patch-plot_Makefile

--- plot/Makefile.orig	2020-07-16 20:26:35 UTC
+++ plot/Makefile
@@ -119,23 +119,24 @@ install:
 PYTHON_EXTRA_INSTALL := plotstuff.py plotstuff_c.py _plotstuff_c$(PYTHON_SO_EXT)
 
 install-extra: $(INSTALL_CAIRO_EXECS)
-	@echo Installing in directory '$(INSTALL_DIR)'
+	@echo Installing executables in directory '$(INSTALL_DIR)'
 	$(MKDIR) '$(INSTALL_DIR)/bin'
 	@for x in $(INSTALL_CAIRO_EXECS); do \
-		echo $(CP) $$x '$(INSTALL_DIR)/bin'; \
-		$(CP) $$x '$(INSTALL_DIR)/bin'; \
+		echo $(BSD_INSTALL_PROGRAM) $$x '$(INSTALL_DIR)/bin'; \
+		$(BSD_INSTALL_PROGRAM) $$x '$(INSTALL_DIR)/bin'; \
 	done
 	$(MKDIR) '$(INCLUDE_INSTALL_DIR)'
 	@for x in $(PLOT_INSTALL_H); do \
 		echo $(CP) '$(INCLUDE_DIR)/'$$x '$(INCLUDE_INSTALL_DIR)'; \
 		$(CP) '$(INCLUDE_DIR)/'$$x '$(INCLUDE_INSTALL_DIR)'; \
 	done
-	$(MAKE) $(PYTHON_EXTRA_INSTALL)
+	$(MAKE) $(PYTHON_EXTRA_INSTALL) _plotstuff_c$(PYTHON_SO_EXT)
 	$(MKDIR) '$(PY_INSTALL_DIR)'
 	@for x in $(PYTHON_EXTRA_INSTALL); do \
 		echo $(CP) $$x '$(PY_INSTALL_DIR)/'$$x; \
 		$(CP) $$x '$(PY_INSTALL_DIR)/'$$x; \
 	done
+	$(BSD_INSTALL_LIB) _plotstuff_c$(PYTHON_SO_EXT) '$(PY_INSTALL_DIR)'
 
 $(COMMON)/cairoutils.o:
 	$(MAKE) -C $(COMMON) cairoutils.o