+2011-07-06 Bruno Haible <bruno@clisp.org>
+
+ sys_select: Fix compilation error on mingw, introduced on 2011-06-30.
+ * lib/sys_select.in.h: Don't include <sys/socket.h>. Instead, include
+ <winsock2.h>.
+ (rpl_fd_isset, FD_ISSET): New definitions, copied from
+ lib/sys_socket.in.h.
+ (close, gethostname): Hide declarations from <winsock2.h>.
+ (socket, connect, accept, bind, getpeername, getsockname, getsockopt,
+ listen, recv, send, recvfrom, sendto, setsockopt, shutdown): Likewise.
+ * lib/sys_socket.in.h (close, gethostname): Tweak indentation.
+ (select): Don't override if gnulib's <sys/select.h> was already
+ included.
+ * lib/unistd.in.h (socket, connect, accept, bind, getpeername,
+ getsockname, getsockopt, listen, recv, send, recvfrom, sendto,
+ setsockopt, shutdown, select): Tweak indentation.
+
+2011-07-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ * modules/pthread_sigmask (configure.ac): gl_SIGNAL_MODULE_INDICATOR
+ and not gl_SYS_SELECT_MODULE_INDICATOR, fixing a typo exposed
+ in an application that does not use the sys_select module.
+
+2011-07-06 Erik Faye-Lund <kusmabite@gmail.com>
+
+ poll: do not return 0 on timeout=-1
+ * lib/poll.c: Loop with yield if no events occured
+
+2011-07-06 Eric Blake <eblake@redhat.com>
+
+ pthread_sigmask: always replace when not using pthread
+ * m4/pthread_sigmask.m4 (gl_PTHREAD_SIGMASK): Force sigprocmask
+ replacement when using some threading other than pthread. Fix
+ logic bug.
+
+2011-07-06 Bruno Haible <bruno@clisp.org>
+
+ Comments.
+ * m4/printf.m4: Update comments about mingw.
+
+2011-07-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ sys_select: define sigset_t more portably
+ * lib/sys_select.in.h: Always include <sys/types.h>, since
+ we now need sigset_t and mingw defines it there.
+ Include <signal.h> before split inclusion guard, to avoid
+ mishaps on Solaris, whose <signal.h> eventually includes us.
+ * m4/signal_h.m4 (gl_SIGNAL_H): Require gl_CHECK_TYPE_SIGSET_T.
+ (gl_CHECK_TYPE_SIGSET_T): New macro, most of the contents of
+ which come from ...
+ * m4/signalblocking.m4 (gl_SIGNALBLOCKING): Require
+ gl_CHECK_TYPE_SIGSET_T.
+ (gl_PREREQ_SIGPROCMASK): Now a no-op, since gl_CHECK_TYPE_SIGSET_T
+ does the real work.
+ * modules/sys_select (Depends-on): Add 'signal'.
+
+ * m4/sys_select_h.m4 (gl_HEADER_SYS_SELECT): Poison pselect.
+ Suggested by Bruno Haible.
+
+ pselect: Use pthread_sigmask, not sigprocmask.
+ * lib/pselect.c (pselect): Use pthread_sigmask, as it supports
+ multithreaded apps better than sigprocmask does.
+ * modules/pselect (Depends-on): Depend on pthread_sigmask, not
+ sigprocmask directly.
+
+2011-07-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ * lib/pselect.c (pselect): Use plain name, without "rpl_".
+ Don't #undef, since we don't need any underlying pselect.
+ * modules/pselect (configure.ac): Use our pselect.o if !HAVE_PSELECT.
+ (Depends-on): Add select.
+ (Link): Add $(LIBSOCKET).
+ These changes suggested by Bruno Haible.
+
+ pselect: document better
+ * MODULES.html.sh (Support for systems lacking POSIX:2008): Add it.
+ * doc/posix-functions/pselect.texi (pselect): Document new module.
+
+ pthread_sigmask: new module
+ * MODULES.html.sh (Support for systems lacking POSIX:2008): Add it.
