X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Fgetcwd.m4;h=2875fe590b15831495048dab25e6e49d0f128bcc;hb=a8a88eddaa90432e6ec1b8d9d5c9842bc91afd1d;hp=50b96c666c3429a514e2b15de36b75886cfa66d9;hpb=dc84183747ce1703eb99685b5dbde1f65a143c06;p=debian%2Fgzip

diff --git a/m4/getcwd.m4 b/m4/getcwd.m4
index 50b96c6..2875fe5 100644
--- a/m4/getcwd.m4
+++ b/m4/getcwd.m4
@@ -1,12 +1,12 @@
 # getcwd.m4 - check for working getcwd that is compatible with glibc
 
-# Copyright (C) 2001, 2003-2007, 2009-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003-2007, 2009-2018 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # Written by Paul Eggert.
-# serial 12
+# serial 15
 
 AC_DEFUN([gl_FUNC_GETCWD_NULL],
   [
@@ -15,6 +15,7 @@ AC_DEFUN([gl_FUNC_GETCWD_NULL],
    AC_CACHE_CHECK([whether getcwd (NULL, 0) allocates memory for result],
      [gl_cv_func_getcwd_null],
      [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#	 include <stdlib.h>
 #        if HAVE_UNISTD_H
 #         include <unistd.h>
 #        else /* on Windows with MSVC */
@@ -36,9 +37,10 @@ AC_DEFUN([gl_FUNC_GETCWD_NULL],
                if (! f)
                  return 2;
                if (f[0] != '/')
-                 return 3;
+                 { free (f); return 3; }
                if (f[1] != '\0')
-                 return 4;
+                 { free (f); return 4; }
+               free (f);
                return 0;
              }
 #endif
@@ -46,12 +48,12 @@ AC_DEFUN([gl_FUNC_GETCWD_NULL],
         [gl_cv_func_getcwd_null=yes],
         [gl_cv_func_getcwd_null=no],
         [[case "$host_os" in
-                     # Guess yes on glibc systems.
-            *-gnu*)  gl_cv_func_getcwd_null="guessing yes";;
-                     # Guess yes on Cygwin.
-            cygwin*) gl_cv_func_getcwd_null="guessing yes";;
-                     # If we don't know, assume the worst.
-            *)       gl_cv_func_getcwd_null="guessing no";;
+                           # Guess yes on glibc systems.
+            *-gnu* | gnu*) gl_cv_func_getcwd_null="guessing yes";;
+                           # Guess yes on Cygwin.
+            cygwin*)       gl_cv_func_getcwd_null="guessing yes";;
+                           # If we don't know, assume the worst.
+            *)             gl_cv_func_getcwd_null="guessing no";;
           esac
         ]])])
 ])
@@ -123,7 +125,7 @@ AC_DEFUN([gl_FUNC_GETCWD],
   dnl Define HAVE_MINIMALLY_WORKING_GETCWD and HAVE_PARTLY_WORKING_GETCWD
   dnl if appropriate.
   case "$gl_cv_func_getcwd_path_max" in
-    "no, it has the AIX bug") ;;
+    "no"|"no, it has the AIX bug") ;;
     *)
       AC_DEFINE([HAVE_MINIMALLY_WORKING_GETCWD], [1],
         [Define to 1 if getcwd minimally works, that is, its result can be
@@ -136,11 +138,16 @@ AC_DEFUN([gl_FUNC_GETCWD],
         [Define to 1 if getcwd works, except it sometimes fails when it
          shouldn't, setting errno to ERANGE, ENAMETOOLONG, or ENOENT.])
       ;;
+    "yes, but with shorter paths")
+      AC_DEFINE([HAVE_GETCWD_SHORTER], [1],
+        [Define to 1 if getcwd works, but with shorter paths
+         than is generally tested with the replacement.])
+      ;;
   esac
 
   if { case "$gl_cv_func_getcwd_null" in *yes) false;; *) true;; esac; } \
      || test $gl_cv_func_getcwd_posix_signature != yes \
-     || test "$gl_cv_func_getcwd_path_max" != yes \
+     || { case "$gl_cv_func_getcwd_path_max" in *yes*) false;; *) true;; esac; } \
      || test $gl_abort_bug = yes; then
     REPLACE_GETCWD=1
   fi