diff --git a/Makefile b/Makefile
index e3e42a2..5760f73 100644
--- a/Makefile
+++ b/Makefile
@@ -71,6 +71,13 @@ LIBRARIES := $(LIBRARIES:so=a)
 LDFLAGS += -static
 endif
 
+# Debug build options
+ifdef DEBUG
+FFLAGS += -ggdb -O0 -Wall -Wunused-parameter
+# Tricks to detect uninitialised memory
+FFLAGS += -finit-integer=7777777 -finit-real=snan -ffpe-trap=invalid
+endif
+
 ##
 ## Targets
 ##