* m4/fnmatch.m4 (gl_FUNC_FNMATCH_POSIX): Set REPLACE_FNMATCH to 1 on
AIX in 32-bit mode.
* lib/fnmatch.c: Include <uchar.h>. Conditionally include unistr.h.
(UCHAR_TO_WCHAR): Renamed from BTOWC.
(WCHAR_T, WINT_T, BTOWC, MBSRTOWCS, WCSLEN, WCSCAT, WMEMPCPY, WMEMCHR,
TOWLOWER, WCTYPE_T, WCTYPE, ISWCTYPE): New macros.
(IS_CHAR_CLASS): Use WCTYPE instead of wctype.
(UCHAR_TO_WCHAR): Use BTOWC instead of btowc.
(FOLD): Use TOWLOWER instead of towlower.
(CHAR): Use WCHAR_T instead of wchar_t.
(UCHAR, INT): Use WINT_T instead of wint_t.
(STRLEN): Use WCSLEN instead of wcslen.
(STRCAT): Use WCSCAT instead of wcscat.
(MEMPCPY): Use WMEMPCPY instead of wmempcpy.
(MEMCHR): Use WMEMCHR instead of wmemchr.
(is_char_class): Use WCTYPE_T instead of wctype_t, WCHAR_T instead of
wchar_t, WCTYPE instead of wctype.
(fnmatch): Use WCHAR_T instead of wchar_t, MBSRTOWCS instead of
mbsrtowcs.
* lib/fnmatch_loop.c (FCT): Use WCTYPE_T instead of wctype_t, ISWCTYPE
instead of iswctype. Update for renamed BTOWC.
* modules/fnmatch (Depends-on): Add btoc32, c32tolower,
c32_get_type_test, c32_apply_type_test, mbsrtoc32s, unistr/u32-chr,
unistr/u32-pcpy, unistr/u32-strcat, unistr/u32-strlen.
(Link): Add $(LIBUNISTRING).
* modules/fnmatch-tests (Makefile.am): Link test-fnmatch with
$(LIBUNISTRING).
* doc/posix-functions/fnmatch.texi: Move the Cygwin, mingw, MSVC, AIX
bug descriptions to the "fixed by Gnulib" section.