcp.c (svctcp_rendezvous_abort): New.
(svctcp_rendezvous_op): Use it.
* sunrpc/svc_unix.c (svcunix_rendezvous_abort): New.
(svcunix_rendezvous_op): Use it.
2001-07-23 Andreas Schwab <schwab@suse.de>
* math/Makefile (CPPFLAGS-test-ifloat.c, CPPFLAGS-test-idouble.c,
CPPFLAGS-test-ildoubl.c): Renamed from CFLAGS-*.
(math-CPPFLAGS): Set this instead of CPPFLAGS.
2001-07-13 H.J. Lu <hjl@gnu.org>
* sysdeps/mips/dl-machine.h (MAP_BASE_ADDR): Removed.
(elf_machine_got_rel): Defined only if RTLD_BOOTSTRAP is not defined.
(RESOLVE_GOTSYM): Rewrite to use RESOLVE.
* sysdeps/mips/rtld-ldscript.in: Removed.
* sysdeps/mips/rtld-parms: Likewise.
* sysdeps/mips/mips64/rtld-parms: Likewise.
* sysdeps/mips/mipsel/rtld-parms: Likewise.
2001-07-15 Ulrich Drepper <drepper@redhat.com>
* malloc/obstack.c: Define __attribute__ for non-gcc compilers.
Patch by Jim Meyering <jim@meyering.net>.
2001-07-12 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/unix/sysv/linux/s390/s390-64/bits/sigaction.h: Reorder
fields in the sigaction struct to match the definition in the kernel.
2001-07-12 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S: Correct the
test for ENOSYS.
2001-07-12 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/s390/s390-32/bits/setjmp.h: Add leading underscores
to the entries in the __jmp_buf structure.
* sysdeps/s390/s390-64/bits/setjmp.h: Likewise.
2001-07-12 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/s390/s390-32/bcopy.S: Use mvcle for big blocks
(> 64K) and a mvc loop for small blocks.
* sysdeps/s390/s390-32/memcpy.S: Likewise.
* sysdeps/s390/s390-64/bcopy.S: Likewise.
* sysdeps/s390/s390-64/memcpy.S: Likewise.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
2001-05-25 Bruce Mitchener <bruce@cubik.org>
* manual/ctype.texi: Minor fix.
* manual/install.texi: Likewise.
* manual/startup.texi: Likewise.
* manual/examples/dir.c: Use perror() rather than puts().
2001-05-25 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h: Put stuff following
#endif directive inside a comment to avoid compiler warnings.
2001-05-25 Philipp Thomas <pthomas@suse.de>
* nis/nis_print.c (nis_nstype2str): Don't mark names of
naming services for translation, only UNKNOWN needs it.
Add comment to prevent it for the future.
2001-05-25 Joseph S. Myers <jsm28@cam.ac.uk>
* misc/sys/cdefs.h (__restrict_arr): Define appropriately for GCC
3.1 and non-GCC C99 compilers.
2001-05-24 Ulrich Drepper <drepper@redhat.com>
* spinlock.c (__pthread_lock) [HAS_COMPARE_AND_SWAP]: Before doing any
serious work try once whether the lock is uncontested.
Remove duplicate reading of __status before loop.
Change suggested by Hans Boehm <hans_boehm@hp.com>.
* spinlock.h (__pthread_trylock): Remove need for oldstatus variable.
(__pthread_alt_trylock): Likewise.
2001-05-01 Kaz Kylheku <kaz@ashi.footprints.net>
Memory barrier overhaul following line by line inspection.
* mutex.c (pthread_once): Missing memory barriers added.
* pthread.c (__pthread_wait_for_restart_signal,
__pthread_timedsuspend_new, __pthread_restart_new): Added
memory barriers ``just in case'' and for documentary value.
* spinlock.c (__pthread_release): New inline function for releasing
spinlock, to complement __pthread_acquire. Includes memory
barrier prior to assignment to spinlock, and __asm __volatile
dance to prevent reordering or optimization of the spinlock access.
