--- a/Makefile.gnu	2015-03-10 09:04:00.000000000 +0100
+++ b/Makefile.gnu      2023-01-21 15:53:35.782911926 -0600
@@ -5,8 +5,8 @@

 # General configuration variables:
 DESTDIR ?= /
-INCDIR ?= $(DESTDIR)/usr/include
-INSTALLDIR ?= $(DESTDIR)/usr/lib
+INCDIR ?= $(DESTDIR)/include
+INSTALLDIR ?= $(DESTDIR)/lib

 # Converts cr/lf to just lf
 DOS2UNIX = dos2unix
@@ -71,9 +71,9 @@
 
 install:
 	install -d $(INCDIR) $(INSTALLDIR)
-	install -m 644 -o root -g root $(HEADER) $(INCDIR)
-	install -m 644 -o root -g root $(STATICLIB) $(INSTALLDIR)
-	install -m 755 -o root -g root $(SHAREDLIB) $(INSTALLDIR)
+	install -m 644 $(HEADER) $(INCDIR)
+	install -m 644 $(STATICLIB) $(INSTALLDIR)
+	install -m 755 $(SHAREDLIB) $(INSTALLDIR)
 	ln -sf $(SHAREDLIB) $(INSTALLDIR)/$(VERLIBNAME)
 	ln -sf $(VERLIBNAME) $(INSTALLDIR)/$(LIBNAME)	
 #	ldconfig