[xen staging] build: avoid Paths.mk in hypervisor build

[patchbot@xxxxxxx]

commit 204f44257731a33083820a97de44fb330316a04f
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Feb 5 10:27:17 2026 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Feb 5 10:27:17 2026 +0100

    build: avoid Paths.mk in hypervisor build
    
    Its inclusion placed where it is, it affects the hypervisor build as well.
    The hypervisor build, in its _install rule, uses $(DEBUG_DIR), first in
    
            [ -d "$(D)$(DEBUG_DIR)" ] || $(INSTALL_DIR) $(D)$(DEBUG_DIR)
    
    $(D) is an absolute directory (shorthand for $(DESTDIR)). $(DEBUG_DIR) as
    set by Paths.mk is, too. Both point into the build tree. The two simply
    shouldn't be glued together.
    
    Note that the earlier
    
            [ -d $(D)$(BOOT_DIR) ] || $(INSTALL_DIR) $(D)$(BOOT_DIR)
    
    continues to be working fine, as BOOT_DIR continues to be controlled by
    config/StdGNU.mk. Its DEBUG_DIR isn't taking effect anymore, when for the
    hypervisor build it should.
    
    And of course behavior now differs between building xen/ in a tree where
    tools/ was built before vs in an otherwise clean tree.
    
    Fixes: 82b9cc04a7c7 ("build: add make macro for making file from file.in")
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
 Config.mk | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Config.mk b/Config.mk
index a3e219a0b8..fdc0245079 100644
--- a/Config.mk
+++ b/Config.mk
@@ -162,7 +162,9 @@ endef
 PATH_FILES := Paths.mk
 INC_FILES = $(foreach f, $(PATH_FILES), $(XEN_ROOT)/config/$(f))
 
+ifndef XEN_FULLVERSION
 -include $(INC_FILES)
+endif
 
 BUILD_MAKE_VARS = $(foreach f, $(PATH_FILES), $(shell awk '$$2 == ":=" { print 
$$1; }' $(XEN_ROOT)/config/$(f).in))
 
--
generated by git-patchbot for /home/xen/git/xen.git#staging