+2011-05-19 Bruno Haible <bruno@clisp.org>
+
+ strerror_r: Avoid clobbering the strerror buffer when possible.
+ * lib/strerror.c: Define _NETBSD_SOURCE. Include <nl_types.h>.
+ (sys_nerr, sys_errlist): New declarations.
+ (strerror_r): Be careful not to clobber the strerror buffer on NetBSD,
+ HP-UX, native Win32, IRIX, and 32-bit Solaris.
+ * m4/strerror_r.m4 (gl_PREREQ_STRERROR_R): Test whether catgets exists.
+
+2011-05-19 Bruno Haible <bruno@clisp.org>
+
+ strerror_r: Fix test failure on mingw.
+ * m4/strerror_r.m4 (gl_FUNC_STRERROR_R): Don't define
+ EXTEND_STRERROR_R.
+ * lib/strerror_r.c (strerror_r): Test the various GNULIB_defined_*
+ macros from errno.in.h instead.
+
+2011-05-19 Eric Blake <eblake@redhat.com>
+
+ strerror: relax test for Solaris
+ * tests/test-strerror.c (main): Permit Solaris behavior.
+ * tests/test-strerror_r.c (main): Likewise.
+
+ strerror: enforce POSIX ruling on strerror(0)
+ * m4/strerror.m4 (gl_FUNC_STRERROR_SEPARATE): Expose BSD bug.
+ * m4/strerror_r.m4 (gl_FUNC_STRERROR_R): Likewise.
+ * lib/strerror_r.c (rpl_strerror_r): Work around it.
+ * doc/posix-functions/strerror.texi (strerror): Document it.
+ * doc/posix-functions/strerror_r.texi (strerror_r): Likewise.
+ * tests/test-strerror.c (main): Strengthen test.
+ * tests/test-strerror_r.c (main): Likewise.
+
+2011-05-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ intprop-tests: port to older and more-pedantic compilers
+ * modules/intprops-tests (Files): Add tests/macros.h.
+ * tests/test-intprops.c: Include macros.h.
+ (TYPE_IS_INTEGER): Use ASSERT, not verify, to test this macro, as
+ it's no longer documented to expand to an integer constant expression.
+ (TYPE_SIGNED): Use ASSERT, not verify, to test this macro when the
+ argument is floating point, as it's no longer documented to expand
+ to an integer constant expression in that case.
+ (UINT_MAX, ULONG_MAX, UINTMAX_MAX): Redefine to work around
+ compiler bugs reported by Bruno Haible. See
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>.
+ (U0, U1): New constants, to work around the same bugs. Also,
+ in tests, use e.g., "(unsigned int) 39" rather than "39u".
+
+ intprops: work around C compiler bugs
+ * lib/intprops.h (INT_MULTIPLY_RANGE_OVERFLOW): Work around compiler
+ bug in Sun C 5.11 2010/08/13 and other compilers; see
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>.
+
+ intprops: TYPE_IS_INTEGER, TYPE_SIGNED not integer constant exprs
+ * doc/intprops.texi (Integer Type Determination): Fix
+ documentation for TYPE_IS_INTEGER: it returns an constant
+ expression, not an integer constant expression. Fix doc for
+ TYPE_SIGNED: it returns an integer constant expression only if its
+ argument is an integer type. (TYPE_IS_INTEGER is the same, but is
+ hardly worth documented that way....)
+
+2011-05-18 Bruno Haible <bruno@clisp.org>
+
+ strerror_r: Avoid clobbering the strerror buffer when possible.
+ * lib/strerror_r.c (strerror_r): Merge the three implementations.
+ Handle gnulib defined errno values here. When strerror() returns NULL
+ or an empty string, return EINVAL.
+ * lib/strerror.c (strerror): Always call strerror_r. Don't handle
+ gnulib defined errno values here.
+ * modules/strerror (Depends-on): Add verify, strerror_r-posix.
+
+2011-05-18 Eric Blake <eblake@redhat.com>
+
+ fnmatch: avoid compiler warning
+ * lib/fnmatch_loop.c (FCT): Use correct type.
