extensions: port better to MINUX 3, HP-UX, autoheader 2.62

[gnulib.git] / ChangeLog

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+2013-02-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+       extensions: port better to MINUX 3, HP-UX, autoheader 2.62
+       Some of these changes are merged in from git Autoconf.
+       * m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS):
+       When deciding whether to define _XOPEN_SOURCE, inspect the
+       preprocessor macro __hpux instead of the more-heavyweight
+       operation of requiring AC_CANONICAL_HOST.  Define _NETBSD_HOST on
+       MINUX, for MINUX 3.  Use USE_SYSTEM_EXTENSIONS, not __EXTENSIONS__,
+       as the key for __EXTENSIONS__.
+
+       unistd: avoid namespace pollution on non-glibc systems
+       * lib/unistd.in.h: #define __need_getopt before including <getopt.h>.
+       This avoids namespace pollution on non-glibc systems, by causing
+       gnulib unistd.h to behave more like glibc unistd.h.  I also hope
+       that this fixes a bug on FreeBSD, reported by Mats Erik Andersson in
+       <http://lists.gnu.org/archive/html/bug-gnulib/2013-02/msg00027.html>.
+
+2013-02-04  Paul Eggert  <eggert@cs.ucla.edu>
+
+       tmpdir: use secure_getenv
+       * lib/tmpdir.c (__secure_getenv) [!LIBC]:
+       Define to secure_getenv, not getenv.
+       * m4/tmpdir.m4 (gt_TMPDIR): Don't check for __secure_getenv,
+       as that's now secure_getenv's job.
+       * modules/tmpdir (Depends-on): Add secure_getenv.
+
+       tempname: use secure_getenv
+       * lib/tempname.c (__secure_getenv) [!_LIBC]:
+       Define to secure_getenv, not getenv.
+       * modules/tempname (Depends-on):
+       Add secure_getenv.
+
+       secure_getenv: new module
+       * MODULES.html.sh (Extra functions based on ANSI C 89):
+       Add secure_getenv.
+       * doc/glibc-functions/secure_getenv.texi: New file.
+       * doc/gnulib.texi: Include it.
+       * lib/secure_getenv.c, m4/secure_getenv.m4, modules/secure_getenv:
+       New files.
+       * lib/stdlib.in.h (secure_getenv): New decl.
+       * m4/stdlib_h.m4 (gl_STDLIB_H, gl_STDLIB_H_DEFAULTS):
+       * modules/stdlib (stdlib.h):
+       Add secure_getenv checks.
+
 2013-02-03  Paul Eggert  <eggert@cs.ucla.edu>
 
+       getcwd: break fdopendir + save_cwd recursive loop (Bug#13516)
+       Reported for OS X 10.8.2 by Assaf Gordon in
+       <http://bugs.gnu.org/13516>.
+       * lib/getcwd.c (HAVE_OPENAT_SUPPORT): Do not define if
+       !HAVE_OPENAT && !HAVE_FDOPENDIR.
+       * m4/getcwd-abort-bug.m4: Reformat to match test-getcwd.c
+       so that they can be kept in sync more easily.  Avoid PATH_MAX
+       test on the Hurd.  Sync from test-getcwd.c for errno tests after
+       mkdir or chdir failure.
+       * tests/test-getcwd.c (HAVE_OPENAT_SUPPORT): New macro, from
+       lib/getcwd.c.
+       (test_abort_bug): Do not test for the deep directory bug unless we
+       have openat support.  Avoid PATH_MAX test on the Hurd.
+
+       regex-tests, regex: fix bug: memset undeclared
+       * tests/test-regex.c: Don't include regex.h twice.  Include
+       string.h, to declare memset.  Christensen's report also mentioned
+       this issue.
+       * m4/regex.m4 (gl_REGEX): Keep test program more in sync with
+       test-regex.c, to avoid future problems like this.  Remove
+       AC_INCLUDES_DEFAULT.  Include <string.h>.  Don't include <regex.h>
+       twice.
+
        regex-tests: fix link errors on older Solaris
        These need to link with @LIBINTL@ to get libintl_gettext.
        Problem reported by Tom G. Christensen in