+ * doc/posix-functions/pthread_sigmask.texi: Document new module.
+ * lib/signal.in.h (pthread_sigmask): Arrange for replacement.
+ This is done only as a macro; I don't know how well that'll
+ work for C++. Move <sys/types.h> include before the include_next,
+ to avoid mishap on Solaris.
+ * m4/signal_h.m4 (gl_SIGNAL_H, gl_SIGNAL_H_DEFAULTS): Check for it.
+ * modules/signal (Makefile.am): Substitute the check's results.
+ * modules/pthread_sigmask, m4/pthread_sigmask.m4: New files.
+
+ test-pselect: new module
+ * modules/pselect-tests, tests/test-pselect.c: New files.
+ * tests/test-select.c, tests/test-sys_select-c++.cc:
+ If TEST_PSELECT is defined, test pselect instead of testing select.
+
+ * tests/test-sys_select.c (sigset_t): Test for it, too.
+ Suggested by Bruno Haible.
+
+2011-07-05 Eric Blake <eblake@redhat.com>
+
+ snprintf: guarantee %1$d, for libintl
+ * m4/snprintf.m4 (gl_FUNC_SNPRINTF): Require %1$d support.
+ * m4/vsnprintf.m4 (gl_FUNC_VSNPRINTF): Likewise.
+ * doc/posix-functions/snprintf.texi (snprintf): Update.
+ * doc/posix-functions/vsnprintf.texi (vsnprintf): Likewise.
+ * tests/test-snprintf.c (main): Enhance test.
+ * tests/test-vsnprintf.c (main): Likewise.
+
+2011-07-05 Jim Meyering <meyering@redhat.com>
+
+ maint: exempt stdio-read.c and stdio-write.c from the cppi check
+ * Makefile (sc_cpp_indent_check): Exempt stdio-read.c and stdio-write.c
+ per Bruno's request, to accommodate this idiom (no space after "#")
+ even when the function is inside an #if block:
+ char *
+ gets (char *s)
+ #undef gets
+ {
+ ...
+ }
+
+2011-07-04 Jim Meyering <meyering@redhat.com>
+
+ maint: indent with spaces, not TABs, and add a rule to check this
+ * tests/test-userspec.c: Indent with spaces, not TABs.
+ * tests/test-argp.c: Likewise.
+ * tests/test-c-stack2.sh: Likewise.
+ * tests/test-parse-duration.sh: Likewise
+ * m4/strtod.m4: Likewise.
+ * m4/alloca.m4: Likewise.
+ * m4/pselect.m4: Likewise.
+ * Makefile (sc_prohibit_leading_TABs): Prohibit leading TABs.
+
+2011-07-03 Jim Meyering <meyering@redhat.com>
+
+ maint.mk: correct omissions in prohibit_argmatch_without_use check
+ This rule would mistakenly report that argmatch.h is included without
+ use even when both the argmatch and invalid_arg macro were used.
+ * top/maint.mk (sc_prohibit_argmatch_without_use): Also detect uses
+ of argmatch and invalid_arg.
+
+2011-07-03 Bruno Haible <bruno@clisp.org>
+
+ Comments about EINTR.
+ * lib/safe-read.h: Explain the purpose of this module.
+ * lib/safe-write.h: Likewise.
+ * doc/posix-functions/read.texi: Mention EINTR and the 'safe-read'
+ module.
+ * doc/posix-functions/write.texi: Mention EINTR and the 'safe-write'
+ module.
+ Reported by Ralf Wildenhues <Ralf.Wildenhues@gmx.de>.
+
+2011-06-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ xnanosleep: Rewrite to use new dtotimespec module.
+ It has the conversion code that used to be in xnanosleep.
+ * lib/xnanosleep.c: Do not include limits.h, stdbool.h, stdio.h,
+ assert.h, sys/types.h, or intprops.h. Include timespec.h instead.
+ (TIME_T_MAX): Remove.
