diff -Naur astrometry/blind/Makefile astrometry.new/blind/Makefile

--- astrometry/blind/Makefile	2017-11-17 23:41:01.749922420 +0100

+++ astrometry.new/blind/Makefile	2017-11-17 23:44:09.742825751 +0100

@@ -147,7 +147,8 @@

 	$(RANLIB) $@

 $(ENGINE_SO): $(ENGINE_OBJS) $(SLIB)

-	$(CC) $(LDFLAGS) $(SHAREDLIBFLAGS) -o $@ $^ $(LDLIBS)

+	$(CC) $(LDFLAGS) $(SHAREDLIBFLAGS) -Wl,-soname,$@.0 -o $@.0 $^ $(LDLIBS)

+	ln -s  $@.0 $@

 # old and miscellaneous executables that aren't part of the pipeline.

 OLDEXECS := plotquads rawstartree checkquads

@@ -232,8 +233,8 @@

 	done

 	$(MKDIR) '$(LIB_INSTALL_DIR)'

 	@for x in $(INSTALL_LIB); do \

-		echo $(CP) $$x '$(LIB_INSTALL_DIR)'; \

-		$(CP) $$x '$(LIB_INSTALL_DIR)'; \

+		echo $(CP) -d $$x* '$(LIB_INSTALL_DIR)'; \

+		$(CP) -d $$x* '$(LIB_INSTALL_DIR)'; \

 	done

 	$(MKDIR) '$(PY_INSTALL_DIR)'

 	@for x in $(PYTHON_INSTALL); do \