Add Configure probes for nl_langinfo() and <langinfo.h>.

Expected not to exist in non-UNIX excepting in VMS, where
according to a quick web survey they just might.

p4raw-id: //depot/perl@11003

1 files changed, 2 insertions, 0 deletions

diff --git a/perl.h b/perl.h
index 705df97949..27393f669e 100644
--- a/perl.h
+++ b/perl.h
@@ -3841,6 +3841,8 @@ extern void moncontrol(int);
 
    USE_REENTRANT_API
 
+   HAS_NL_LANGINFO
+
    so that Configure picks them up. */
 
 #endif /* Include guard */