Merge from Gnulib

This incorporates: 2017-11-23 stat: work around Solaris bug with tv_nsec < 0 2017-11-12 maint: shorten https://lists.gnu.org/archive/html/... links * build-aux/config.sub, doc/misc/texinfo.tex, lib/allocator.h: * lib/fstatat.c, lib/intprops.h, lib/lstat.c, lib/signal.in.h: * lib/stat-time.h, lib/stdio-impl.h, lib/stdio.in.h: * lib/timespec.h, m4/alloca.m4, m4/extern-inline.m4: * m4/faccessat.m4, m4/fstatat.m4, m4/gnulib-common.m4: * m4/lstat.m4, m4/std-gnu11.m4, m4/sys_types_h.m4: * m4/vararrays.m4: Copy from Gnulib.
acquo · Nov 26, 2017 · 8be3aee · 8be3aee
1 parent 265cee5
commit 8be3aee
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diff --git a/build-aux/config.sub b/build-aux/config.sub
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-11-04'
+timestamp='2017-11-23'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -1546,6 +1546,19 @@ case $os in
 	-dicos*)
 		os=-dicos
 		;;
+	-pikeos*)
+		# Until real need of OS specific support for
+		# particular features comes up, bare metal
+		# configurations are quite functional.
+		case $basic_machine in
+		    arm*)
+			os=-eabi
+			;;
+		    *)
+			os=-elf
+			;;
+		esac
+		;;
 	-nacl*)
 		;;
 	-ios)

diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex
@@ -3,7 +3,7 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2017-09-11.18}
+\def\texinfoversion{2017-11-17.06}
 %
 % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
 % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
@@ -5969,24 +5969,30 @@
     % Split the last of the double-column material.
     \savemarks
     \balancecolumns
-    %
+  }%
+  \eject % call the \output just set
+  \ifdim\pagetotal=0pt
     % Having called \balancecolumns once, we do not
     % want to call it again.  Therefore, reset \output to its normal
     % definition right away.
     \global\output = {\onepageout{\pagecontents\PAGE}}%
-  }%
-  \eject
-  \endgroup % started in \begindoublecolumns
-  \restoremarks
-  % Leave the double-column material on the current page, no automatic
-  % page break.
-  \box\balancedcolumns
-  %
-  % \pagegoal was set to the doubled \vsize above, since we restarted
-  % the current page.  We're now back to normal single-column
-  % typesetting, so reset \pagegoal to the normal \vsize.
-  \global\vsize = \txipageheight %
-  \pagegoal = \txipageheight %
+    %
+    \endgroup % started in \begindoublecolumns
+    \restoremarks
+    % Leave the double-column material on the current page, no automatic
+    % page break.
+    \box\balancedcolumns
+    %
+    % \pagegoal was set to the doubled \vsize above, since we restarted
+    % the current page.  We're now back to normal single-column
+    % typesetting, so reset \pagegoal to the normal \vsize.
+    \global\vsize = \txipageheight %
+    \pagegoal = \txipageheight %
+  \else
+    % We had some left-over material.  This might happen when \doublecolumnout
+    % is called in \balancecolumns.  Try again.
+    \expandafter\enddoublecolumns
+  \fi
 }
 \newbox\balancedcolumns
 \setbox\balancedcolumns=\vbox{shouldnt see this}%
@@ -6001,6 +6007,7 @@
   \ifdim\dimen@<5\baselineskip
     % Don't split a short final column in two.
     \setbox2=\vbox{}%
+    \global\setbox\balancedcolumns=\vbox{\pagesofar}%
   \else
     \divide\dimen@ by 2 % target to split to
     \dimen@ii = \dimen@
@@ -6016,15 +6023,15 @@
       \repeat
     }%
     % Now the left column is in box 1, and the right column in box 3.
+    %
     % Check whether the left column has come out higher than the page itself.  
     % (Note that we have doubled \vsize for the double columns, so
     % the actual height of the page is 0.5\vsize).
     \ifdim2\ht1>\vsize
-      % Just split the last of the double column material roughly in half.
-      \setbox2=\box0
-      \setbox0 = \vsplit2 to \dimen@ii
-      \setbox0=\vbox to \dimen@ii {\unvbox0\vfill}%
-      \setbox2=\vbox to \dimen@ii {\unvbox2\vfill}%
+      % It appears that we have been called upon to balance too much material.
+      % Output some of it with \doublecolumnout, leaving the rest on the page.
+      \setbox\PAGE=\box0
+      \doublecolumnout
     \else
       % Compare the heights of the two columns.
       \ifdim4\ht1>5\ht3
@@ -6037,10 +6044,10 @@
         \setbox2=\vbox to\ht1{\unvbox3\unskip}%
         \setbox0=\vbox to\ht1{\unvbox1\unskip}%
       \fi
+      \global\setbox\balancedcolumns=\vbox{\pagesofar}%
     \fi
   \fi
   %
-  \global\setbox\balancedcolumns=\vbox{\pagesofar}%
 }
 \catcode`\@ = \other
 