+ Reported by Matthias Bolte.
+
+2011-05-13 Jim Meyering <meyering@redhat.com>
+
+ maint.mk: three new prohibit_<HDR>_without_use rules
+ * top/maint.mk (sc_prohibit_stdio--_without_use): New rule.
+ (sc_prohibit_stdio-safer_without_use): Likewise.
+ (sc_prohibit_xfreopen_without_use): Likewise.
+
+2011-05-17 Jim Meyering <meyering@redhat.com>
+
+ announce-gen: fail if the NEWS delta is empty
+ If there's nothing noteworthy in NEWS, then either you forgot
+ or you shouldn't be releasing.
+ * build-aux/announce-gen: Die if the NEWS delta is effectively empty.
+
+2011-05-17 Pádraig Brady <P@draigBrady.com>
+
+ * top/maint.mk (_gl_tight_scope:): Automatically exclude compiler
+ reserved symbols starting with double underscore from the check.
+
+2011-05-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ intprops: add doc
+ * doc/intprops.texi: New file, documenting intprops.
+ * doc/gnulib.texi (Particular Modules): Include it.
+
+ verify: add doc to gnulib manual and fix example
+ * doc/gnulib.texi (Compile-time Assertions): New node, for 'verify'.
+ * doc/verify.texi (Compile-time Assertions): Update 'assert' doc.
+ (Compile-time Assertions): Fix example so it can't overflow.
+
+2011-05-17 Jim Meyering <meyering@redhat.com>
+
+ warnings.m4: don't usurp save_CPPFLAGS variable name
+ * m4/warnings.m4: Prefix local temporary variable name with gl_.
+
+ doc: fix typo
+ * doc/gnulib-intro.texi (Target Platforms): s/is/are/
+
+2011-05-16 Paul Eggert <eggert@cs.ucla.edu>
+ Bruno Haible <bruno@clisp.org>
+
+ doc: Tweak recent change.
+ * README (Portability guidelines): Tweak new text.
+ * doc/gnulib-intro.texi (Target Platforms): Likewise. Mention
+ Interix 6.1.
+
+2011-05-16 Eric Blake <eblake@redhat.com>
+
+ inttypes: avoid autoconf warning
+ * m4/inttypes.m4 (gl_INTTYPES_INCOMPLETE): Only expand once.
+ * m4/stdint.m4 (gl_STDINT_H): Likewise.
+
+2011-05-16 Sam Steingold <sds@gnu.org>
+ and Eric Blake <eblake@redhat.com>
+
+ vc-list-files: accept multiple directory operands
+ * build-aux/vc-list-files: Iterate over all remaining operands.
+
+2011-05-16 Bruno Haible <bruno@clisp.org>
+
+ Fix confusion regarding deprecated modules.
+ * modules/calloc (Status, Notice): Mark module as deprecated, not
+ obsolete.
+ * modules/fnmatch-posix (Status, Notice): Likewise.
+ * modules/getdate (Status, Notice): Likewise.
+ * modules/getopt (Status, Notice): Likewise.
+ * modules/malloc (Status, Notice): Likewise.
+ * modules/pipe (Status, Notice): Likewise.
+ * modules/realloc (Status, Notice): Likewise.
+ * modules/rename-dest-slash (Status, Notice): Likewise.
+ * modules/unictype/bidicategory-all (Status, Notice): Likewise.
+ * modules/unictype/bidicategory-byname (Status, Notice): Likewise.
+ * modules/unictype/bidicategory-name (Status, Notice): Likewise.
+ * modules/unictype/bidicategory-of (Status, Notice): Likewise.
+ * modules/unictype/bidicategory-test (Status, Notice): Likewise.
+
+2011-05-16 Bruno Haible <bruno@clisp.org>
+
+ doc: List the target platforms.
+ * doc/gnulib-intro.texi (Target Platforms): New section.
+ * doc/gnulib.texi (Introduction): Update menu.
+ * README (Portability guidelines): Refer to the new section. Update
+ statement about oldest supported environment. Remove rationale why
+ <errno.h>, <string.h>, <stdlib.h> are assumed. Update example of an
+ unportable C89 function.
