[SCM] GNU Autoconf source repository branch, master, updated. v2.63-32-g523ee0e

[Eric Blake]

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- Log -----------------------------------------------------------------
commit 523ee0e116b772dfc7293212e2481db10042babe
Author: Eric Blake <address@hidden>
Date:   Fri Oct 10 08:40:09 2008 -0600

    Fix _AS_MKDIR_P usage.
    
    * lib/m4sugar/m4sh.m4 (_AS_MKDIR_P): Correct documentation to
    match implementation.
    (_AS_PREPARE, _AS_MKDIR_P_PREPARE): Adjust callers.
    * doc/autoconf.texi (Programming in M4sh) <AS_MKDIR_P>: Tweak
    wording to better match behavior.
    
    Signed-off-by: Eric Blake <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog           |   10 ++++++++++
 doc/autoconf.texi   |    5 +++--
 lib/m4sugar/m4sh.m4 |   12 +++++++-----
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 2ead8c6..2ab0394 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,16 @@
+2008-10-10  Eric Blake  <address@hidden>
+
+       Fix _AS_MKDIR_P usage.
+       * lib/m4sugar/m4sh.m4 (_AS_MKDIR_P): Correct documentation to
+       match implementation.
+       (_AS_PREPARE, _AS_MKDIR_P_PREPARE): Adjust callers.
+       * doc/autoconf.texi (Programming in M4sh) <AS_MKDIR_P>: Tweak
+       wording to better match behavior.
+
 2008-10-10  Paolo Bonzini  <address@hidden>
 
        * doc/autoconf.texi: Be less wary of shell functions.
+       * NEWS: Document the increased use of shell functions.
 
 2008-10-10  Paolo Bonzini  <address@hidden>
 
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 2ea542c..e1afada 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -11872,9 +11872,10 @@ script.  Finally, it changes the current diversion to 
@code{BODY}.
 @defmac AS_MKDIR_P (@var{file-name})
 @asindex{MKDIR_P}
 Make the directory @var{file-name}, including intervening directories
-as necessary.  This is equivalent to @samp{mkdir -p @var{file-name}},
+as necessary.  This is equivalent to @samp{mkdir -p -- @var{file-name}},
 except that it is portable to older versions of @command{mkdir} that
-lack support for the @option{-p} option.  Also, @code{AS_MKDIR_P}
+lack support for the @option{-p} option or for the @option{--}
+delimiter.  Also, @code{AS_MKDIR_P}
 succeeds if @var{file-name} is a symbolic link to an existing directory,
 even though Posix is unclear whether @samp{mkdir -p} should
 succeed in that case.  If creation of @var{file-name} fails, exit the
diff --git a/lib/m4sugar/m4sh.m4 b/lib/m4sugar/m4sh.m4
index c0a1e30..369d27a 100644
--- a/lib/m4sugar/m4sh.m4
+++ b/lib/m4sugar/m4sh.m4
@@ -257,7 +257,7 @@ fi
 # important not to forget some: config.status needs them.
 m4_defun([_AS_PREPARE],
 [as_func_mkdir_p() {
-  _AS_MKDIR_P([$[]1])
+  _AS_MKDIR_P
 }
 
 _AS_EXPR_PREPARE
@@ -1033,9 +1033,11 @@ $as_ln_s $1 $2
 ])
 
 
-# _AS_MKDIR_P(DIR)
-# ----------------
-# Emulate `mkdir -p` with plain `mkdir'.
+# _AS_MKDIR_P
+# -----------
+# Emit code that can be used to emulate `mkdir -p` with plain `mkdir';
+# the code assumes that "$as_dir" contains the directory to create.
+# $as_dir is normalized, so there is no need to worry about using --.
 m4_define([_AS_MKDIR_P],
 [case $as_dir in #(
   -*) as_dir=./$as_dir;;
@@ -1067,7 +1069,7 @@ as_dir=$1; as_func_mkdir_p])# AS_MKDIR_P
 # -------------------
 m4_defun([_AS_MKDIR_P_PREPARE],
 [AS_REQUIRE_SHELL_FN([as_func_mkdir_p], [
-  _AS_MKDIR_P([$[]1])
+  _AS_MKDIR_P
 ])
 if mkdir -p . 2>/dev/null; then
   as_mkdir_p='mkdir -p "$as_dir"'


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