diff --git a/Makefile b/Makefile
index 0b5131a..52959ea 100644
--- a/Makefile
+++ b/Makefile
@@ -125,7 +125,7 @@ ifndef SEMISTATIC
 LDFLAGS += -static
 endif
 else
-LDFLAGS += -Wl,-rpath='$$ORIGIN/../lib/'
+LDFLAGS += -Wl,-rpath,'$$ORIGIN/../lib/'
 endif
 
 # Debug build options
@@ -162,21 +162,21 @@ tests.%: $(GRAY)
 .PHONY: install-bin
 install-bin: $(BINARIES) $(LIBRARIES)
 	mkdir -p $(PREFIX)/{bin,lib}
-	install -m555 -t $(PREFIX)/bin $(BINARIES)
-	cp -fr -t $(PREFIX)/lib $(LIBRARIES)
+	install -m755 $(BINARIES)  $(PREFIX)/bin
+	install -m755 $(LIBRARIES) $(PREFIX)/lib
 
 .PHONY: install-python
 install-python: scripts/gray
-	mkdir -p $(PYTHON_PREFIX)
-	cp -fr -t $(PYTHON_PREFIX) $^
+	mkdir -p $(PYTHON_PREFIX)/gray
+	install -m644 $^/*.py $(PYTHON_PREFIX)/gray
 
 .PHONY: install-doc
 install-doc: $(SHAREDIR)/doc $(MANPAGES)
 	mkdir -p $(PREFIX)/share/{doc/res,man/man{1,5}}
-	install -m644 -t $(PREFIX)/share/doc $(SHAREDIR)/doc/manual.*
-	install -m644 -t $(PREFIX)/share/doc/res $(SHAREDIR)/doc/res/*
-	install -m644 -t $(PREFIX)/share/man/man1 $(SHAREDIR)/*.1
-	install -m644 -t $(PREFIX)/share/man/man5 $(SHAREDIR)/*.5
+	install -m644 $(SHAREDIR)/doc/manual.* $(PREFIX)/share/doc
+	install -m644 $(SHAREDIR)/doc/res/*    $(PREFIX)/share/doc/res
+	install -m644 $(SHAREDIR)/*.1          $(PREFIX)/share/man/man1
+	install -m644 $(SHAREDIR)/*.5          $(PREFIX)/share/man/man5
 
 .PHONY: install
 install: install-bin install-python install-doc