diff --git a/lib/allocator.h b/lib/allocator.h
@@ -29,7 +29,7 @@ struct allocator
   /* Do not use GCC attributes such as __attribute__ ((malloc)) with
      the function types pointed at by these members, because these
      attributes do not work with pointers to functions.  See
-     <https://lists.gnu.org/archive/html/bug-gnulib/2011-04/msg00007.html>.  */
+     <https://lists.gnu.org/r/bug-gnulib/2011-04/msg00007.html>.  */
 
   /* Call ALLOCATE to allocate memory, like 'malloc'.  On failure ALLOCATE
      should return NULL, though not necessarily set errno.  When given

diff --git a/lib/fstatat.c b/lib/fstatat.c
@@ -41,6 +41,8 @@ orig_fstatat (int fd, char const *filename, struct stat *buf, int flags)
    above.  */
 #include "sys/stat.h"
 
+#include "stat-time.h"
+
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>
@@ -51,6 +53,12 @@ orig_fstatat (int fd, char const *filename, struct stat *buf, int flags)
 #  define LSTAT_FOLLOWS_SLASHED_SYMLINK 0
 # endif
 
+static int
+normal_fstatat (int fd, char const *file, struct stat *st, int flag)
+{
+  return stat_time_normalize (orig_fstatat (fd, file, st, flag), st);
+}
+
 /* fstatat should always follow symbolic links that end in /, but on
    Solaris 9 it doesn't if AT_SYMLINK_NOFOLLOW is specified.
    Likewise, trailing slash on a non-directory should be an error.
@@ -63,7 +71,7 @@ orig_fstatat (int fd, char const *filename, struct stat *buf, int flags)
 int
 rpl_fstatat (int fd, char const *file, struct stat *st, int flag)
 {
-  int result = orig_fstatat (fd, file, st, flag);
+  int result = normal_fstatat (fd, file, st, flag);
   size_t len;
 
   if (LSTAT_FOLLOWS_SLASHED_SYMLINK || result != 0)
@@ -79,7 +87,7 @@ rpl_fstatat (int fd, char const *file, struct stat *st, int flag)
           errno = ENOTDIR;
           return -1;
         }
-      result = orig_fstatat (fd, file, st, flag & ~AT_SYMLINK_NOFOLLOW);
+      result = normal_fstatat (fd, file, st, flag & ~AT_SYMLINK_NOFOLLOW);
     }
   /* Fix stat behavior.  */
   if (result == 0 && !S_ISDIR (st->st_mode) && file[len - 1] == '/')

diff --git a/lib/intprops.h b/lib/intprops.h
@@ -26,7 +26,7 @@
 #define _GL_INT_CONVERT(e, v) (0 * (e) + (v))
 
 /* Act like _GL_INT_CONVERT (E, -V) but work around a bug in IRIX 6.5 cc; see
-   <https://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>.  */
+   <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00406.html>.  */
 #define _GL_INT_NEGATE_CONVERT(e, v) (0 * (e) - (v))
 
 /* The extra casts in the following macros work around compiler bugs,
@@ -179,7 +179,7 @@
 /* Return 1 if A * B would overflow in [MIN,MAX] arithmetic.
    See above for restrictions.  Avoid && and || as they tickle
    bugs in Sun C 5.11 2010/08/13 and other compilers; see
-   <https://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>.  */
+   <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00401.html>.  */
 #define INT_MULTIPLY_RANGE_OVERFLOW(a, b, min, max)     \
   ((b) < 0                                              \
    ? ((a) < 0                                           \
@@ -443,7 +443,7 @@
    implementation-defined result or signal for values outside T's
    range.  However, code that works around this theoretical problem
    runs afoul of a compiler bug in Oracle Studio 12.3 x86.  See:
-   https://lists.gnu.org/archive/html/bug-gnulib/2017-04/msg00049.html
+   https://lists.gnu.org/r/bug-gnulib/2017-04/msg00049.html
    As the compiler bug is real, don't try to work around the
    theoretical problem.  */
 

diff --git a/lib/lstat.c b/lib/lstat.c
@@ -47,6 +47,8 @@ orig_lstat (const char *filename, struct stat *buf)
    above.  */
 # include "sys/stat.h"
 
