--- Makefile.orig	2017-09-18 12:00:07 UTC
+++ Makefile
@@ -2,7 +2,7 @@ NAME    := xdo
 VERCMD  ?= git describe 2> /dev/null
 VERSION := $(shell $(VERCMD) || cat VERSION)
 
-CPPFLAGS += -D_POSIX_C_SOURCE=200809L -DVERSION=\"$(VERSION)\"
+CPPFLAGS += -DVERSION=\"$(VERSION)\"
 CFLAGS   += -std=c99 -pedantic -Wall -Wextra
 LDLIBS   := -lxcb -lxcb-util -lxcb-icccm -lxcb-ewmh -lxcb-xtest
 
@@ -26,9 +26,9 @@ $(NAME): $(OBJ)
 
 install:
 	mkdir -p "$(DESTDIR)$(BINPREFIX)"
-	cp -p $(NAME) "$(DESTDIR)$(BINPREFIX)"
-	mkdir -p "$(DESTDIR)$(MANPREFIX)/man1"
-	cp -p doc/$(NAME).1 "$(DESTDIR)$(MANPREFIX)/man1"
+	$(BSD_INSTALL_PROGRAM) $(NAME) "$(DESTDIR)$(BINPREFIX)"
+	mkdir -p "$(DESTDIR)$(MANPREFIX)/man/man1"
+	$(BSD_INSTALL_MAN) doc/$(NAME).1 "$(DESTDIR)$(MANPREFIX)/man/man1"
 
 uninstall:
 	rm -f "$(DESTDIR)$(BINPREFIX)/$(NAME)"