+2011-06-21 Eric Blake <eblake@redhat.com>
+
+ strerror_r: fix OpenBSD behavior on out-of-range
+ * lib/strerror_r.c (strerror_r): Always use maximal string.
+ * doc/posix-functions/strerror_r.texi (strerror_r): Document it.
+
+ strerror_r: fix OpenBSD behavior on 0
+ * lib/strerror-override.c (strerror_override): Also override 0
+ when needed.
+ * lib/strerror-override.h (strerror_override): Likewise.
+ * lib/strerror.c (strerror): Simplify, now that 0 override is done
+ earlier.
+ * lib/strerror_r.c (strerror_r): Likewise.
+ * m4/strerror.m4 (gl_FUNC_STRERROR): Split detection of 0
+ behavior...
+ (gl_FUNC_STRERROR_0): ...into new macro.
+ * m4/strerror_r.m4 (gl_FUNC_STRERROR_R): Replace strerror_r if 0
+ is overridden.
+ (gl_FUNC_STRERROR_R_WORKS): Avoid extra tests if 0 is broken.
+ * modules/strerror-override (Files): Add strerror.m4.
+ (configure.ac): Also provide override for 0 when needed.
+ * doc/posix-functions/strerror.texi (strerror): Document this.
+ * doc/posix-functions/perror.texi (perror): Likewise.
+
+ perror: adjust array size
+ * modules/perror (Depends-on): Add strerror-override.
+ * lib/perror.c (perror): Use it to avoid magic number.
+
+ strerror-override: reduce size
+ * lib/strerror-override.c (strerror_override): Use fewer lines.
+
+2011-06-20 Bruno Haible <bruno@clisp.org>
+
+ pathmax: Ensure correct value for PATH_MAX on HP-UX.
+ * lib/pathmax.h (PATH_MAX) [HP-UX]: Define to 1024.
+
+2011-06-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ alloca: port to compilers that can optimize like GCC 4.6.0
+ * lib/alloca.c (find_stack_direction): New signature, taken from
+ Autoconf git. This works with GCC 4.6.0. This code should never
+ be used with GCC 4.6.0 itself, as GCC has alloca, but it might
+ be used with other compilers that optimize as well as GCC 4.6.0 does.
+ (alloca): Adjust to new signature.
+ * m4/alloca.m4 (__AC_LIBOBJ_ALLOCA) [Autoconf version < 2.69]:
+ New macro, which patches Autoconf in a similar way.
+
+ c-stack: stop worrying about stack direction
+ * lib/c-stack.c (find_stack_direction): Remove.
+ (segv_handler): Don't worry about stack direction growth, as it's
+ too much of a pain to configure this correctly, given how compilers
+ are optimizing-away our stack-growth detection code. Instead, assume
+ that any access to just before or just after the stack is OK.
+ * m4/c-stack.m4 (AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC):
+ Don't require AC_FUNC_ALLOCA; no longer needed.
+
+2011-06-20 Eric Blake <eblake@redhat.com>
+
+ test-stat: don't allocate PATH_MAX bytes
+ * tests/test-stat.h (test_stat_func): Don't stack-allocate a
+ PATH_MAX-sized buffer.
+ * modules/openat-tests (Depends-on): Add getcwd-lgpl, drop pathmax.
+ * modules/stat-tests (Depends-on): Likewise.
+ * tests/test-fstatat.c (includes): Drop pathmax.h.
+ * tests/test-stat.c (includes): Likewise.
+ Reported by Bruno Haible.
+
+2011-06-20 Bruno Haible <bruno@clisp.org>
+
+ float: Work around <float.h> bugs on FreeBSD/x86, AIX with GCC, IRIX.
+ * lib/float.in.h: Add workarounds for FreeBSD/x86, AIX with GCC, IRIX.
+ * lib/float.c: New file.
+ * m4/float_h.m4 (gl_FLOAT_H): Also handle FreeBSD, AIX, IRIX. Set
+ REPLACE_FLOAT_LDBL.
+ * modules/float (Files): Add lib/float.c.
+ (configure.ac): Invoke AC_LIBOBJ.
+ * doc/posix-headers/float.texi: Mention problems on FreeBSD, AIX, IRIX.
+
+2011-06-20 Bruno Haible <bruno@clisp.org>
+
+ Tests for module 'float'.
+ * modules/float-tests: New file.
+ * tests/test-float.c: New file.
+
+2011-06-19 Bruno Haible <bruno@clisp.org>
+
+ isinf: Coding style.
+ * lib/isinf.c: Use GNU coding style.
+
+2011-06-19 Bruno Haible <bruno@clisp.org>
+
+ linkat test: Avoid test failure on AIX 7.1.
+ * tests/test-linkat.c (main): Allow EINVAL as alternate error value.
+ * tests/test-link.h (test_link): Likewise.
+
2011-06-19 Bruno Haible <bruno@clisp.org>
pread test: Avoid test failure on OpenBSD 4.9.