--- makefile.orig	2021-05-21 23:54:11 UTC
+++ makefile
@@ -194,7 +194,7 @@ SHLIBBIN=lrs-shared lrsnash-shared
 # Building (linking) the shared library, and relevant symlinks.
 
 ${SHLIB}: ${SHLIBOBJ}
-	$(CC) -shared -Wl,-soname=$(SONAME) $(SHLIBFLAGS) -o $@ ${SHLIBOBJ} -lgmp
+	$(CC) -shared -Wl,-soname=$(SONAME) $(SHLIBFLAGS) -o $@ ${SHLIBOBJ} $(LDFLAGS) -lgmp
 
 ${SONAME}: ${SHLIB}
 	ln -sf ${SHLIB} ${SONAME}
@@ -207,11 +207,11 @@ ${SHLINK}: ${SONAME}
 all-shared: ${SHLIBBIN}
 
 lrs-shared: ${SHLINK} lrs.o
-	$(CC) lrs.o -o $@ -L . -llrs
+	$(CC) lrs.o -o $@ -L . $(LDFLAGS) -llrs
 
 
 lrsnash-shared: ${SHLINK}  lrsnash.c
-	$(CC) -DGMP -DMA lrsnash.c  lrsnashlib.c -I${INCLUDEDIR} -o $@ -L . -llrs -lgmp
+	$(CC) -DGMP -DMA lrsnash.c  lrsnashlib.c -I${INCLUDEDIR} -o $@ -L . -llrs $(LDFLAGS) -lgmp
 
 # build object files for the shared library
 
@@ -240,19 +240,19 @@ lrslib2-shr.o: lrslib.c lrslib.h
 # install targets
 # where to install binaries, libraries, include files
 prefix ?= /usr/local
-INSTALL_INCLUDES=lrslib.h lrsdriver.h lrsgmp.h lrslong.h lrsmp.h
+INSTALL_INCLUDES=lrslib.h lrsdriver.h lrsgmp.h lrslong.h lrsmp.h lrsnashlib.h lrsrestart.h mplrs.h
 
 install: all-shared install-common
 	mkdir -p $(DESTDIR)${prefix}/bin
 	for file in ${SHLIBBIN}; do cp $${file} $(DESTDIR)${prefix}/bin/$$(basename $$file -shared); done
 	mkdir -p $(DESTDIR)${prefix}/lib
-	install -t $(DESTDIR)${prefix}/lib $(SHLIB)
+	install $(SHLIB) $(DESTDIR)${prefix}/lib
 	cd $(DESTDIR)${prefix}/lib && ln -sf $(SHLIB) $(SHLINK)
 	cd $(DESTDIR)${prefix}/lib && ln -sf $(SHLIB) $(SONAME)
 
 install-common:
 	mkdir -p $(DESTDIR)${prefix}/include/lrslib
-	install -t $(DESTDIR)${prefix}/include/lrslib ${INSTALL_INCLUDES}
+	install ${INSTALL_INCLUDES} $(DESTDIR)${prefix}/include/lrslib
 
 ######################################################################
 clean: