Attempt to fix problems with new exception handling macros.

p4raw-id: //depot/perl@23925

1 files changed, 9 insertions, 4 deletions

diff --git a/pod/perlguts.pod b/pod/perlguts.pod
index 7f23169011..d95d3e4c03 100644
--- a/pod/perlguts.pod
+++ b/pod/perlguts.pod
@@ -2262,10 +2262,15 @@ and
 
 =head2 Exception Handling
 
-There are a couple of macros to do very basic exception handling in
-XS modules. You can use these macros if you call code that may croak,
-but you need to do some cleanup before giving control back to Perl.
-For example:
+There are a couple of macros to do very basic exception handling in XS
+modules. You have to define C<NO_XSLOCKS> before including F<XSUB.h> to
+be able to use these macros:
+
+        #define NO_XSLOCKS
+        #include "XSUB.h"
+
+You can use these macros if you call code that may croak, but you need
+to do some cleanup before giving control back to Perl. For example:
 
         dXCPT;    /* set up neccessary variables */