The first cut at fixing Perl extensions written in C++ in AIX,

[p5sagit/p5-mst-13.2.git] / patchlevel.h

diff --git a/patchlevel.h b/patchlevel.h
index 02a9689..56e529c 100644 (file)
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -7,6 +7,19 @@
 #define PERL_VERSION   5               /* epoch */
 #define PERL_SUBVERSION        61              /* generation */
 
+/* Compatibility across versions:  MakeMaker will install add-on
+   modules in a directory with the PERL_APIVERSION version number.  
+   Normally this should not change across maintenance releases.
+   perl.c:incpush() and lib/lib.pm will automatically search older 
+   directories across major versions back to to PERL_XS_APIVERSION
+   for XS modules and back to PERL_PM_APIVERSION for pure PERL modules.
+   (Since the versioned directory layout didn't start until 5.005,
+   that's the earliest these can go back.
+
+   See INSTALL for how this works.
+*/
+#define PERL_APIVERSION 5.00561                /* Adjust manually as needed.  */
+
 #define __PATCHLEVEL_H_INCLUDED__
 #endif