* spinlock.c (__pthread_unlock, __pthread_alt_lock,
__pthread_alt_timedlock, __pthread_alt_unlock,
__pthread_compare_and_swap): Updated to use new __pthread_release
instead of updating spinlock directly.
* spinlock.c (__pthread_lock, __pthread_unlock, wait_node_alloc,
wait_node_free, wait_node_dequeue, __pthread_alt_lock,
__pthread_alt_timedlock, __pthread_alt_unlock, __pthread_acquire):
Memory barrier overhaul. Lots of missing memory barriers added,
a couple needless ones removed.
* spinlock.c (__pthread_compare_and_swap): testandset optimization
removed, just calls __pthread_acquire, which has the new read
barrier in it before its testandset.
* sysdeps/ia64/Makefile [subdir=csu] (sysdep_routines): Add hp-timing.
* sysdeps/ia64/Versions: Add _dl_cpuclock_offset for ld in 2.2.3.
* sysdeps/ia64/hp-timing.c: New file.
* sysdeps/ia64/hp-timing.h: New file.
* sysdeps/unix/sysv/linux/ia64/bits/time.h: Add definitions for
CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID.
* sysdeps/generic/clock_getcpuclockid.c: Make function generic, test
using #ifdef whether the clock is available.
* sysdeps/unix/i386/clock_getcpuclockid.c: Not needed anymore.
* sysdeps/generic/dl-sysdep.c: Initialize _dl_cpuclock_offset to move
it into data section.
* sysdeps/unix/sysv/linux/ia64/pt-initfini.c (_init): We don't
have to call __gmon_start__ in the libpthread DSO.
* sysdeps/pthread/pt-initfini.c (_init): Likewise.
noreturn attribute, remove statements that will never be executed.
* sysdeps/pthread/timer_routines.c (thread_func): Add noreturn
attribute, remove statements that will never be executed.
2001-04-21 Ulrich Drepper <drepper@redhat.com>
* elf/dl-support.c: Include cpuclock-init.h. Use CPUCLOCK_VARDEF and
CPUCLOCK_INIT if defined.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/generic/cpuclock-init.h: New file.
* sysdeps/unix/i386/i586/cpuclock-init.h: New file.
* sysdeps/unix/i386/i586/Versions: New file.
* sysdeps/unix/i386/i586/clock_settime.c: New file.
* sysdeps/unix/i386/i586/clock_gettime.c: Handle thread CPU clock
separately by calling __pthread_clock_gettime if this function is
available. Subtract offset from tsc value before computing time value.
2001-04-18 Jakub Jelinek <jakub@redhat.com>
* sysdeps/sparc/sparc64/fpu/libm-test-ulps: Update.
* sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S (__setcontext):
Copy first word of uc_sigmask into __uc_sigmask.
* sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S (__getcontext):
Save uc_link around trap. Copy __uc_sigmask into first word of
uc_sigmask, clear the rest. Make sure setcontext to the created
context doesn't do this though.
* sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h: New file.
* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (ucontext_t): Add
uc_stack and uc_sigmask, rename old uc_sigmask to __uc_sigmask in the
64bit version, make uc_sigmask __sigset_t in the 32bit version.
* rt/Makefile (otherlibs): Added for static NSS.
* glibcbug.in (BUGGLIBC): Send to new alias.
2001-04-16 Stephen L Moshier <moshier@mediaone.net>
* sysdeps/ieee754/flt-32/e_asinf.c (pio2_hi, pio2_lo, pio4_hi):
Correct the values. (pSx, qSx): Replace by shorter approximation.
Use f suffix on float constants.
* sysdeps/ieee754/ldbl-128/k_tanl.c: New file.
Contributed by Stephen L Moshier <moshier@mediaone.net>.
2001-04-12 Bruno Haible <haible@clisp.cons.org>
* iconvdata/TESTS2: New file.
