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-rw-r--r--Src/zsh.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/Src/zsh.h b/Src/zsh.h
index 36fddd000..87e6a9868 100644
--- a/Src/zsh.h
+++ b/Src/zsh.h
@@ -1792,6 +1792,7 @@ struct tieddata {
 #define PM_ZSHSTORED	(1<<18) /* function stored in zsh form              */
 
 /* Remaining flags do not correspond directly to command line arguments */
+#define PM_SINGLE       (1<<20) /* special can only have a single instance  */
 #define PM_LOCAL	(1<<21) /* this parameter will be made local        */
 #define PM_SPECIAL	(1<<22) /* special builtin parameter                */
 #define PM_DONTIMPORT	(1<<23)	/* do not import this variable              */