--- src/Makefile.generic.orig	2026-02-20 12:38:35 UTC
+++ src/Makefile.generic
@@ -223,15 +223,15 @@ install: all
 
 #TODO: add version and symlink, do not run ldconfig for local install
 install: all
-	install -d $(PREFIX)/include $(PREFIX)/lib
-	install -m0644 $(SIMLIB_HEADERS) $(PREFIX)/include
-	install -m0644 $(LIBNAME).a      $(PREFIX)/lib/lib$(LIBNAME).a
-	install -m0644 $(LIBNAME).so     $(PREFIX)/lib/lib$(LIBNAME).so
+	install -d $(PREFIX)/include $(DESTDIR)/$(PREFIX)/lib
+	install -m0644 $(SIMLIB_HEADERS) $(DESTDIR)/$(PREFIX)/include
+	install -m0644 $(LIBNAME).a      $(DESTDIR)/$(PREFIX)/lib/lib$(LIBNAME).a
+	install -m0644 $(LIBNAME).so     $(DESTDIR)/$(PREFIX)/lib/lib$(LIBNAME).so
 	@if ! grep '^'$(PREFIX)/lib'$$' /etc/ld.so.conf >/dev/null; then \
 	  echo "Please add $(PREFIX)/lib to /etc/ld.so.conf ";  \
 	fi
 	@echo "This should be run as root:"
-	ldconfig # update dynamic linker cache
+	#ldconfig # update dynamic linker cache
 
 #############################################################################
 # Uninstall library
@@ -249,7 +249,7 @@ test: all
 test: all
 	$(CXX) $(CXXFLAGS) -o $(TESTFILE) $(TESTFILE).cc -lm simlib.a
 	./$(TESTFILE) >$(TESTFILE).output
-	sed -i 's/0x[0-9a-f]*/PTR/g' $(TESTFILE).output
+	sed -i '' 's/0x[0-9a-f]*/PTR/g' $(TESTFILE).output
 	@echo `date` "by" `$(CXX) --version|head -n 1` >>TEST-BY.txt
 	@echo
 	-diff -bs $(TESTFILE).output-- $(TESTFILE).output