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-rw-r--r--src/cmd/troff/dwbinit.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/cmd/troff/dwbinit.c b/src/cmd/troff/dwbinit.c
index 9c1845b0..064a0b02 100644
--- a/src/cmd/troff/dwbinit.c
+++ b/src/cmd/troff/dwbinit.c
@@ -189,7 +189,8 @@ char *DWBhome(void)
if ( (home = DWBHOME) == NULL || *home == '\0' || *home == ' ' )
home = NULL;
} /* End if */
- home = unsharp(home);
+ if ( home != NULL )
+ home = unsharp(home);
} /* End if */
while (home && *home == '/' && *(home +1) == '/') /* remove extra slashes */