[source] build: write ABI_VERSION file when staging the package

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/8aa93dafc86d804a396fca42e5d7ecdffb53852d

commit 8aa93dafc86d804a396fca42e5d7ecdffb53852d
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Jan 18 15:28:36 2017 +0100

    build: write ABI_VERSION file when staging the package
    
    The make target does not rewrite the file if the contents didn't
    change. This causes make to always consider the target old.
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 include/package-ipkg.mk | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/include/package-ipkg.mk b/include/package-ipkg.mk
index 8727b4e..c56aeaa 100644
--- a/include/package-ipkg.mk
+++ b/include/package-ipkg.mk
@@ -107,9 +107,6 @@ ifeq ($(DUMP),)
       ifneq ($(CONFIG_PACKAGE_$(1))$(DEVELOPER),)
         IPKGS += $(1)
         .compile: $$(IPKG_$(1)) $(PKG_INFO_DIR)/$(1).provides $(STAGING_DIR_ROOT)/stamp/.$(1)_installed
-        ifneq ($(ABI_VERSION),)
-        .compile: $(PKG_INFO_DIR)/$(1).version
-        endif
       else
         $(if $(CONFIG_PACKAGE_$(1)),$$(info WARNING: skipping $(1) -- package not selected))
       endif
@@ -144,16 +141,13 @@ ifeq ($(DUMP),)
     $(STAGING_DIR_ROOT)/stamp/.$(1)_installed: $(STAMP_BUILT)
 	rm -rf $(STAGING_DIR_ROOT)/tmp-$(1)
 	mkdir -p $(STAGING_DIR_ROOT)/stamp $(STAGING_DIR_ROOT)/tmp-$(1)
+	$(if $(ABI_VERSION),echo '$(ABI_VERSION)' | cmp -s - $$@ || echo '$(ABI_VERSION)' > $$@)
 	$(call Package/$(1)/install,$(STAGING_DIR_ROOT)/tmp-$(1))
 	$(call Package/$(1)/install_lib,$(STAGING_DIR_ROOT)/tmp-$(1))
 	$(call locked,$(CP) $(STAGING_DIR_ROOT)/tmp-$(1)/. $(STAGING_DIR_ROOT)/,root-copy)
 	rm -rf $(STAGING_DIR_ROOT)/tmp-$(1)
 	touch $$@
 
-    $(PKG_INFO_DIR)/$(1).version: $$(IPKG_$(1))
-	echo '$(ABI_VERSION)' | cmp -s - $$@ || \
-		echo '$(ABI_VERSION)' > $$@
-
     Package/$(1)/DEPENDS := $$(call mergelist,$$(filter-out @%,$$(IDEPEND_$(1))))
     ifneq ($$(EXTRA_DEPENDS),)
       Package/$(1)/DEPENDS := $$(EXTRA_DEPENDS)$$(if $$(Package/$(1)/DEPENDS),$$(comma) $$(Package/$(1)/DEPENDS))