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build: cleanup possibly dangling Python 2 host symlink 

When bumping buildroot to Python 3, we need to assure, that Python
symlink in staging bin directory points to Python >= 3.5 as well.

We can't rely completly just on SetupHostCommand as its executed only in
cases when the $(STAGING_DIR_HOST)/bin/python doesn't already exist, so
we need to remove it before running SetupHostCommand.

Acked-by: Yousong Zhou <yszhou4tech@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
This commit is contained in:
Petr Štetiar 2019-03-20 09:52:58 +01:00
parent 19938c8de7
commit 3b68fb57c9
2 changed files with 14 additions and 0 deletions
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2
include/prereq-build.mk
View File

@ -141,6 +141,8 @@ $(eval $(call SetupHostCommand,wget,Please install GNU 'wget', \
$(eval $(call SetupHostCommand,perl,Please install Perl 5.x, \
perl --version | grep "perl.*v5"))
$(eval $(call CleanupPython2))
$(eval $(call SetupHostCommand,python,Please install Python >= 3.5, \
python3.7 -V 2>&1 | grep -E 'Python 3\.[5-9]\.?', \
python3.6 -V 2>&1 | grep -E 'Python 3\.[5-9]\.?', \

12
include/prereq.mk
View File

@ -66,6 +66,18 @@ define RequireHeader
$$(eval $$(call Require,$(1),$(2)))
endef
define CleanupPython2
define Require/python2-cleanup
if [ -f "$(STAGING_DIR_HOST)/bin/python" ] && \
$(STAGING_DIR_HOST)/bin/python -V 2>&1 | \
grep -q 'Python 2'; then \
rm $(STAGING_DIR_HOST)/bin/python; \
fi
endef
$$(eval $$(call Require,python2-cleanup))
endef
define QuoteHostCommand
'$(subst ','"'"',$(strip $(1)))'
endef