--- Makefile.orig	2020-11-10 03:29:50 UTC
+++ Makefile
@@ -48,7 +48,7 @@ cc-option = $(shell if $(CC) $(1) -c -x c /dev/null -o
 	      1>&2 2>/dev/null; then echo $(1); fi)
 
 override CFLAGS :=							\
-	-O2 -fomit-frame-pointer -std=c99 -I. -Wall -Wundef		\
+	-std=c99 -I. -Wall -Wundef					\
 	$(call cc-option,-Wpedantic)					\
 	$(call cc-option,-Wdeclaration-after-statement)			\
 	$(call cc-option,-Wmissing-prototypes)				\
@@ -305,9 +305,9 @@ all:$(DEFAULT_TARGETS)
 install:all
 	install -d $(DESTDIR)$(LIBDIR) $(DESTDIR)$(INCDIR) $(DESTDIR)$(BINDIR)
 	install -m644 $(STATIC_LIB) $(DESTDIR)$(LIBDIR)
-	install -m755 $(SHARED_LIB) $(DESTDIR)$(LIBDIR)
+	install -s -m755 $(SHARED_LIB) $(DESTDIR)$(LIBDIR)
 	install -m644 libdeflate.h $(DESTDIR)$(INCDIR)
-	install -m755 gzip$(PROG_SUFFIX) \
+	install -s -m755 gzip$(PROG_SUFFIX) \
 		$(DESTDIR)$(BINDIR)/libdeflate-gzip$(PROG_SUFFIX)
 	ln -f $(DESTDIR)$(BINDIR)/libdeflate-gzip$(PROG_SUFFIX)		\
 	      $(DESTDIR)$(BINDIR)/libdeflate-gunzip$(PROG_SUFFIX)