+2011-01-14 Jim Meyering <meyering@redhat.com>
+
+ bootstrap: avoid failure when there is no .gitmodules file
+ ": ${gnulib_path=gnulib}" fails to set $gnulib_path when that variable
+ has been assigned to, even when its value is the empty string.
+ * build-aux/bootstrap (gnulib_path): Test explicitly for an empty
+ "$gnulib_path", rather than using ${gnulib_path=gnulib}.
+ Reported by John W. Eaton <jwe@gnu.org>.
+
+2011-01-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ assume <ctype.h>, ..., <time.h> exist
+ For years gnulib has been assuming the existence of the headers
+ <ctime.h>, <errno.h>, <fcntl.h>, <locale.h>, <signal.h>,
+ <stdio.h>, <stdlib.h>, <string.h>, and <time.h>. Omit checks for
+ them, since they don't appear to be needed.
+ * README (Portability guidelines): Document this.
+ * lib/flock.c: Assume <fcntl.h> exists.
+ * lib/regex_internal.h: Assume <locale.h> exists.
+ * m4/ctype.m4 (gl_CTYPE_H): Assume <ctype.h> exists.
+ * m4/errno_h.m4 (gl_HEADER_ERRNO_H): Assume <errno.h> exists.
+ * m4/fcntl_h.m4 (gl_FCNTL_H): Assume <fcntl.h> exists.
+ * m4/flock.m4 (gl_PREREQ_FLOCK): Likewise.
+ * m4/locale_h.m4 (gl_LOCALE_H): Assume <locale.h> exists.
+ * m4/regex.m4 (gl_REGEX): Likewise.
+ * m4/signal_h.m4 (gl_SIGNAL_H): Assume <signal.h> exists.
+ * m4/stdio_h.m4 (gl_STDIO_H): Assume <stdio.h> exists.
+ * m4/stdlib_h.m4 (gl_STDLIB_H): Assume <stdlib.h> exists.
+ * m4/string_h.m4 (gl_STRING_H): Assume <string.h> exists.
+ * tests/test-argp.c: Likewise.
+ * m4/time_h.m4 (gl_HEADER_TIME_H_BODY): Assume <time.h> exists.
+
+ multiarch: remove AA_APPLE_UNIVERSAL_BUILD
+ * m4/multiarch.m4 (gl_MULTIARCH): Don't AC_DEFINE
+ AA_APPLE_UNIVERSAL_BUILD. See
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00247.html>.
+ * NEWS: Document this.
+
2011-01-19 Eric Blake <eblake@redhat.com>
c-stack: assume stack overflow if SA_SIGINFO unsupported