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-rw-r--r--bcc/const.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/bcc/const.h b/bcc/const.h
index 8df8bcb..fda6914 100644
--- a/bcc/const.h
+++ b/bcc/const.h
@@ -28,6 +28,10 @@
/*#define SOS_MSDOS*/ /* source O/S is MSDOS */
/*#define TOS_EDOS*/ /* target O/S is EDOS */
+#ifdef MSDOS
+#define SOS_MSDOS
+#endif
+
/* switches for source machine dependencies */
#ifndef SOS_EDOS