diff --git a/contrib/pdfmark/pdfroff.sh b/contrib/pdfmark/pdfroff.sh
index 4179918c..00b7fec8 100644
--- a/contrib/pdfmark/pdfroff.sh
+++ b/contrib/pdfmark/pdfroff.sh
@@ -531,7 +531,14 @@
 #   filtering them into the reference dictionary; discard incomplete 'groff' output
 #   at this stage.
 #
+    echo >/dev/tty $STREAM $GROFF_STYLE -Z 1\>$NULLDEV 2\>$WRKFILE $REFCOPY $INPUT_FILES
     eval $STREAM $GROFF_STYLE -Z 1>$NULLDEV 2>$WRKFILE $REFCOPY $INPUT_FILES
+    STATUS=$?
+    if test $STATUS -ne 0
+    then
+      echo >/dev/tty PROBLEM: press CTRL+Z and inspect temporary files
+      sleep 600
+    fi
     $AWK '/^gropdf-info:href/ {$1 = ".pdfhref D -N"; print}' $WRKFILE > $REFFILE
   done
   $SAY >&2 " done"
diff --git a/src/roff/troff/node.cpp b/src/roff/troff/node.cpp
index c93d8bc6..6393af57 100644
--- a/src/roff/troff/node.cpp
+++ b/src/roff/troff/node.cpp
@@ -4090,9 +4090,11 @@ void suppress_node::tprint(troff_output_file *out)
   else {
     // Now check whether the suppress node requires us to issue limits.
     if (emit_limits) {
-      if ((0 == image_filename) || (strlen(image_filename) == 0))
+      if ((0 == image_filename) || (strlen(image_filename) == 0)) {
 	error("cannot emit suppresion node placement information"
 	      " without a (saved) filename; skipping");
+	abort();
+      }
       else {
       const size_t namebuflen = 8192;
       char name[namebuflen] = { '\0' };