* iconvdata/run-iconv-test.sh: Also run tests from TESTS2.
* iconvdata/testdata/alfabeta..UTF-8: New file.
* iconvdata/testdata/alfabeta..UTF-16.BE: New file.
* iconvdata/testdata/alfabeta..UTF-16.LE: New file.
* iconvdata/testdata/alfabeta..UTF-32.BE: New file.
* iconvdata/testdata/alfabeta..UTF-32.LE: New file.
2001-04-11 Bruno Haible <haible@clisp.cons.org>
* iconvdata/utf-32.c: New file.
* iconvdata/gconv-modules: Add entries for UTF-32, UTF-32LE, UTF-32BE.
* iconvdata/Makefile (modules): Add UTF-32.
(distribute): Add utf-32.c.
2001-04-11 Bruno Haible <haible@clisp.cons.org>
* iconvdata/utf-16.c (PREPARE_LOOP): Initialize 'swap' after possibly
changing it in the state. After incrementing 'inptr', store it back.
* iconvdata/unicode.c (PREPARE_LOOP): After incrementing 'inptr',
store it back.
2001-04-11 Bruno Haible <haible@clisp.cons.org>
* iconvdata/utf-16.c (gconv_init): Use MAX_NEEDED_FROM, not
MIN_NEEDED_FROM.
2001-04-11 David S. Miller <davem@redhat.com>
* sysdeps/sparc/sparc32/pt-machine.h (stack_pointer): Advance
up closer to user local variables so that new cleanup heuristics work.
* sysdeps/sparc/sparc64/pt-machine.h (stack_pointer): Likewise.
2001-04-10 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S: Fix return
value of getcontext.
* sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S: Fix return
value of setcontext.
* sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/s390/swapcontext.c: Skip setcontext
call by changing the saved context.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* sysdeps/unix/sysv/linux/cris/Dist: New file.
* sysdeps/unix/sysv/linux/cris/Makefile: New file.
* sysdeps/unix/sysv/linux/cris/_G_config.h: New file.
* sysdeps/unix/sysv/linux/cris/bits/fcntl.h: New file.
* sysdeps/unix/sysv/linux/cris/bits/mman.h: New file.
* sysdeps/unix/sysv/linux/cris/bits/resource.h: New file.
* sysdeps/unix/sysv/linux/cris/brk.c: New file.
* sysdeps/unix/sysv/linux/cris/chown.c: New file.
* sysdeps/unix/sysv/linux/cris/clone.S: New file.
* sysdeps/unix/sysv/linux/cris/fchown.c: New file.
* sysdeps/unix/sysv/linux/cris/fcntl.c: New file.
* sysdeps/unix/sysv/linux/cris/fxstat.c: New file.
* sysdeps/unix/sysv/linux/cris/getegid.c: New file.
* sysdeps/unix/sysv/linux/cris/geteuid.c: New file.
* sysdeps/unix/sysv/linux/cris/getgid.c: New file.
* sysdeps/unix/sysv/linux/cris/getgroups.c: New file.
* sysdeps/unix/sysv/linux/cris/getresgid.c: New file.
* sysdeps/unix/sysv/linux/cris/getresuid.c: New file.
* sysdeps/unix/sysv/linux/cris/getrlimit.c: New file.
* sysdeps/unix/sysv/linux/cris/getrlimit64.c: New file.
* sysdeps/unix/sysv/linux/cris/getuid.c: New file.
* sysdeps/unix/sysv/linux/cris/lchown.c: New file.
* sysdeps/unix/sysv/linux/cris/lockf64.c: New file.
* sysdeps/unix/sysv/linux/cris/lxstat.c: New file.
* sysdeps/unix/sysv/linux/cris/mmap.S: New file.
* sysdeps/unix/sysv/linux/cris/mmap64.S: New file.
* sysdeps/unix/sysv/linux/cris/msgctl.c: New file.
* sysdeps/unix/sysv/linux/cris/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/cris/register-dump.h: New file.
