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d36a9eef2b
If the file doesn't exist, make will conclude that the missing prerequisite should trigger a rebuild of the binaries.
26 lines
467 B
Bash
Executable File
26 lines
467 B
Bash
Executable File
#!/bin/sh
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# Author: Christian Couder <chriscool@tuxfamily.org>
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# MIT LICENSED
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if test "$#" -lt 3
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then
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echo >&2 "usage $0 FILE VALUES MSG..."
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exit 1
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fi
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FLAG_FILE="$1"
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FLAG_VALS="$2"
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shift
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shift
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FLAG_MSGS="$@"
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test -f $FLAG_FILE || touch $FLAG_FILE
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# Use x in front of tested values as flags could be
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# interpreted by "test" to be for itself.
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if test x"$FLAG_VALS" != x"$(cat "$FLAG_FILE")"
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then
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echo "$FLAG_MSGS"
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echo "$FLAG_VALS" >"$FLAG_FILE"
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fi
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