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tools: gpio: fix building from the top level with O=

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"make O=<dir> tools/gpio" fails:

  Makefile:27: /tools/build/Makefile.include: No such file or directory

tools/Makefile clears srctree, and the gpio Makefile only works it out
again when building_out_of_srctree is not set, which the top-level
Makefile sets for O= builds.

Also work out srctree when it is empty, as tools/bpf/Makefile does
since commit a89b2cbf71 ("tools, bpf: Fix build for 'make -s
tools/bpf O=<dir>'").

Fixes: 4a6a6f5c4a ("tools: gpio: Use !building_out_of_srctree to determine srctree")
Cc: [email protected]
Assisted-by: LLM
Signed-off-by: Sasha Levin <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>
This commit is contained in:
Sasha Levin authored and Bartosz Golaszewski committed 2026-10-12 16:08:35 +02:00
1 parent fcbc48dc65
commit 52336337f1
1 file changed
+6
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tools/gpio/Makefile
+6
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@@ -7,7 +7,13 @@ bindir ?= /usr/bin
# isn't set and when invoked from selftests build, where srctree
# is set to ".". building_out_of_srctree is undefined for in srctree
# builds
ifeq ($(srctree),)
update_srctree := 1
endif
ifndef building_out_of_srctree
update_srctree := 1
endif
ifeq ($(update_srctree),1)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif