--- crash-7.3.1/Makefile.orig

+++ crash-7.3.1/Makefile

@@ -230,7 +230,7 @@ all: make_configure

 gdb_merge: force

 	@if [ ! -f ${GDB}/README ]; then \

 	  make --no-print-directory 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-7.3.1/diskdump.c.orig

+++ crash-7.3.1/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"