* sysdeps/unix/sysv/linux/cris/semctl.c: New file.
* sysdeps/unix/sysv/linux/cris/setegid.c: New file.
* sysdeps/unix/sysv/linux/cris/seteuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setfsgid.c: New file.
* sysdeps/unix/sysv/linux/cris/setfsuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setgid.c: New file.
* sysdeps/unix/sysv/linux/cris/setgroups.c: New file.
* sysdeps/unix/sysv/linux/cris/setregid.c: New file.
* sysdeps/unix/sysv/linux/cris/setresgid.c: New file.
* sysdeps/unix/sysv/linux/cris/setresuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setreuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setrlimit.c: New file.
* sysdeps/unix/sysv/linux/cris/setuid.c: New file.
* sysdeps/unix/sysv/linux/cris/shmctl.c: New file.
* sysdeps/unix/sysv/linux/cris/socket.S: New file.
* sysdeps/unix/sysv/linux/cris/sys/ucontext.h: New file.
* sysdeps/unix/sysv/linux/cris/syscall.S: New file.
* sysdeps/unix/sysv/linux/cris/sysdep.S: New file.
* sysdeps/unix/sysv/linux/cris/sysdep.h: New file.
* sysdeps/unix/sysv/linux/cris/vfork.S: New file.
* sysdeps/unix/sysv/linux/cris/xstat.c: New file.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* sysdeps/cris/Dist: New file.
* sysdeps/cris/Implies: New file.
* sysdeps/cris/Makefile: New file.
* sysdeps/cris/__longjmp.S: New file.
* sysdeps/cris/_mcount.S: New file.
* sysdeps/cris/bits/endian.h: New file.
* sysdeps/cris/bits/setjmp.h: New file.
* sysdeps/cris/bits/string.h: New file.
* sysdeps/cris/dl-machine.h: New file.
* sysdeps/cris/elf/start.S: New file.
* sysdeps/cris/machine-gmon.h: New file.
* sysdeps/cris/memcopy.h: New file.
* sysdeps/cris/memusage.h: New file.
* sysdeps/cris/setjmp.S: New file.
* sysdeps/cris/sysdep.h: New file.
* sysdeps/cris/wordcopy.c: New file.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* elf/elf.h: Add new relocations for CRIS.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* shlib-versions: Add cases for Linux on CRIS.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* configure.in (ASM_LINE_SEP tests): Handle CRIS assembly, with
';' for comments and '@' for line separator.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* sysdeps/unix/sysv/linux/hppa/sysdep.h (INLINE_SYSCALL): Fix
typo; s/==/=/ for assignment.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* malloc/Makefile: Correct comment; mtrace is Perl, not AWK.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* iconv/gconv_simple.c (internal_ucs4_loop_unaligned): Check for
empty input before checking full output.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* iconv/gconv.c (__gconv): Don't derefer parameter cd before
checking if == -1L.
2001-04-08 Ulrich Drepper <drepper@redhat.com>
* inet/rexec.c (rexec_af): Avoid calling perror with errno being set.
2001-03-16 Ulrich Drepper <drepper@redhat.com>
* sysdeps/ieee754/ldbl-96/s_erfl.c: New file.
Contributed by Stephen L. Moshier <moshier@na-net.ornl.gov>.
* sysdeps/i386/fpu/libm-test-ulps: Adjust for addition of erfl and
erfcl.
* sysdeps/ia64/fpu/libm-test-ulps: Likewise.
* sysdeps/unix/sysv/linux/ia64/swapcontext.c: New file.
2001-03-16 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h (struct sigcontext):
Drop hack that was needed for 2.1.1 kernel headers.
* sysdeps/unix/sysv/linux/ia64/ucontext_i.h: New file.
* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Rewrite to make it
overlay with kernel's "struct sigcontext".
* sysdeps/unix/sysv/linux/ia64/Makefile (sysdep_headers): Add
sys/rse.h for "misc" subdir.