+# include "stat-time.h"
+
 # include <string.h>
 # include <errno.h>
 
@@ -66,32 +68,33 @@ orig_lstat (const char *filename, struct stat *buf)
 int
 rpl_lstat (const char *file, struct stat *sbuf)
 {
-  size_t len;
-  int lstat_result = orig_lstat (file, sbuf);
-
-  if (lstat_result != 0)
-    return lstat_result;
+  int result = orig_lstat (file, sbuf);
 
   /* This replacement file can blindly check against '/' rather than
      using the ISSLASH macro, because all platforms with '\\' either
      lack symlinks (mingw) or have working lstat (cygwin) and thus do
      not compile this file.  0 len should have already been filtered
      out above, with a failure return of ENOENT.  */
-  len = strlen (file);
-  if (file[len - 1] != '/' || S_ISDIR (sbuf->st_mode))
-    return 0;
-
-  /* At this point, a trailing slash is only permitted on
-     symlink-to-dir; but it should have found information on the
-     directory, not the symlink.  Call stat() to get info about the
-     link's referent.  Our replacement stat guarantees valid results,
-     even if the symlink is not pointing to a directory.  */
-  if (!S_ISLNK (sbuf->st_mode))
+  if (result == 0)
     {
-      errno = ENOTDIR;
-      return -1;
+      if (S_ISDIR (sbuf->st_mode) || file[strlen (file) - 1] != '/')
+        result = stat_time_normalize (result, sbuf);
+      else
+        {
+          /* At this point, a trailing slash is permitted only on
+             symlink-to-dir; but it should have found information on the
+             directory, not the symlink.  Call 'stat' to get info about the
+             link's referent.  Our replacement stat guarantees valid results,
+             even if the symlink is not pointing to a directory.  */
+          if (!S_ISLNK (sbuf->st_mode))
+            {
+              errno = ENOTDIR;
+              return -1;
+            }
+          result = stat (file, sbuf);
+        }
     }
-  return stat (file, sbuf);
+  return result;
 }
 
 #endif /* HAVE_LSTAT */
diff --git a/lib/signal.in.h b/lib/signal.in.h
@@ -200,7 +200,7 @@ typedef int verify_NSIG_constraint[NSIG <= 32 ? 1 : -1];
 /* When also using extern inline, suppress the use of static inline in
    standard headers of problematic Apple configurations, as Libc at
    least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
-   <https://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html>.
+   <https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
    Perhaps Apple will fix this some day.  */
 #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
      && (defined __i386__ || defined __x86_64__))

diff --git a/lib/stat-time.h b/lib/stat-time.h
@@ -20,6 +20,10 @@
 #ifndef STAT_TIME_H
 #define STAT_TIME_H 1
 
+#include "intprops.h"
+
+#include <errno.h>
+#include <stddef.h>
 #include <sys/stat.h>
 #include <time.h>
 
@@ -202,6 +206,47 @@ get_stat_birthtime (struct stat const *st)
   return t;
 }
 
+/* If a stat-like function returned RESULT, normalize the timestamps
+   in *ST, in case this platform suffers from the Solaris 11 bug where
+   tv_nsec might be negative.  Return the adjusted RESULT, setting
+   errno to EOVERFLOW if normalization overflowed.  This function
+   is intended to be private to this .h file.  */
+_GL_STAT_TIME_INLINE int
+stat_time_normalize (int result, struct stat *st)
+{
+#if defined __sun && defined STAT_TIMESPEC
+  if (result == 0)
+    {
+      long int timespec_resolution = 1000000000;
+      short int const ts_off[] = { offsetof (struct stat, st_atim),
+                                   offsetof (struct stat, st_mtim),
+                                   offsetof (struct stat, st_ctim) };
+      int i;
+      for (i = 0; i < sizeof ts_off / sizeof *ts_off; i++)
+        {
+          struct timespec *ts = (struct timespec *) ((char *) st + ts_off[i]);
+          long int q = ts->tv_nsec / timespec_resolution;
+          long int r = ts->tv_nsec % timespec_resolution;
+          if (r < 0)
+            {
+              r += timespec_resolution;
+              q--;
+            }
+          ts->tv_nsec = r;
+          /* Overflow is possible, as Solaris 11 stat can yield
+             tv_sec == TYPE_MINIMUM (time_t) && tv_nsec == -1000000000.
+             INT_ADD_WRAPV is OK, since time_t is signed on Solaris.  */
+          if (INT_ADD_WRAPV (q, ts->tv_sec, &ts->tv_sec))
+            {
+              errno = EOVERFLOW;
+              return -1;
+            }
+        }
+    }
+#endif
+  return result;
+}
+
 #ifdef __cplusplus
 }
 #endif

