altosdroid: Only update BuildInfo.java when other source files change

Signed-off-by: Mike Beattie <mike@ethernal.org>

diff --git a/altosdroid/Makefile.am b/altosdroid/Makefile.am
index 39f3c2b6a48439d82a08811c012ea778fa2f99d8..7716b49bacd9a8c23b272fed7aa241fe3679a2a9 100644 (file)
--- a/altosdroid/Makefile.am
+++ b/altosdroid/Makefile.am
@@ -39,7 +39,7 @@ $(ALTOSLIB): $(ALTOSLIB_SRCDIR)/$(ALTOSLIB_JAR)
        mkdir -p $(EXT_LIBDIR)
        cd $(EXT_LIBDIR) && ln -s $(shell echo $(EXT_LIBDIR) | sed 's|[^/]\+|..|g')/$(ALTOSLIB_SRCDIR)/$(ALTOSLIB_JAR) .
 
-$(SRC_DIR)/BuildInfo.java:
+$(SRC_DIR)/BuildInfo.java: $(SRC)
        ./buildinfo.sh
 
 if ANDROID
@@ -71,4 +71,3 @@ clean: clean-local
 clean-local:
        rm -rf $(EXT_LIBDIR)
 
-.PHONY: $(SRC_DIR)/BuildInfo.java