regenerate some text files

commands used for regeneration:
$ git grep FIXME | grep -v FIXMES.txt > FIXMES.txt
$ git grep " XXX" | grep -v XXX.txt > XXX.txt
(note the leading space)
Also some other changes

.github/workflows/codeql.yml

@@ -70,7 +70,7 @@ jobs:
       run: |
         case ${{ matrix.os }} in
           ubuntu*)
-            sudo apt-get -y install libc6-dev-amd64-cross libgcc-s1-amd64-cross libtbb-dev gobjc gobjc-multilib xutils-dev publib-dev libiberty-dev libc6-dev-i386 libmm-dev kmod libc-bin dcfldd libtree buildd mini-buildd
+            sudo apt-get -qq install libc6-dev-amd64-cross libgcc-s1-amd64-cross libtbb-dev gobjc gobjc-multilib xutils-dev publib-dev libiberty-dev libc6-dev-i386 libmm-dev kmod libc-bin dcfldd libtree buildd mini-buildd
             if test -x /home/linuxbrew/.linuxbrew/bin/brew; then \
               eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"; \
             else \

FIXMES.txt

@@ -60,16 +60,18 @@ configure:# FIXME: To remove some day.
 configure:# FIXME: To remove some day.
 configure:   # FIXME: It is wrong to rewrite CC.
 configure:  # FIXME: It is wrong to rewrite AR.
+configure:  # FIXME: It is wrong to rewrite AR.
+configure:# ARFLAGS for automake and AR_FLAGS for libtool).  FIXME: Make the AR_FLAGS
 configure:            # FIXME: we need at least 68020 code to build shared libraries, but
-configure:    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+configure:    # FIXME: the MSVC++ and ICC port hasn't been tested in a loooong time
 configure:	# support --undefined.  This deserves some investigation.  FIXME
 configure:	# FIXME: Setting linknames here is a bad hack.
 configure:	# FIXME: Setting linknames here is a bad hack.
 configure:	# FIXME: Should let the user specify the lib program.
 configure:      # FIXME: we may have to deal with multi-command sequences.
 configure:      # FIXME: find the short name or the path components, as spaces are
 configure:  # FIXME: first we should search . and the directory the executable is in
-configure:# FIXME - insert some real tests, host_os isn't really good enough
+configure:      # FIXME - insert some real tests, host_os isn't really good enough
 configure:        # FIXME: insert proper C++ library support
 configure:	  # support --undefined.  This deserves some investigation.  FIXME
 configure:	  # FIXME: insert proper C++ library support
@@ -100,15 +102,17 @@ configure:      # FIXME: we may have to deal with multi-command sequences.
 configure:      # FIXME: find the short name or the path components, as spaces are
 configure:  # FIXME: first we should search . and the directory the executable is in
 configure:    #FIXME: config.log reports a path found for these, but still says "no":
-configure:  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FIXME existence of three headers" >&5
-configure:$as_echo_n "checking for FIXME existence of three headers... " >&6; }
-configure:  # FIXME -- no need to abort building the whole package
-configure:  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FIXME existence of three headers" >&5
-configure:$as_echo_n "checking for FIXME existence of three headers... " >&6; }
+configure:# FIXME: these may require some additional flags:
+configure:  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for FIXME existence of three headers" >&5
+configure:printf %s "checking for FIXME existence of three headers... " >&6; }
 configure:  # FIXME -- no need to abort building the whole package
+configure:    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for FIXME existence of three headers" >&5
+configure:printf %s "checking for FIXME existence of three headers... " >&6; }
+configure:    # FIXME -- no need to abort building the whole package
 configure:# FIXME: This hack should be removed a few years after 2.60.
 configure:# FIXME: do we really want to maintain this feature?
 configure.ac:    dnl#FIXME: make sure these flags are actually used properly
+configure.ac:# FIXME: these may require some additional flags:
 fallocate.c:/* FIXME: look at orig email for this file definition. */
 fallocate.c:  return ENOSYS; /* FIXME: glibc interface may change to set errno and ret -1 */
 fallocate.c:  /* FIXME: support fcntl(fd, F_ALLOCSP, ...) on solaris.  */
@@ -143,16 +147,18 @@ localename.c:				/* FIXME: Adjust this when such locales appear on Unix.  */
 localename.c:				/* FIXME: Adjust this when such locales appear on Unix.  */
 localename.c:					/* FIXME: Adjust this when Tamazight locales appear on Unix.  */
 m4/ccstdc.m4:dnl# FIXME: cannot do this because then AC_USE_SYSTEM_EXTENSIONS will NOT
+m4/extensions.m4:dnl (FIXME: Which ones?)
 m4/include_next.m4:dnl# FIXME: gl_next_header and gl_header_exists must be used unquoted
 m4/lib-link.m4:                      dnl FIXME: Not sure whether we should use
 m4/lib-link.m4:                      dnl FIXME: Not sure whether we should use
 m4/libtool.m4:## FIXME: Eliminate VARNAME ##
-m4/libtool.m4:# FIXME - insert some real tests, host_os isn't really good enough
+m4/libtool.m4:# ARFLAGS for automake and AR_FLAGS for libtool).  FIXME: Make the AR_FLAGS
+m4/libtool.m4:      # FIXME - insert some real tests, host_os isn't really good enough
 m4/libtool.m4:      # FIXME: find the short name or the path components, as spaces are
 m4/libtool.m4:  # FIXME: first we should search . and the directory the executable is in
 m4/libtool.m4:            # FIXME: we need at least 68020 code to build shared libraries, but
 m4/libtool.m4:            # FIXME: we need at least 68020 code to build shared libraries, but
-m4/libtool.m4:    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+m4/libtool.m4:    # FIXME: the MSVC++ and ICC port hasn't been tested in a loooong time
 m4/libtool.m4:	# support --undefined.  This deserves some investigation.  FIXME
 m4/libtool.m4:	# FIXME: Setting linknames here is a bad hack.
 m4/libtool.m4:	# FIXME: Setting linknames here is a bad hack.
@@ -186,6 +192,8 @@ m4/libtool.m4:        # FIXME: insert proper C++ library support
 m4/libtool.m4:        # FIXME: insert proper C++ library support
 m4/ls-mntd-fs.m4:  AC_MSG_CHECKING([for FIXME existence of three headers])
 m4/ls-mntd-fs.m4:  # FIXME -- no need to abort building the whole package
+m4/mountlist.m4:    AC_CACHE_CHECK([for FIXME existence of three headers],
+m4/mountlist.m4:    # FIXME -- no need to abort building the whole package
 m4/programs_extra.m4:  dnl# FIXME: are all of these correct?
 m4/programs_extra.m4:    #FIXME: config.log reports a path found for these, but still says "no":
 m4/warn-on-use.m4:dnl# FIXME: gl_Symbol must be used unquoted until we can assume
@@ -195,3 +203,4 @@ mktime.c:/* FIXME: This should use a signed type wide enough to hold any UTC
 openat-proc.c:   FIXME - if the kernel ever adds support for multi-thread safety for
 pipe2.c:      /* FIXME: clang says that this condition will never be reached...
 quotearg.c:      /* FIXME: technically, the type of n1 should be 'unsigned int',
+strerror_r.c:/* FIXME: ought to return char * instead? */

