Updates for version 0.4.2

New feature: Ability to edit disk images.
Several small bug fixes and feature enhancements (see CHANGELOG).
diff --git a/Makefile b/Makefile
index a6eec4f..f9467ed 100644
--- a/Makefile
+++ b/Makefile
@@ -2,8 +2,8 @@
 CXX=g++
 #CFLAGS=-O2 -fpack-struct
 CFLAGS=-O2 -fpack-struct -D_FILE_OFFSET_BITS=64 -g
-CXXFLAGS=-O2 -fpack-struct -D_FILE_OFFSET_BITS=64 -g
-LIB_NAMES=support crc32 gptpart mbr gpt bsd parttypes attributes
+CXXFLAGS=-O2 -fpack-struct -Wuninitialized -Wreturn-type -D_FILE_OFFSET_BITS=64 -g
+LIB_NAMES=crc32 support gptpart mbr gpt bsd parttypes attributes
 LIB_SRCS=$(NAMES:=.cc)
 LIB_OBJS=$(LIB_NAMES:=.o)
 LIB_HEADERS=$(LIB_NAMES:=.h)