(sysdep_routines): Add __start_context for "stdlib" subdir.
* sysdeps/unix/sysv/linux/ia64/sys/rse.h: New file (based on
kernel file of the same name).
* stdlib/Makefile (tests): Add tst-setcontext.
* stdlib/tst-setcontext.c: New file (based on a sample program by
Uli Drepper).
* sysdeps/unix/sysv/linux/ia64/setcontext.S: New file.
* sysdeps/unix/sysv/linux/ia64/getcontext.S: New file.
* sysdeps/unix/sysv/linux/ia64/__start_context.S: New file.
* sysdeps/unix/sysv/linux/ia64/makecontext.c: New file.
* sysdeps/unix/sysv/linux/ia64/__longjmp.S (__longjmp): Use extr.u
instead of shift & and.
2001-03-13 Martin Schwidefsky <schwidefsky@de.ibm.com>
* shlib-versions: Add rule for Linux on 64 bit S/390.
* sysdeps/s390/s390-64/pt-machine.h: New file.
* sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c: New file.
2001-03-13 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/s390/pt-machine.h: Move to...
* sysdeps/s390/s390-32/pt-machine.h: ...here.
Add defines for FLOATING_STACK and ARCH_STACK_MAX_SIZE.
code alignment.
2001-03-09 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/unix/sysv/linux/s390/pt-initfini.c: Use 0x07 padding for
code alignment.
* sysdeps/ieee754/ldbl-96/e_jnl.c: New file.
Contributed by Stephen L. Moshier <moshier@na-net.ornl.gov>.
* sysdeps/i386/fpu/libm-test-ulps: Update for jnl and ynl introduction.
* sysdeps/ia64/fpu/libm-test-ulps: Likewise.
2001-02-18 Mark Kettenis <kettenis@gnu.org>
* malloc/mtrace.c [USE_IN_LIBIO]: Define fopen as _IO_fopen64.
(mtrace): Revert 2001-02-13 patch: use fopen instead of fopen64.
2001-02-17 H.J. Lu <hjl@gnu.org>
* sysdeps/unix/sysv/linux/ia64/clone2.S: Use clone2 and don't use
scratch registers across the system call.
2001-02-08 Ulrich Drepper <drepper@redhat.com>
* sysdeps/alpha/strrchr.S: Little optimization.
Patch by Richard Henderson <rth@redhat.com>.
* sysdeps/alpha/alphaev67/strrchr.S: New file.
Contributed by Rick Gorton <rick.gorton@alpha-processor.com>..
2001-02-08 kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/sh/sh3/setjmp.S (__sigsetjmp): Correct function name
in the assembler end directive.
pointer in FILE structure before calling _IO_init.
correctly. For numbers ending in all zeros eat the zeros even before
2001-02-06 Ulrich Drepper <drepper@redhat.com>
* posix/regex.c: Fix a cast in the code for bracket handling which
caused 8-bit uncleanliness.
Patch by Michal Jaegermann <michal@ellpspace.math.ualberta.ca>.
* posix/Makefile (tests): Add bug-regex1.
* posix/bug-regex1.c: New file.
Contributed by Jim Meyering <jim@meyering.net>.
* posix/regex.c: Many cleanups for incorrect format strings.
2001-02-06 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/ia64/pt-initfini.c: First attempt to fix the
broken code. Patch by Jes Sorensen.
* conform/data/stdlib.h-data: Account for XPG6 changes.
* stdlib/stdlib.h (__random): Change return value type to long.
(posix_memalign): Cleanup parameter names.
(setenv, unsetenv): Make available for __USE_XOPEN2K.
Change return type of unsetenv to int.
(qecvt, qgcvt, qfcvt): Declare only if __USE_MISC.
* sysdeps/generic/setenv.c (unsetenv): Change return type to int.
Return -1 and set errno if parameter is invalid.
* stdlib/random.c (__random): Change return value type to long.