--- crash-8.0.1/Makefile.orig
+++ crash-8.0.1/Makefile
@@ -256,7 +256,7 @@ all: make_configure
 gdb_merge: force
 	@if [ ! -f ${GDB}/README ]; then \
 	  $(MAKE) gdb_unzip; fi
-	@echo "${LDFLAGS} -lz -ldl -rdynamic" > ${GDB}/gdb/mergelibs
+	@echo "${LDFLAGS} -lz -llzo2 -lsnappy -lzstd -ldl -rdynamic" > ${GDB}/gdb/mergelibs
 	@echo "../../${PROGRAM} ../../${PROGRAM}lib.a" > ${GDB}/gdb/mergeobj
 	@rm -f ${PROGRAM}
 	@if [ ! -f ${GDB}/config.status ]; then \
--- crash-8.0.1/diskdump.c.orig
+++ crash-8.0.1/diskdump.c
@@ -23,6 +23,9 @@
  * GNU General Public License for more details.
  */
 
+#define LZO
+#define SNAPPY
+#define ZSTD
 #include "defs.h"
 #include "diskdump.h"
 #include "xen_dom0.h"