Adjust to Autoconf 2.60 and today's gnulib.

* bootstrap (gnulib_modules): Add stdint.
Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
no longer copies it.
(intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
since stdint needs the former and wcwidth (which is now required
by mbswidth) needs the latter.
Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
work around a compatibility glitch between gettext 0.14.6 and
Autoconf 2.60.
* configure.ac (AC_PREREQ): Require Autoconf 2.60.
Do not check for uintptr_t, since new stdint module does the right
thing.
* lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
Add stdint.h, stdint_.h, wcwidth.h.
* m4/.cvsignore: Remove alloca.m4, onceonly.m4.
Add absolute-header.m4, double-slash-root.m4, longlong.m4,
stdint.m4, wchar_t.m4, wcwidth.m4.
* src/files.c: Include <dirname.h> and <stdio-safer.h> in the
usual order for ../lib/*.h files.
(file_name_split): Use last_component, not base_name, to adjust
to gnulib changes.
* src/parse-gram.h: Include <strverscmp.h> in the usual order
for ../lib/*.h files.
(YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
Define unconditionally, since we now assume the stdint module.
* src/scan-skel.l: Include <dirname.h>.
(BASE_QPUTS): Use last_component, not base_name.
* src/system.h: Include <unlocked-io.h> in the usual order
for ../lib/*.h files.  Include <stdint.h> unconditionally,
since we now use the stdint module.
(uintptr_t): Declare if UINTPTR_MAX is not defined, not
HAVE_UINTPTR_T, since we now use the stdint module.
(base_name): Remove decl, since files now include <dirname.h>
to get the decl.

bootstrap

@@ -109,6 +109,7 @@ quote
 quotearg
 stdbool
 stdio-safer
+stdint
 stpcpy
 strerror
 strtoul
@@ -145,7 +146,6 @@ for gnulib_file in $gnulib_files; do
   dest=$gnulib_file
 
   case $gnulib_file in
-  m4/onceonly_2_57.m4) dest=m4/onceonly.m4;;
   # These will be overwritten by autopoint, which still uses
   # old jm_.* macro names, so we have to keep both copies.
   # m4/gettext.m4 isn't mentioned here, since it's patched below.
@@ -261,7 +261,6 @@ intl_files_to_remove='
   m4/lib-ld.m4
   m4/lib-prefix.m4
   m4/longdouble.m4
-  m4/longlong.m4
   m4/po.m4
   m4/printf-posix.m4
   m4/signed.m4
@@ -269,7 +268,6 @@ intl_files_to_remove='
   m4/stdint_h.m4
   m4/uintmax_t.m4
   m4/ulonglong.m4
-  m4/wchar_t.m4
   m4/wint_t.m4
   m4/xsize.m4
 '
@@ -296,6 +294,12 @@ sed '
   s/^\(XGETTEXT_OPTIONS\) *=.*/\1 = --keyword=YY_/
 ' <po/Makevars >runtime-po/Makevars
 
+# Append 'datarootdir = $(prefix)/share' to po/Makefile.in.in to work
+# around an incompatibility between Autoconf 2.60 and gettext 0.14.6.
+# This hack can be removed once we assume gettext 0.15 or later.
+grep datarootdir po/Makefile.in.in >/dev/null ||
+  echo 'datarootdir = @datarootdir@' >>po/Makefile.in.in
+
 # Copy identical files from po to runtime-po.
 (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)