Makefile.am

@@ -1646,7 +1646,7 @@ getopttest_CFLAGS = $(getopttest_CPPFLAGS) -Wall -Wextra -ggdb3
 
 ## extra test dependencies:
 check-local: all
-	if test -x "`which machocheck`" -a -d .libs -a -r .libs/libUnixToOSX.dylib; then \
+	if test -x "`which machocheck`" -a -d .libs -a -r .libs/libUnixToOSX.dylib -a -x .libs/libUnixToOSX.dylib; then \
 	  machocheck -progress .libs/libUnixToOSX.dylib; \
 	else \
 	  echo "skipping checks of mach-o format validity"; \

XXX.txt

@@ -1,9 +1,9 @@
 argp/argp-standalone-1.3/argp.h:#define ARGP_ERR_UNKNOWN	E2BIG /* Hurd should never need E2BIG.  XXX */
-build-aux/config.guess:    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+build-aux/config.guess:  if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
 configure:        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+crypt.c: * XXX: this feature is currently unused, see "endian" comment below.
 getopt.c:   XXX This is no good solution.  We should rather copy the args so
 libftw0/Fink/libftw0.patch:+	/* XXX - nfds is currently unused */
-libftw0/ftw.c:	/* XXX - nfds is currently unused */
+libftw0/ftw.c:	/* XXX: nfds is currently unused */
 m4/libtool.m4:        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
 m4/xorg-macros.m4:# For XXX in {TXT, PDF, PS, HTML}, the AM_CONDITIONAL "BUILD_XXXDOC"
-stddef.in.h:#endif /* __need_XXX */

configure.ac

@@ -245,9 +245,10 @@ if test "x${ac_cv_search_CFPreferencesCopyAppValue}y" != "xnoy"; then
   AC_DEFINE([CFPREFERENCESCOPYAPPVALUE_OK_TO_LINK],[1],
     [Define to 1 if we are ok to link w/a library for CFPreferencesCopyAppValue])
 fi
-AC_SEARCH_LIBS([__fpending],[c System magic pub gnu iberty fpending]) ## (ok)
-AC_SEARCH_LIBS([chdir_long],[c System magic pub gnu iberty chdir]) ## (newline)
-AC_SEARCH_LIBS([dupfd],[c System magic pub gnu iberty dup dupfd])dnl
+AC_SEARCH_LIBS([__fpending],[c System magic pub gnu iberty fpending])
+AC_SEARCH_LIBS([chdir_long],[c System magic pub gnu iberty chdir])
+AC_SEARCH_LIBS([dupfd],[c System magic pub gnu iberty dup dupfd])
+AC_SEARCH_LIBS([fd_safer_flag],[c System magic pub gnu iberty fd])dnl
 
 # Threading.
 AC_MSG_CHECKING([for threading library characteristics...])

error.c

@@ -220,8 +220,11 @@ print_errno_message(int errnum)
 #endif /* _LIBC */
 }
 
-static void error_tail(int status, int errnum, const char *message,
-					   va_list args)
+static void
+#if defined(_GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD) && defined(_GL_ARG_NONNULL)
+_GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD(3, 0) _GL_ARG_NONNULL((3))
+#endif /* _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD && _GL_ARG_NONNULL */
+error_tail(int status, int errnum, const char *message, va_list args)
 {
   int should_do_vprintf = 1;
 #if defined(_LIBC) && _LIBC

obstack_printf.c

@@ -17,6 +17,7 @@
 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
 # if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1))
 #   pragma GCC diagnostic ignored "-Wredundant-decls"
+#   pragma GCC diagnostic ignored "-Wformat-nonliteral"
 # endif /* GCC 4.1+ */
 #endif /* gcc */
 

stddef.in.h

@@ -83,4 +83,4 @@
 
 #  endif /* _@GUARD_PREFIX@_STDDEF_H */
 # endif /* _@GUARD_PREFIX@_STDDEF_H */
-#endif /* __need_XXX */
+#endif /* __need_[wchar_t|size_t|ptrdiff_t|NULL|wint_t] */