+ Reported by Bastien Roucariès <roucaries.bastien@gmail.com> and
+ Charles Wilson <cygwin@cwilson.fastmail.fm>. Feedback from Paul Eggert.
+
+2011-05-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * build-aux/bootstrap (gnulib_tool): Handle symlink timestamps better.
+
+2011-05-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ intprops-tests: new module
+ * modules/intprops-tests, tests/test-intprops.c: New files.
+
+ intprops: add safe, portable integer overflow checking
+ * lib/intprops.h (_GL_INT_CONVERT, _GL_INT_TWOS_COMPLEMENT):
+ (_GL_INT_SIGNED, _GL_INT_MINIMUM, _GL_INT_MAXIMUM):
+ (_GL_SIGNED_INT_MINIMUM, INT_ADD_RANGE_OVERFLOW):
+ (INT__SUBTRACT__RANGE_OVERFLOW, INT_NEGATE_RANGE_OVERFLOW):
+ (INT_MULTIPLY_RANGE_OVERFLOW, INT_REMAINDER_RANGE_OVERFLOW):
+ (INT_LEFT_SHIFT_RANGE_OVERFLOW, _GL_ADD_OVERFLOW):
+ (_GL__SUBTRACT__OVERFLOW, _GL_MULTIPLY_OVERFLOW, _GL_DIVIDE_OVERFLOW):
+ (_GL_REMAINDER_OVERFLOW, _GL_UNSIGNED_NEG_MULTIPLE, INT_ADD_OVERFLOW):
+ (INT__SUBTRACT__OVERFLOW, INT_NEGATE_OVERFLOW, INT_MULTIPLY_OVERFLOW):
+ (INT_DIVIDE_OVERFLOW, INT_REMAINDER_OVERFLOW):
+ (INT_LEFT_SHIFT_OVERFLOW, _GL_BINARY_OP_OVERFLOW): New macros.
+
+2011-05-12 James Youngman <jay@gnu.org>
+
+ Add a test for glibc's Bugzilla bug #12378.
+ * m4/fnmatch.m4: Use gnulib's fnmatch if the system fnmatch
+ doesn't allow the literal matching of a lone "[" (which is
+ required by POSIX).
+ * tests/test-fnmatch.c (main): Check that "[/b" matches itself.
+
+2011-05-11 Ulrich Drepper <drepper@gmail.com>
+
+ Sync glibc change fixing Bugzilla bug #12378.
+ * lib/fnmatch_loop.c (FCT): When matching '[' keep track of
+ beginning and fall back to matching as normal character if the
+ string ends before the matching ']' is found. This is what POSIX
+ requires.
+
+2011-05-13 Eric Blake <eblake@redhat.com>
+
+ getcwd-lgpl: relax test for FreeBSD
+ * doc/posix-functions/getcwd.texi (getcwd): Document portability
+ issue.
+ * tests/test-getcwd-lgpl.c (main): Relax test.
+ Reported by Matthias Bolte.
+
+2011-05-11 Eric Blake <eblake@redhat.com>
+
+ test-fflush: silence compiler warning
+ * tests/test-fflush.c (main): Don't fclose a NULL pointer.
+
+2011-05-11 Bruno Haible <bruno@clisp.org>
+
+ canonicalize, canonicalize-lgpl: Avoid crash dialog on MacOS X.
+ * m4/canonicalize.m4 (gl_FUNC_REALPATH_WORKS): Add GL_NOCRASH code.
+ * modules/canonicalize (Depends-on): Add 'nocrash'.
+ * modules/canonicalize-lgpl (Depends-on): Likewise.
+ * doc/posix-functions/realpath.texi: Update platforms list.
+ Reported by Ryan Schmidt <ryandesign@macports.org>.
+
+2011-05-11 Bruno Haible <bruno@clisp.org>
+
+ group-member: Declare function in <unistd.h>.
+ * lib/unistd.in.h (group_member): New declaration.
+ * lib/group-member.h: Remove file.
+ * lib/group-member.c: Include <unistd.h> instead of group-member.h.
