diff options
Diffstat (limited to 'm4/double-slash-root.m4')
| -rw-r--r-- | m4/double-slash-root.m4 | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/m4/double-slash-root.m4 b/m4/double-slash-root.m4 index 69d60d0..dfd3921 100644 --- a/m4/double-slash-root.m4 +++ b/m4/double-slash-root.m4 @@ -1,5 +1,5 @@ -# double-slash-root.m4 serial 2 -*- Autoconf -*- -dnl Copyright (C) 2006 Free Software Foundation, Inc. +# double-slash-root.m4 serial 4 -*- Autoconf -*- +dnl Copyright (C) 2006, 2008-2016 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -9,30 +9,30 @@ AC_DEFUN([gl_DOUBLE_SLASH_ROOT], AC_REQUIRE([AC_CANONICAL_HOST]) AC_CACHE_CHECK([whether // is distinct from /], [gl_cv_double_slash_root], [ if test x"$cross_compiling" = xyes ; then - # When cross-compiling, there is no way to tell whether // is special - # short of a list of hosts. However, the only known hosts to date - # that have a distinct // are Apollo DomainOS (too old to port to), - # Cygwin, and z/OS. If anyone knows of another system for which // has - # special semantics and is distinct from /, please report it to - # <bug-gnulib@gnu.org>. - case $host in - *-cygwin | i370-ibm-openedition) - gl_cv_double_slash_root=yes ;; - *) - # Be optimistic and assume that / and // are the same when we - # don't know. - gl_cv_double_slash_root='unknown, assuming no' ;; - esac + # When cross-compiling, there is no way to tell whether // is special + # short of a list of hosts. However, the only known hosts to date + # that have a distinct // are Apollo DomainOS (too old to port to), + # Cygwin, and z/OS. If anyone knows of another system for which // has + # special semantics and is distinct from /, please report it to + # <bug-gnulib@gnu.org>. + case $host in + *-cygwin | i370-ibm-openedition) + gl_cv_double_slash_root=yes ;; + *) + # Be optimistic and assume that / and // are the same when we + # don't know. + gl_cv_double_slash_root='unknown, assuming no' ;; + esac else - set x `ls -di / //` - if test $[2] = $[4] && wc //dev/null >/dev/null 2>&1; then - gl_cv_double_slash_root=no - else - gl_cv_double_slash_root=yes - fi + set x `ls -di / // 2>/dev/null` + if test "$[2]" = "$[4]" && wc //dev/null >/dev/null 2>&1; then + gl_cv_double_slash_root=no + else + gl_cv_double_slash_root=yes + fi fi]) if test "$gl_cv_double_slash_root" = yes; then - AC_DEFINE([DOUBLE_SLASH_IS_DISTINCT_ROOT], 1, + AC_DEFINE([DOUBLE_SLASH_IS_DISTINCT_ROOT], [1], [Define to 1 if // is a file system root distinct from /.]) fi ]) |