--- Makefile.orig	2020-03-24 10:54:06 UTC
+++ Makefile
@@ -54,7 +54,7 @@ CPPFLAGS_BENCH = $(CPPFLAGS_FAST)
 
 CFLAGS += -Wall -Wextra -Werror
 CFLAGS_DEBUG = $(CFLAGS) -O0 -g $(CFLAGS_DEBUG_EXTRA)
-CFLAGS_FAST = $(CFLAGS) -O3 $(CFLAGS_FAST_EXTRA)
+CFLAGS_FAST = $(CFLAGS) $(CFLAGS_FAST_EXTRA)
 CFLAGS_BENCH = $(CFLAGS_FAST) -Wno-unused-parameter
 CFLAGS_LIB = $(CFLAGS_FAST) -fPIC
 
@@ -131,14 +131,14 @@ tags: http_parser.c http_parser.h test.c
 	ctags $^
 
 install: library
-	$(INSTALL) -D  http_parser.h $(DESTDIR)$(INCLUDEDIR)/http_parser.h
-	$(INSTALL) -D $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBNAME)
+	$(INSTALL) http_parser.h $(DESTDIR)$(INCLUDEDIR)/http_parser.h
+	$(INSTALL) $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBNAME)
 	ln -sf $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(SONAME)
 	ln -sf $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(SOLIBNAME).$(SOEXT)
 
 install-strip: library
-	$(INSTALL) -D  http_parser.h $(DESTDIR)$(INCLUDEDIR)/http_parser.h
-	$(INSTALL) -D -s $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBNAME)
+	$(INSTALL) http_parser.h $(DESTDIR)$(INCLUDEDIR)
+	$(INSTALL) $(STRIP) $(LIBNAME) $(DESTDIR)$(LIBDIR)
 	ln -sf $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(SONAME)
 	ln -sf $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(SOLIBNAME).$(SOEXT)