--- Makefile
+++ Makefile
@@ -8,16 +8,16 @@
 all: $(TARGET) $(APM_CHECK)
 
 $(TARGET): obj/xbattbar.o
-	gcc -o $@ $< -lX11
+	$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $< -lX11
 
 obj/xbattbar.o: xbattbar.c obj/stamp
-	gcc -MMD -o $@ -c $<
+	$(CC) $(CFLAGS) -MMD -o $@ -c $<
 
 $(APM_CHECK): obj/xbattbar-check-apm.o
-	gcc -o $@ $<
+	$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $<
 
 obj/xbattbar-check-apm.o: xbattbar-check-apm.c obj/stamp
-	gcc -MMD -D$(OS_TYPE) -o $@ -c $<
+	$(CC) $(CFLAGS) -MMD -D$(OS_TYPE) -o $@ -c $<
 
 obj/stamp:
 	mkdir obj
@@ -29,11 +29,11 @@
 
 
 install: $(TARGET) $(APM_CHECK)
-	install -d -m 0755 $(DESTDIR)/usr/lib/$(PROJECT)
+	install -d -m 0755 $(DESTDIR)/usr/lib$(LIB_SUFFIX)/$(PROJECT)
 	install -d -m 0755 $(DESTDIR)/usr/bin
 	install -d -m 0755 $(DESTDIR)/usr/share/man/man1
-	install -m 0755 $(APM_CHECK) $(DESTDIR)/usr/lib/$(PROJECT)/
-	install -m 0755 xbattbar-check-acpi $(DESTDIR)/usr/lib/$(PROJECT)/
+	install -m 0755 $(APM_CHECK) $(DESTDIR)/usr/lib$(LIB_SUFFIX)/$(PROJECT)/
+	install -m 0755 xbattbar-check-acpi $(DESTDIR)/usr/lib$(LIB_SUFFIX)/$(PROJECT)/
 	install -m 0755 $(TARGET) $(DESTDIR)/usr/bin/
 	install -m 0644 xbattbar.man $(DESTDIR)/usr/share/man/man1/$(PROJECT).1