fixdep: Allow overriding HOSTCC and HOSTLD

Forwarded: not-needed

objtool always uses HOSTCC, HOSTLD, and HOSTAR, so we need to override
these on the command line for cross-builds of linux-kbuild.  But it
also builds fixdep which still needs to be native in a cross-build.
Add support for REALHOSTCC and REALHOSTLD variables which, if set,
override HOSTCC and HOSTLD for fixdep only.

Gbp-Pq: Topic debian
Gbp-Pq: Name fixdep-allow-overriding-hostcc-and-hostld.patch

diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include
index 8dadaa0fbb4397568ac28e0bbfac9862a86110e6..7407d4622de06a471d3892364e56bda9be1591d9 100644 (file)
--- a/tools/build/Makefile.include
+++ b/tools/build/Makefile.include
@@ -2,7 +2,7 @@
 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
 fixdep:
-       $(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= $(OUTPUT)fixdep
+       $(Q)$(MAKE) -C $(srctree)/tools/build HOSTCC=$(or $(REALHOSTCC),$(HOSTCC)) HOSTLD=$(or $(REALHOSTLD),$(HOSTLD)) CFLAGS= LDFLAGS= $(OUTPUT)fixdep
 
 fixdep-clean:
        $(Q)$(MAKE) -C $(srctree)/tools/build clean