+ * tests/test-unistd-c++.cc: Check signature of group_member.
+ * m4/group-member.m4 (gl_FUNC_GROUP_MEMBER): Require
+ gl_UNISTD_H_DEFAULTS. Set HAVE_GROUP_MEMBER.
+ * m4/unistd_h.m4 (gl_UNISTD_H): Check whether group_member is declared.
+ (gl_UNISTD_H_DEFAULTS): Initialize GNULIB_GROUP_MEMBER,
+ HAVE_GROUP_MEMBER.
+ * modules/group-member (Files): Remove lib/group-member.h.
+ (Depends-on): Add unistd. Specify conditions.
+ (configure.ac): Invoke gl_UNISTD_MODULE_INDICATOR.
+ (Include): Change to <unistd.h>.
+ * modules/unistd (Makefile.am): Substitute GNULIB_GROUP_MEMBER,
+ HAVE_GROUP_MEMBER.
+ * NEWS: Mention the change.
+ * lib/euidaccess.c: Don't include group-member.h.
+
+2011-05-11 Bruno Haible <bruno@clisp.org>
+
+ group-member: Document module.
+ * doc/glibc-functions/group_member.texi: Mention the 'group-member'
+ module.
+
+2011-05-11 Bruno Haible <bruno@clisp.org>
+
+ fclose: Fix mistake earlier today.
+ * lib/fclose.c (rpl_fclose): Don't assume that EOF < 0.
+
+2011-05-11 Eric Blake <eblake@redhat.com>
+
+ fclose: preserve fflush errors
+ * lib/fclose.c (rpl_fclose): Don't lose fflush errors.
+ Reported by Jim Meyering.
+
+ bootstrap: support a prereq of 'rpcgen -' on RHEL5
+ * build-aux/bootstrap (check_versions): When no specific version
+ is required, merely check that the app produces an exit status
+ that indicates its existence.
+
+ maint.mk: drop redundant check
+ * top/maint.mk (sc_the_the): Delete; sc_prohibit_doubled_word does
+ the same but better.
+
+2011-05-11 Bruno Haible <bruno@clisp.org>
+
+ fclose: Fix possible link error.
+ * lib/fclose.c (rpl_fclose): Invoke _gl_unregister_fd, not
+ unregister_shadow_fd. Improve comments.
+ * lib/sockets.c (close_fd_maybe_socket): Add comments. Reported by
+ Eric Blake.
+
+2011-05-11 Jim Meyering <meyering@redhat.com>
+
+ maint.mk: improve "can not" detection and generalize rule name
+ * top/maint.mk (sc_prohibit_undesirable_word_seq): Renamed from
+ sc_prohibit_can_not, since we'll probably add a few more word pairs here.
+ Use the same technique as in sc_prohibit_doubled_word, so that
+ we recognize "can not" also when the words are separated by a newline.
+ Suggested by Eric Blake.
+ (perl_filename_lineno_text_): Define. Factored out of...
+ (prohibit_doubled_word_): ...here. Use the new definition.
+ (prohibit_undesirable_word_seq_): New var. Use it here, too.
+ (prohibit_undesirable_word_seq_RE_): New overridable variable.
+ (ignore_undesirable_word_sequence_RE_): New overridable variable.
+
+2011-05-10 Eric Blake <eblake@redhat.com>
+
+ fclose: avoid double close race when possible
+ * lib/fclose.c (rpl_fclose): Rewrite to avoid double-close race on
+ all but WINDOWS_SOCKETS.
+
+2011-05-10 Bastien Roucariès <roucaries.bastien@gmail.com>
+
+ openat: correct new comment
+ * lib/openat-proc.c (openat_proc_name): Correct the comment.
+
+2011-05-10 Jim Meyering <meyering@redhat.com>
+
+ openat: add comments
+ * lib/openat-proc.c (openat_proc_name): Add comments,
+ mostly from Eric Blake.
+
+2011-05-09 Eric Blake <eblake@redhat.com>
+
+ openat: reduce syscalls in first probe of /proc
+ * lib/openat-proc.c (openat_proc_name): Require that /proc/self/fd
+ be a directory. Simplify the probe for .. bugs.
