move command so that it only gets evaluated when the rule is fired

packages/linux_make/Makefile

@@ -22,8 +22,6 @@ endif
 # directory as $(prefix) otherwise Pd won't be able to find extra, doc, etc.
 ifeq ($(PACKAGE_TYPE),deb)
   prefix = /usr
-  # generates the dependencies for all externals and pd itself
-  PACKAGE_DEPENDS := $(shell find $(DESTDIR) \( -name "*.pd_linux" -or -name pd-gui -or -wholename \*bin/pd \) -print0 | xargs -0 dpkg-shlibdeps -O | sed 's|shlibs:Depends=|, |' )
 else
   prefix = /usr/local
 endif
@@ -160,6 +158,9 @@ deb: debstage
 	cp $(packages_src)/linux_make/debian/control $(DESTDIR)/DEBIAN
 	cp $(packages_src)/linux_make/debian/pd-l2ork.postrm $(DESTDIR)/DEBIAN
 	cp $(packages_src)/linux_make/debian/pd-l2ork.postinst $(DESTDIR)/DEBIAN
+# generate the dependencies for all externals and pd itself
+	$(eval PACKAGE_DEPENDS := $(shell find $(DESTDIR) \( -name "*.pd_linux" -or -name pd-gui -or -wholename \*bin/pd \) -print0 | xargs -0 dpkg-shlibdeps -O | sed 's|shlibs:Depends=|, |' ))
+
 # set build architecture and version for the package
 	sed -i 's|^Version:.*|Version: $(DEB_PD_VERSION)|' \
 		$(DESTDIR)/DEBIAN/control
@@ -278,7 +279,7 @@ test_locations:
 	@echo "MANUALSDIR  $(manualsdir)"
 	@echo "EXAMPLESDIR  $(examplesdir)"
 	@echo --------------------------------------------------
-	@echo "PACKAGE_DEPENDS 	$(PACKAGE_DEPENDS)"
+#	@echo "PACKAGE_DEPENDS 	$(PACKAGE_DEPENDS)"
 	@echo --------------------------------------------------
 	autoconf --version
 	@echo --------------------------------------------------