+ (xnanosleep): Rewrite in terms of dtotimespec.
+ * modules/xnanosleep (Depends-on): Add dtotimespec.
+ Remove intprops, stdbool.
+
+ timespec-add, timespec-sub: new modules
+ * lib/timespec.h (timespec_add, timespec_sub): New decls.
+ * lib/timespec-add.c, lib/timespec-sub.c:
+ * modules/timespec-add, modules/timespec-sub: New files.
+
+ dtotimespec: new module
+ * lib/timespec.h (dtotimespec): New decl.
+ * lib/dtotimespec.c, modules/dtotimespec: New files.
+
+ * lib/timespec.h (timespec_sign, timespectod): New inline functions.
+
+ pselect: new module
+ * lib/sys_select.in.h: Include <signal.h>, for 'sigset_t'.
+ (pselect): New decls.
+ * m4/sys_select_h.m4 (gl_HEADER_SYS_SELECT): Require AC_C_RESTRICT,
+ since the standard pselect decl uses 'restrict'.
+ (gl_SYS_SELECT_H_DEFAULTS): Add defaults for GNULIB_PSELECT,
+ HAVE_PSELECT, REPLACE_PSELECT.
+ * modules/sys_select (sys/select.h): Substitute GNULIB_PSELECT,
+ HAVE_PSELECT, REPLACE_PSELECT.
+ * lib/pselect.c, m4/pselect.m4, modules/pselect: New files.
+
+ sys_select: don't depend on sys_socket
+ This is so that Emacs doesn't have to drag in m4/sockpfaf.m4 etc; see
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-06/msg00358.html>.
+ This fix works on GNU and GNU-like platforms, but has not been tested
+ on native Windows.
+ * lib/sys_select.in.h: Include <sys/socket.h> only if native Windows.
+ * m4/sys_select_h.m4 (gl_HEADER_SYS_SELECT): Do not require
+ gl_HEADER_SYS_SOCKET.
+ * modules/sys_select (Files): Add m4/sys_socket_h.m4, for
+ gl_PREREQ_SYS_H_WINSOCK2.
+
+2011-06-29 Eric Blake <eblake@redhat.com>
+
+ pipe2: fix C89 compile problem
+ * lib/pipe2.c (pipe2): Avoid C99 array initialization.
+ Reported by Bruno Haible.
+
+ pipe, pipe2: don't corrupt fd on error
+ * lib/pipe.c (pipe): Leave fd unchanged on error.
+ * lib/pipe2.c (pipe2): Likewise.
+ * doc/posix-functions/pipe.texi (pipe): Document cygwin issue.
+ * doc/glibc-functions/pipe2.texi (pipe2): Likewise.
+
+2011-06-27 Paolo Bonzini <bonzini@gnu.org>
+
+ mmap-anon: do not use regular expressions inadvertently
+ * m4/mmap-anon.m4: Remove trailing period from strings sought
+ in the output.
+
+2011-06-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ nanosleep: fix integer overflow problem
+ * lib/nanosleep.c (my_usleep): Don't assume signed integer
+ arithmetic wraps around on overflow.
+
+ nanosleep: simplify carrying
+ * lib/nanosleep.c (nanosleep): Use the requested tv_nsec for the
+ first call to the underyling nanosleep, not for the last one.
+ This doesn't fix any bugs, but it simplifies the computation of
+ the remaining delay. Found while auditing integer overflow issues.
+
+ dup2: remove test for existence of fcntl
+ * m4/dup2.m4 (gl_FUNC_DUP2): Use "#ifdef FD_CLOEXEC", not
+ "#if HAVE_FCNTL", in the configure-time test program.
+ This removes the need for the AC_CHECK_FUNCS_ONCE([fcntl]),
+ and therefore speeds up "configure" a bit. Found while
+ adding the dup2 module to Emacs.
+
2011-06-24 Eric Blake <eblake@redhat.com>
maint.mk: enhance useless header checks
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