diff --git a/bin/jmk b/bin/jmk
index ffd3993..ef6d057 100755
--- a/bin/jmk
+++ b/bin/jmk
@@ -6,8 +6,21 @@
 root="$(dirname $dir)"
 jmkscript="$root/share/jmk/jmk.m4"
 
+disable_gtags=false
+
+while getopts "Gh" arg; do
+    case $arg in
+	G) gen_gtags=false ;;
+	h) echo "Please read the JMK manual for more information." ;;
+	?) echo "Invalid argument"
+	   exit 1 ;;
+    esac
+done
+
 for file in $(find -name Jmk); do
     echo "Processing $file" > /dev/stderr
     outdir="$(dirname $file)"
-    m4 -D jmk_root="$root" -D jmk_build_cmd="$0" -D jmk_build_dir="$(pwd)" "$jmkscript" "$file" > "$outdir/Makefile" || exit 1
+    m4 -D jmk_root="$root" -D jmk_build_cmd="$0" -D jmk_build_dir="$(pwd)" \
+       -D disable_gtags="$disable_gtags" "$jmkscript" "$file" > "$outdir/Makefile" \
+       || exit 2
 done