[source] build: include CONFIG_AUTOREMOVE in HOST_STAMP_PREPARED

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/bc73a7fd98b2c2c20cc2a796d625e671ca00eccf

commit bc73a7fd98b2c2c20cc2a796d625e671ca00eccf
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Thu Jan 19 12:37:39 2017 +0100

    build: include CONFIG_AUTOREMOVE in HOST_STAMP_PREPARED
    
    Fixes build issues when changing the CONFIG_AUTOREMOVE setting
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 include/host-build.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/host-build.mk b/include/host-build.mk
index bbf4633..cf12039 100644
--- a/include/host-build.mk
+++ b/include/host-build.mk
@@ -24,7 +24,7 @@ include $(INCLUDE_DIR)/unpack.mk
 include $(INCLUDE_DIR)/depends.mk
 
 BUILD_TYPES += host
-HOST_STAMP_PREPARED=$(HOST_BUILD_DIR)/.prepared$(if $(HOST_QUILT)$(DUMP),,$(shell $(call find_md5,${CURDIR} $(PKG_FILE_DEPENDS),)))
+HOST_STAMP_PREPARED=$(HOST_BUILD_DIR)/.prepared$(if $(HOST_QUILT)$(DUMP),,$(shell $(call find_md5,${CURDIR} $(PKG_FILE_DEPENDS),))_$(call confvar,CONFIG_AUTOREMOVE $(HOST_PREPARED_DEPENDS)))
 HOST_STAMP_CONFIGURED:=$(HOST_BUILD_DIR)/.configured
 HOST_STAMP_BUILT:=$(HOST_BUILD_DIR)/.built
 HOST_BUILD_PREFIX:=$(if $(IS_PACKAGE_BUILD),$(STAGING_DIR_HOSTPKG),$(STAGING_DIR_HOST))