+ * modules/openat (Depends-on): Drop same-inode.
+ Reported by Bastien ROUCARIES.
+
+2011-05-09 Jim Meyering <meyering@redhat.com>
+
+ maint.mk: change semantics/name of tight_scope variables
+ * top/maint.mk (_gl_TS_var_match, _gl_TS_function_match):
+ Rename variables to align with semantics that make them more useful.
+
+ maint.mk: tweak new rule's name not to impinge
+ * top/maint.mk (_gl_tight_scope): Rename from sc_tight_scope-0.
+ (sc_tight_scope): Use new rule name rather than $@-0.
+
+ maint.mk: add a syntax-check rule to ensure tightly-scoped symbols
+ * top/maint.mk (sc_tight_scope): New rule.
+ (sc_tight_scope-0): New rule, ifdef'd out.
+ (_gl_TS_dir): Default.
+ (_gl_TS_unmarked_extern_functions, _gl_TS_function_regex): Define.
+ (_gl_TS_unmarked_extern_vars, _gl_TS_var_regex): Define.
+
+2011-05-09 Simon Josefsson <simon@josefsson.org>
+
+ * m4/gc.m4: Remove gl_PREREQ_GC (not used). Reported by Bruno
+ Haible <bruno@clisp.org>.
+
+2011-05-08 Bruno Haible <bruno@clisp.org>
+
+ Comments.
+ * m4/isnanf.m4: Add comment.
+ * m4/isnanl.m4: Likewise.
+
+2011-05-08 Bruno Haible <bruno@clisp.org>
+
+ glob: Remove obsolete macro.
+ * m4/glob.m4 (gl_GLOB_SUBSTITUTE): Remove macro.
+
+2011-05-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ intprops: Sun C 5.11 supports __typeof__
+ * lib/intprops.h (_GL_HAVE___TYPEOF__): New macro, which is set
+ for either GCC 2 or later, as before, or for Sun C 5.11 or later,
+ which is new.
+ (_GL_SIGNED_TYPE_OR_EXPR): Use it.
+
+ intprops: switch to usual gnulib indenting and naming
+ * lib/intprops.h (_GL_INTPROPS_H): Rename from GL_INTPROPS_H.
+ (_GL_SIGNED_TYPE_OR_EXPR): Rename from signed_type_or_expr__.
+
+ * tests/test-inttostr.c (IS_TIGHT): Adjust to above renaming.
+
+2011-05-08 Jim Meyering <meyering@redhat.com>
+
+ maint.mk: suppress "Entering/Leaving directory" diag in announcement
+ * top/maint.mk (release-prep): Use make's --no-print-directory
+ option when generating the announcement. This eliminates the
+ pesky "make[2]: Entering/Leaving directory" diagnostics in the
+ generated announcement template.
+
+2011-05-08 Bruno Haible <bruno@clisp.org>
+
+ tzset: Fix gettimeofday wrapper on Solaris 2.6.
+ * m4/tzset.m4 (gl_FUNC_TZSET_CLOBBER): When invoking
+ gl_GETTIMEOFDAY_REPLACE_LOCALTIME, also set REPLACE_GETTIMEOFDAY.
+
+2011-05-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ ignore-value, verify: Omit include files from lib_SOURCES.
+ * modules/ignore-value, modules/verify (Makefile.am):
+ Don't put ignore-value.h, or verify.h, into lib_SOURCES, as
+ that leads Automake to duplicate use of am__objects_... variables
+ in Makefile.in. See
+ <http://lists.gnu.org/archive/html/emacs-devel/2011-05/msg00257.html>.
+
+2011-05-07 Bruno Haible <bruno@clisp.org>
+
+ fclose: Simplify autoconf macro.
+ * m4/fclose.m4 (gl_FUNC_FCLOSE): Assume gl_FUNC_FFLUSH_STDIN is
+ defined.
+
2011-05-07 Bruno Haible <bruno@clisp.org>
canonicalize-lgpl: Fix autoconf macro ordering bug.