[SCM] GNU Autoconf source repository branch, master, updated. v2.63-243-g44579b8

[Eric Blake]

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- Log -----------------------------------------------------------------
commit 44579b83165eae1c2300e559eae5b697c685c2f7
Author: Eric Blake <address@hidden>
Date:   Thu Dec 18 17:15:13 2008 -0700

    Fix separator in m4_stack_foreach_sep.
    
    * lib/m4sugar/m4sugar.m4 (_m4_stack_reverse): Separate separator
    from prefix.
    * tests/m4sugar.at (m4@&address@hidden): Enhance test.
    
    Signed-off-by: Eric Blake <address@hidden>

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

Summary of changes:
 ChangeLog              |    7 +++++++
 lib/m4sugar/m4sugar.m4 |    2 +-
 tests/m4sugar.at       |    3 ++-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index c1d367a..369433c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2008-12-18  Eric Blake  <address@hidden>
 
+       Fix separator in m4_stack_foreach_sep.
+       * lib/m4sugar/m4sugar.m4 (_m4_stack_reverse): Separate separator
+       from prefix.
+       * tests/m4sugar.at (m4@&address@hidden): Enhance test.
+
+2008-12-18  Eric Blake  <address@hidden>
+
        Mention limitation of M4 1.4.x on builtin tokens.
        * doc/autoconf.texi (Redefined M4 Macros) <m4_dumpdef>: Document
        ramification of M4 1.4.x's inability to pass builtin tokens
diff --git a/lib/m4sugar/m4sugar.m4 b/lib/m4sugar/m4sugar.m4
index fe6af4f..6ca825f 100644
--- a/lib/m4sugar/m4sugar.m4
+++ b/lib/m4sugar/m4sugar.m4
@@ -1293,7 +1293,7 @@ m4_define([m4_stack_foreach_sep_lifo],
 # swapped copy.
 m4_define([_m4_stack_reverse],
 [m4_ifdef([$1], [m4_pushdef([$2],
-  _m4_defn([$1]))$3[]_m4_popdef([$1])$0([$1], [$2], [$4$3])])])
+  _m4_defn([$1]))$3[]_m4_popdef([$1])$0([$1], [$2], [$4[]$3])])])
 
 
 
diff --git a/tests/m4sugar.at b/tests/m4sugar.at
index 8a538f0..a876588 100644
--- a/tests/m4sugar.at
+++ b/tests/m4sugar.at
@@ -60,7 +60,8 @@ m4_copy([abc], [foo])dnl
 m4_stack_foreach([foo], [m4_n])
 m4_stack_foreach_lifo([foo], [m4_n])
 m4_stack_foreach_sep([abc], [ m4_index([abcdefghijkl],], [)])
-m4_stack_foreach_sep_lifo([abc], [<], [>], [:])
+m4_define([colon], [:])dnl
+m4_stack_foreach_sep_lifo([abc], [<], [>], [colon])
 m4_pushdef([xyz], [123])dnl
 m4_pushdef([xyz], [456])dnl
 m4_define([doit], [[$1](m4_stack_foreach_sep([xyz], [m4_dquote(], [)], [,]))


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