gdb: update gnulib import

This is mostly to get this commit from gnulib:

    e22cd2677a4b7beacbf30b93bb0559f7b89f96ce
    Add ‘extern "C"’ to count-one-bits.h etc.

... which fixes this compilation problem I observed with clang++:

      CXXLD  gdb
    arch/arm-get-next-pcs.o:arm-get-next-pcs.c:function thumb_get_next_pcs_raw(arm_get_next_pcs*): error: undefined reference to 'count_one_bits(unsigned int)'
    <more such undefined references>

I built-tested on GNU/Linux x86-64 (gcc-9 and clang-9) as well as with the
x86_64-w64-mingw32-gcc cross-compiler.

gnulib/ChangeLog:

	* update-gnulib.sh (GNULIB_COMMIT_SHA1): Bump to
	e22cd2677a4b7beacbf30b93bb0559f7b89f96ce.
	* Makefile.in, config.in, configure, import/*: Re-generate.

1 files changed, 17 insertions, 14 deletions

diff --git a/gnulib/import/localcharset.h b/gnulib/import/localcharset.h
index 7d0d771..aa623be 100644
--- a/gnulib/import/localcharset.h
+++ b/gnulib/import/localcharset.h
@@ -1,5 +1,5 @@
 /* Determine a canonical name for the current locale's character encoding.
-   Copyright (C) 2000-2003, 2009-2019 Free Software Foundation, Inc.
+   Copyright (C) 2000-2003, 2009-2020 Free Software Foundation, Inc.
    This file is part of the GNU CHARSET Library.
 
    This program is free software; you can redistribute it and/or modify
@@ -26,7 +26,10 @@ extern "C" {
 
 /* Determine the current locale's character encoding, and canonicalize it
    into one of the canonical names listed below.
-   The result must not be freed; it is statically allocated.
+   The result must not be freed; it is statically allocated.  The result
+   becomes invalid when setlocale() is used to change the global locale, or
+   when the value of one of the environment variables LC_ALL, LC_CTYPE, LANG
+   is changed; threads in multithreaded programs should not do this.
    If the canonical name cannot be determined, the result is a non-canonical
    name.  */
 extern const char * locale_charset (void);
@@ -45,15 +48,15 @@ extern const char * locale_charset (void);
                                     (darwin = Mac OS X, windows = native Windows)
 
    ASCII, ANSI_X3.4-1968       glibc solaris freebsd netbsd darwin minix cygwin
-   ISO-8859-1              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin
-   ISO-8859-2              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin
+   ISO-8859-1              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin zos
+   ISO-8859-2              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin zos
    ISO-8859-3              Y   glibc solaris cygwin
    ISO-8859-4              Y   hpux osf solaris freebsd netbsd openbsd darwin
-   ISO-8859-5              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin
+   ISO-8859-5              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin zos
    ISO-8859-6              Y   glibc aix hpux solaris cygwin
-   ISO-8859-7              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin
-   ISO-8859-8              Y   glibc aix hpux osf solaris cygwin
-   ISO-8859-9              Y   glibc aix hpux irix osf solaris freebsd darwin cygwin
+   ISO-8859-7              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin cygwin zos
+   ISO-8859-8              Y   glibc aix hpux osf solaris cygwin zos
+   ISO-8859-9              Y   glibc aix hpux irix osf solaris freebsd darwin cygwin zos
    ISO-8859-13                 glibc hpux solaris freebsd netbsd openbsd darwin cygwin
    ISO-8859-14                 glibc cygwin
    ISO-8859-15                 glibc aix irix osf solaris freebsd netbsd openbsd darwin cygwin
@@ -76,7 +79,7 @@ extern const char * locale_charset (void);
    CP874                       windows dos
    CP922                       aix
    CP932                       aix cygwin windows dos
-   CP943                       aix
+   CP943                       aix zos
    CP949                       osf darwin windows dos
    CP950                       windows dos
    CP1046                      aix
@@ -92,17 +95,17 @@ extern const char * locale_charset (void);
    CP1255                      glibc windows
    CP1256                      windows
    CP1257                      windows
-   GB2312                  Y   glibc aix hpux irix solaris freebsd netbsd darwin cygwin
+   GB2312                  Y   glibc aix hpux irix solaris freebsd netbsd darwin cygwin zos
    EUC-JP                  Y   glibc aix hpux irix osf solaris freebsd netbsd darwin cygwin
-   EUC-KR                  Y   glibc aix hpux irix osf solaris freebsd netbsd darwin cygwin
+   EUC-KR                  Y   glibc aix hpux irix osf solaris freebsd netbsd darwin cygwin zos
    EUC-TW                      glibc aix hpux irix osf solaris netbsd
-   BIG5                    Y   glibc aix hpux osf solaris freebsd netbsd darwin cygwin
+   BIG5                    Y   glibc aix hpux osf solaris freebsd netbsd darwin cygwin zos
    BIG5-HKSCS                  glibc hpux solaris netbsd darwin
    GBK                         glibc aix osf solaris freebsd darwin cygwin windows dos
    GB18030                     glibc hpux solaris freebsd netbsd darwin
    SHIFT_JIS               Y   hpux osf solaris freebsd netbsd darwin
    JOHAB                       glibc solaris windows
-   TIS-620                     glibc aix hpux osf solaris cygwin
+   TIS-620                     glibc aix hpux osf solaris cygwin zos
    VISCII                  Y   glibc
    TCVN5712-1                  glibc
    ARMSCII-8                   glibc freebsd netbsd darwin
@@ -116,7 +119,7 @@ extern const char * locale_charset (void);
    HP-KANA8                    hpux
    DEC-KANJI                   osf
    DEC-HANYU                   osf
-   UTF-8                   Y   glibc aix hpux osf solaris netbsd darwin cygwin
+   UTF-8                   Y   glibc aix hpux osf solaris netbsd darwin cygwin zos
 
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