tools: fix cross-compiling tools when HOSTCC is overridden
Richard reported U-Boot tools issues in OpenEmbedded/Yocto project.
OE needs to be able to change the default compiler. If we pass in
HOSTCC through the make command, it overwrites all HOSTCC instances,
including ones in tools/Makefile and tools/env/Makefile, which breaks
"make cross_tools" and "make env", respectively.
Add "override" directives to avoid overriding HOSTCC instances that
really need to point to the cross-compiler.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/env/Makefile b/tools/env/Makefile
index 38ad118..95b28c0 100644
--- a/tools/env/Makefile
+++ b/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))) \