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-rw-r--r--converter/ppm/ximtoppm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/converter/ppm/ximtoppm.c b/converter/ppm/ximtoppm.c
index 96798707..28c9b674 100644
--- a/converter/ppm/ximtoppm.c
+++ b/converter/ppm/ximtoppm.c
@@ -50,6 +50,10 @@ parseCommandLine(int argc, char ** argv,
     OPTENT3(0,   "alphaout",   OPT_STRING, 
             &cmdlineP->alpha_filename, &alphaoutSpec, 0);
 
+    opt.opt_table = option_def;
+    opt.short_allowed = FALSE;  /* We have no short (old-fashioned) options */
+    opt.allowNegNum = FALSE;  /* We have no parms that are negative numbers */
+
     optParseOptions3(&argc, argv, opt, sizeof(opt), 0);
         /* Uses and sets argc, argv, and all of *cmdlineP. */