diff --git a/lib/stdio-impl.h b/lib/stdio-impl.h
@@ -81,7 +81,7 @@
 #ifdef __TANDEM                     /* NonStop Kernel */
 # ifndef _IOERR
 /* These values were determined by the program 'stdioext-flags' at
-   <https://lists.gnu.org/archive/html/bug-gnulib/2010-12/msg00165.html>.  */
+   <https://lists.gnu.org/r/bug-gnulib/2010-12/msg00165.html>.  */
 #  define _IOERR   0x40
 #  define _IOREAD  0x80
 #  define _IOWRT    0x4
@@ -132,7 +132,7 @@ struct _gl_real_FILE
 # define fp_ ((struct _gl_real_FILE *) fp)
 
 /* These values were determined by a program similar to the one at
-   <https://lists.gnu.org/archive/html/bug-gnulib/2010-12/msg00165.html>.  */
+   <https://lists.gnu.org/r/bug-gnulib/2010-12/msg00165.html>.  */
 # define _IOREAD   0x1
 # define _IOWRT    0x2
 # define _IORW     0x4

diff --git a/lib/stdio.in.h b/lib/stdio.in.h
@@ -152,7 +152,7 @@
 /* When also using extern inline, suppress the use of static inline in
    standard headers of problematic Apple configurations, as Libc at
    least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
-   <https://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html>.
+   <https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
    Perhaps Apple will fix this some day.  */
 #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
      && defined __GNUC__ && defined __STDC__)

diff --git a/lib/timespec.h b/lib/timespec.h
@@ -87,7 +87,7 @@ timespec_cmp (struct timespec a, struct timespec b)
     return 1;
 
   /* Pacify gcc -Wstrict-overflow (bleeding-edge circa 2017-10-02).  See:
-     http://lists.gnu.org/archive/html/bug-gnulib/2017-10/msg00006.html  */
+     http://lists.gnu.org/r/bug-gnulib/2017-10/msg00006.html  */
   assume (-1 <= a.tv_nsec && a.tv_nsec <= 2 * TIMESPEC_RESOLUTION);
   assume (-1 <= b.tv_nsec && b.tv_nsec <= 2 * TIMESPEC_RESOLUTION);
 

diff --git a/m4/alloca.m4 b/m4/alloca.m4
@@ -44,7 +44,7 @@ AC_DEFUN([gl_FUNC_ALLOCA],
 AC_DEFUN([gl_PREREQ_ALLOCA], [:])
 
 # This works around a bug in autoconf <= 2.68.
-# See <https://lists.gnu.org/archive/html/bug-gnulib/2011-06/msg00277.html>.
+# See <https://lists.gnu.org/r/bug-gnulib/2011-06/msg00277.html>.
 
 m4_version_prereq([2.69], [] ,[
 

diff --git a/m4/extern-inline.m4 b/m4/extern-inline.m4
@@ -11,7 +11,7 @@ AC_DEFUN([gl_EXTERN_INLINE],
 [/* Please see the Gnulib manual for how to use these macros.
 
    Suppress extern inline with HP-UX cc, as it appears to be broken; see
-   <https://lists.gnu.org/archive/html/bug-texinfo/2013-02/msg00030.html>.
+   <https://lists.gnu.org/r/bug-texinfo/2013-02/msg00030.html>.
 
    Suppress extern inline with Sun C in standards-conformance mode, as it
    mishandles inline functions that call each other.  E.g., for 'inline void f
@@ -28,13 +28,13 @@ AC_DEFUN([gl_EXTERN_INLINE],
    from calling static functions.  This bug is known to occur on:
 
      OS X 10.8 and earlier; see:
-     https://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html
+     https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html
 
      DragonFly; see
      http://muscles.dragonflybsd.org/bulk/bleeding-edge-potential/latest-per-pkg/ah-tty-0.3.12.log
 
      FreeBSD; see:
-     https://lists.gnu.org/archive/html/bug-gnulib/2014-07/msg00104.html
+     https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html
 
    OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and
    for clang but remains for g++; see <https://trac.macports.org/ticket/41033>.