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14 lines
510 B
14 lines
510 B
#!/bin/sh
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# missing "; @:" for recipeless rules makes SHELL payload useless
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# (see also ../lib/report.mk); this results in broken target graphs
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# (so REPORT=1 gets crippled)
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sed 's/^[a-z]\+\/.*:.*$/\n&/' "$@" \
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| grep -vE '^(#|export|if|else|endif|define|endef)' \
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| sed ':loop /^[^#].*[^\\]\\$/N; s/\\\n//; t loop' \
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| grep -vE ':=| = | ?= | += |^\$' \
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| sed ':loop /^[a-z]\+\/.*:.*$/N; s/\n\t\+@*/\; /; t loop' \
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| grep -vE ';|^$' && exit 1 ||:
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# see also http://unix.stackexchange.com/questions/228547
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