calc backward compatibility: allow incomplete conditional

modules/libcom/src/calc/postfix.c

@@ -216,6 +216,7 @@ LIBCOM_API long
     int cond_count = 0;
     char * const pdest = pout;
     char *pnext;
+    const char* psrc_orig = psrc;
 
     if (psrc == NULL || *psrc == '\0' ||
         pout == NULL || perror == NULL) {
@@ -470,8 +471,12 @@ LIBCOM_API long
     *pout = END_EXPRESSION;
 
     if (cond_count != 0) {
+        fprintf(stderr, "Deprecated CALC \"%s\": %s\n",
+            psrc_orig, calcErrorStr(CALC_ERR_CONDITIONAL));
+/*
         *perror = CALC_ERR_CONDITIONAL;
         goto bad;
+*/
     }
     if (operand_needed || runtime_depth != 1) {
         *perror = CALC_ERR_INCOMPLETE;