build: reset ALTERNATIVES field in Package/Default

Otherwise ipkg packages may wrongly take on alternatives specs of
another package sharing the same package Makefile

Fixes FS#753

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

diff --git a/include/package-defaults.mk b/include/package-defaults.mk
index 6672b67b53c2c575fadf01b76e5e802939f14d12..0eecd6c4f81ec121452c69833f8051f21387c75e 100644 (file)
--- a/include/package-defaults.mk
+++ b/include/package-defaults.mk
@@ -56,6 +56,7 @@ define Package/Default
   VARIANT:=
   DEFAULT_VARIANT:=
   USERID:=
+  ALTERNATIVES:=
 endef
 
 Build/Patch:=$(Build/Patch/Default)