Define NO_HYPHENS_IN_FILENAMES.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/s/vms.h b/src/s/vms.h
index aa4f0991dfe..41c0b7dd098 100644
--- a/src/s/vms.h
+++ b/src/s/vms.h
@@ -109,6 +109,11 @@ Boston, MA 02111-1307, USA.  */
    your system and must be used only through an encapsulation
    (Which you should place, by convention, in sysdep.c).  */
 
+/* In olden days, VMS filenames did not support hyphen (i.e., the "-"
+   character).  You can #undef this in vmsX-Y.h for newer versions.  */
+
+#define NO_HYPHENS_IN_FILENAMES
+
 /* Do you have the sharable library bug?  If you link with a sharable
    library that contains psects with the NOSHR attribute and also refer to
    those psects in your program, the linker give you a private version of
@@ -136,6 +141,7 @@ Boston, MA 02111-1307, USA.  */
 /* #define READ_SYSUAF */
 
 /* Traditionally, filenames on VMS are always upper case.  */
+
 #define FILE_SYSTEM_CASE Fupcase
 
 /* On VMS these have a different name */