Changes to m4/ChangeLog,v [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      07/10/09 16:51:10

Index: ChangeLog
===================================================================
RCS file: /sources/m4/m4/ChangeLog,v
retrieving revision 1.1.1.1.2.292
retrieving revision 1.1.1.1.2.293
diff -u -b -r1.1.1.1.2.292 -r1.1.1.1.2.293
--- ChangeLog   2 Oct 2007 22:07:22 -0000       1.1.1.1.2.292
+++ ChangeLog   9 Oct 2007 16:51:09 -0000       1.1.1.1.2.293
@@ -1,3 +1,15 @@
+2007-10-09  Eric Blake  <address@hidden>
+
+       Cache regex compilation for another autoconf speedup.
+       * src/m4.h (free_macro_sequence): Rename...
+       (free_regex): ...to this.
+       * src/m4.c (main): Update caller.
+       * src/builtin.c (REGEX_CACHE_SIZE, m4_regex, regex_cache): New
+       declarations.
+       (compile_pattern): New function; cache recent regexes.
+       (free_regex): Rename, and clean up additional memory.
+       (m4_regexp, m4_patsubst): Use new function.
+
 2007-10-02  Eric Blake  <address@hidden>
 
        Document quoting pitfalls in capitalize.
@@ -3893,7 +3905,7 @@
 
        -----
 
-       $Revision: 1.1.1.1.2.292 $ $Date: 2007/10/02 22:07:22 $
+       $Revision: 1.1.1.1.2.293 $ $Date: 2007/10/09 16:51:09 $
 
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        coding: utf-8