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prereq-build: do not replace binaries with symlinks

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Some programs, like bash and patch, are checked by prereq stage
and have a symlink installed, but then is later built from source.

Now that the prereq-build checks are not successful
just by finding the file alone, it is possible for
a new symlink to overwrite the installed binary.

If a normal file is found in staging_dir/host/bin,
let the check look for the associated stampfile, and if found,
skip creation of a symlink and exit successfully.

Suggested-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: Michael Pratt <mcpratt@pm.me>
This commit is contained in:
Michael Pratt 2023-05-27 17:11:47 -04:00 committed by Petr Štetiar
parent 9ffd6013b9
commit 729909c07f
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1 changed files with 4 additions and 0 deletions
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4
include/prereq.mk
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@ -110,6 +110,10 @@ define SetupHostCommand
*" -> $$$$$$$$bin"*) \ *" -> $$$$$$$$bin"*) \
[ -x "$(STAGING_DIR_HOST)/bin/$(strip $(1))" ] && exit 0 \ [ -x "$(STAGING_DIR_HOST)/bin/$(strip $(1))" ] && exit 0 \
;; \ ;; \
"-"*) \
find "$(STAGING_DIR_HOST)/stamp" | grep $(strip $(1)) && \
[ -x "$(STAGING_DIR_HOST)/bin/$(strip $(1))" ] && exit 0 \
;; \
esac; \ esac; \
ln -sf "$$$$$$$$bin" "$(STAGING_DIR_HOST)/bin/$(strip $(1))"; \ ln -sf "$$$$$$$$bin" "$(STAGING_DIR_HOST)/bin/$(strip $(1))"; \
exit 1; \ exit 1; \