This also include my patch to lib/argp.hh for C++ compilation.

* lib/Makefile.am, lib/alloca.in.h, lib/argmatch.c, lib/argmatch.h,
lib/argp-ba.c, lib/argp-eexst.c, lib/argp-fmtstream.c,
lib/argp-fmtstream.h, lib/argp-fs-xinl.c, lib/argp-help.c,
lib/argp-namefrob.h, lib/argp-parse.c, lib/argp-pin.c, lib/argp-pv.c,
lib/argp-pvh.c, lib/argp-xinl.c, lib/argp.h, lib/asnprintf.c,
lib/basename-lgpl.c, lib/c-ctype.h, lib/c-strcase.h,
lib/c-strcasecmp.c, lib/c-strcaseeq.h, lib/c-strncasecmp.c,
lib/config.charset, lib/dirname-lgpl.c, lib/dirname.h, lib/dosname.h,
lib/errno.in.h, lib/error.c, lib/error.h, lib/exitfail.c,
lib/exitfail.h, lib/fcntl.in.h, lib/float+.h, lib/float.c,
lib/float.in.h, lib/getopt.c, lib/getopt.in.h, lib/getopt1.c,
lib/getopt_int.h, lib/gettext.h, lib/gettimeofday.c,
lib/hard-locale.c, lib/hard-locale.h, lib/intprops.h, lib/isatty.c,
lib/itold.c, lib/localcharset.c, lib/localcharset.h, lib/lstat.c,
lib/malloc.c, lib/mbrtowc.c, lib/mbsinit.c, lib/memchr.c,
lib/mempcpy.c, lib/mkstemp.c, lib/mkstemps.c, lib/msvc-inval.c,
lib/msvc-inval.h, lib/msvc-nothrow.c, lib/msvc-nothrow.h,
lib/pathmax.h, lib/printf-args.c, lib/printf-args.h,
lib/printf-parse.c, lib/printf-parse.h, lib/progname.c,
lib/progname.h, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
lib/rawmemchr.c, lib/ref-add.sin, lib/ref-del.sin,
lib/secure_getenv.c, lib/size_max.h, lib/sleep.c, lib/stat.c,
lib/stdalign.in.h, lib/stdbool.in.h, lib/stddef.in.h, lib/stdint.in.h,
lib/stdio.in.h, lib/stdlib.in.h, lib/stpcpy.c, lib/strcasecmp.c,
lib/strchrnul.c, lib/streq.h, lib/strerror-override.c,
lib/strerror-override.h, lib/strerror.c, lib/string.in.h,
lib/strings.in.h, lib/stripslash.c, lib/strncasecmp.c, lib/strndup.c,
lib/strnlen.c, lib/strverscmp.c, lib/sys_stat.in.h, lib/sys_time.in.h,
lib/sys_types.in.h, lib/sys_wait.in.h, lib/sysexits.in.h,
lib/tempname.c, lib/tempname.h, lib/time.in.h, lib/unistd.in.h,
lib/vasnprintf.c, lib/vasnprintf.h, lib/verify.h, lib/vsnprintf.c,
lib/wchar.in.h, lib/wctype.in.h, lib/xalloc-die.c,
lib/xalloc-oversized.h, lib/xalloc.h, lib/xmalloc.c, lib/xsize.h,
m4/00gnulib.m4, m4/absolute-header.m4, m4/alloca.m4, m4/argp.m4,
m4/configmake.m4, m4/dirname.m4, m4/double-slash-root.m4,
m4/errno_h.m4, m4/error.m4, m4/exponentd.m4, m4/extensions.m4,
m4/extern-inline.m4, m4/fcntl-o.m4, m4/fcntl_h.m4, m4/float_h.m4,
m4/getopt.m4, m4/gettimeofday.m4, m4/glibc21.m4, m4/gnulib-cache.m4,
m4/gnulib-common.m4, m4/gnulib-comp.m4, m4/gnulib-tool.m4,
m4/hard-locale.m4, m4/include_next.m4, m4/intmax_t.m4,
m4/inttypes_h.m4, m4/isatty.m4, m4/largefile.m4, m4/localcharset.m4,
m4/locale-fr.m4, m4/locale-ja.m4, m4/locale-zh.m4, m4/longlong.m4,
m4/lstat.m4, m4/malloc.m4, m4/math_h.m4, m4/mbrtowc.m4, m4/mbsinit.m4,
m4/mbstate_t.m4, m4/memchr.m4, m4/mempcpy.m4, m4/mkstemp.m4,
m4/mkstemps.m4, m4/mmap-anon.m4, m4/msvc-inval.m4, m4/msvc-nothrow.m4,
m4/multiarch.m4, m4/nocrash.m4, m4/off_t.m4, m4/pathmax.m4,
m4/printf.m4, m4/quote.m4, m4/quotearg.m4, m4/rawmemchr.m4,
m4/secure_getenv.m4, m4/size_max.m4, m4/sleep.m4, m4/ssize_t.m4,
m4/stat.m4, m4/stdalign.m4, m4/stdbool.m4, m4/stddef_h.m4,
m4/stdint.m4, m4/stdint_h.m4, m4/stdio_h.m4, m4/stdlib_h.m4,
m4/stpcpy.m4, m4/strcase.m4, m4/strchrnul.m4, m4/strerror.m4,
m4/string_h.m4, m4/strings_h.m4, m4/strndup.m4, m4/strnlen.m4,
m4/strverscmp.m4, m4/sys_socket_h.m4, m4/sys_stat_h.m4,
m4/sys_time_h.m4, m4/sys_types_h.m4, m4/sys_wait_h.m4, m4/sysexits.m4,
m4/tempname.m4, m4/time_h.m4, m4/unistd_h.m4, m4/vasnprintf.m4,
m4/vsnprintf.m4, m4/warn-on-use.m4, m4/wchar_h.m4, m4/wchar_t.m4,
m4/wctype_h.m4, m4/wint_t.m4, m4/xalloc.m4, m4/xsize.m4,
tools/snippet/arg-nonnull.h, tools/snippet/c++defs.h,
tools/snippet/warn-on-use.h: Update.
* lib/getprogname.c, lib/getprogname.h, lib/limits.in.h, lib/minmax.h,
m4/getprogname.m4, m4/limits-h.m4, m4/minmax.m4: New files.