build: set up host command for egrep
It is used for the kernel build and uses GNU specific features Signed-off-by: Felix Fietkau <nbd@nbd.name>
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@ -114,6 +114,10 @@ $(eval $(call SetupHostCommand,grep,Please install GNU 'grep', \
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ggrep --version 2>&1 | grep GNU, \
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grep --version 2>&1 | grep GNU))
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$(eval $(call SetupHostCommand,egrep,Please install GNU 'grep', \
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gegrep --version 2>&1 | grep GNU, \
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egrep --version 2>&1 | grep GNU))
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$(eval $(call SetupHostCommand,getopt, \
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Please install an extended getopt version that supports --long, \
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gnugetopt -o t --long test -- --test | grep '^ *--test *--', \
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