File signed-char.patch of Package netpbm

Index: netpbm-10.96.4/converter/other/pnmtopalm/palmtopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/pnmtopalm/palmtopnm.c
+++ netpbm-10.96.4/converter/other/pnmtopalm/palmtopnm.c
@@ -873,7 +873,7 @@ readPackBitsRow(FILE *          const if
         pm_readcharu(ifP, &incountByte);
         if (incountByte & 0x80) {
             /* How do we handle incount == -128 ? */
-            int const signedIncount = (char)incountByte;
+            int const signedIncount = (signed char)incountByte;
             unsigned int const runlength = -signedIncount + 1;
             unsigned char inval;
             pm_readcharu(ifP, &inval);