|  | OE needs to be able to change the default compiler. If we pass in HOSTCC | 
|  | through the make command, it overwrites not only this setting but also the | 
|  | setting in tools/Makefile wrapped in ifneq ($(CROSS_BUILD_TOOLS),) which | 
|  | breaks the build. | 
|  |  | 
|  | We therefore use override to ensure the value of HOSTCC is overwritten when | 
|  | needed. | 
|  |  | 
|  | RP: Updated the patch to the version being submitted to upstream u-boot | 
|  |  | 
|  | Upstream-Status: Submitted [emailed to Masahiro Yamada for discussion] | 
|  | RP 2017/3/11 | 
|  |  | 
|  | Index: git/tools/Makefile | 
|  | =================================================================== | 
|  | --- git.orig/tools/Makefile | 
|  | +++ git/tools/Makefile | 
|  | @@ -262,7 +262,7 @@ $(LICENSE_H): $(obj)/bin2header $(srctre | 
|  | subdir- += env | 
|  |  | 
|  | ifneq ($(CROSS_BUILD_TOOLS),) | 
|  | -HOSTCC = $(CC) | 
|  | +override HOSTCC = $(CC) | 
|  |  | 
|  | quiet_cmd_crosstools_strip = STRIP   $^ | 
|  | cmd_crosstools_strip = $(STRIP) $^; touch $@ | 
|  | Index: git/tools/env/Makefile | 
|  | =================================================================== | 
|  | --- git.orig/tools/env/Makefile | 
|  | +++ git/tools/env/Makefile | 
|  | @@ -8,7 +8,7 @@ | 
|  | # fw_printenv is supposed to run on the target system, which means it should be | 
|  | # built with cross tools. Although it may look weird, we only replace "HOSTCC" | 
|  | # with "CC" here for the maximum code reuse of scripts/Makefile.host. | 
|  | -HOSTCC = $(CC) | 
|  | +override HOSTCC = $(CC) | 
|  |  | 
|  | # Compile for a hosted environment on the target | 
|  | HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(filter -I%, $(UBOOTINCLUDE))) \ |