ttcn3_makefilegen: Generate gnu make files (we use Linux...)

Change-Id: I21de4dd375139ad24c742c12a948f7ba0b0ade76
diff --git a/regen-makefile.sh b/regen-makefile.sh
index 7be47bb..a2aa946 100755
--- a/regen-makefile.sh
+++ b/regen-makefile.sh
@@ -40,7 +40,7 @@
 	USE_CCACHE=1
 fi
 
-ttcn3_makefilegen -p -l -U 5 -f $*
+ttcn3_makefilegen -g -p -l -U 5 -f $*
 
 TITAN_VERSION=$(ttcn3_makefilegen -v 2>&1 |grep "Product number" |cut --delimiter="/" -f 2-| sed -e "s/[A-Z ]//g")