build: only overwrite ABI version for provided packages when base version changed

Should avoid some spurious rebuilds

Signed-off-by: Felix Fietkau <[email protected]>

include/package-ipkg.mk

@@ -156,12 +156,12 @@ ifeq ($(DUMP),)
 
     $(STAGING_DIR_ROOT)/stamp/.$(1)_installed: $(PKG_BUILD_DIR)/.pkgdir/$(1).installed
 	mkdir -p $(STAGING_DIR_ROOT)/stamp
-	$(if $(ABI_VERSION),echo '$(ABI_VERSION)' | cmp -s - $(PKG_INFO_DIR)/$(1).version || \
-		echo '$(ABI_VERSION)' > $(PKG_INFO_DIR)/$(1).version \
-		$(foreach pkg,$(filter-out $(1),$(PROVIDES)),; \
-			cp $(PKG_INFO_DIR)/$(1).version $(PKG_INFO_DIR)/$(pkg).version \
+	$(if $(ABI_VERSION),echo '$(ABI_VERSION)' | cmp -s - $(PKG_INFO_DIR)/$(1).version || { \
+		echo '$(ABI_VERSION)' > $(PKG_INFO_DIR)/$(1).version; \
+		$(foreach pkg,$(filter-out $(1),$(PROVIDES)), \
+			cp $(PKG_INFO_DIR)/$(1).version $(PKG_INFO_DIR)/$(pkg).version; \
 		) \
-	)
+	} )
 	$(call locked,$(CP) $(PKG_BUILD_DIR)/.pkgdir/$(1)/. $(STAGING_DIR_ROOT)/,root-copy)
 	touch $$@