patch 8.1.0420: generating vim.lib when using ActivePerl 5.20.3 or later
Problem: Generating vim.lib when using ActivePerl 5.20.3 or later.
Solution: Redefine XS_EXTERNAL(). (Ken Takata, closes #3462)
diff --git a/src/if_perl.xs b/src/if_perl.xs
index 9fd2196..627f437 100644
--- a/src/if_perl.xs
+++ b/src/if_perl.xs
@@ -88,10 +88,8 @@
# endif
#endif
-/* Perl compatibility stuff. This should ensure compatibility with older
- * versions of Perl.
- */
-
+// Perl compatibility stuff. This should ensure compatibility with older
+// versions of Perl.
#ifndef PERL_VERSION
# include <patchlevel.h>
# define PERL_REVISION 5
@@ -99,6 +97,14 @@
# define PERL_SUBVERSION SUBVERSION
#endif
+
+// Work around for ActivePerl 5.20.3+: Avoid generating (g)vim.lib.
+#if defined(ACTIVEPERL_VERSION) && (ACTIVEPERL_VERSION >= 2003) \
+ && defined(WIN32) && defined(USE_DYNAMIC_LOADING)
+# undef XS_EXTERNAL
+# define XS_EXTERNAL(name) XSPROTO(name)
+#endif
+
/*
* Quoting Jan Dubois of Active State:
* ActivePerl build 822 still identifies itself as 5.8.8 but already