2020-12-03 08:41:04 +00:00
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# Use the last part of the out path as hash input for the build.
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# This should ensure that it is deterministic across rebuilds of the same
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# derivation and not easily collide with other builds.
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2021-01-15 22:18:51 +00:00
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# We also truncate the hash so that it cannot cause reference cycles.
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2021-09-18 10:52:07 +00:00
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NIX_CFLAGS_COMPILE="${NIX_CFLAGS_COMPILE:-} -frandom-seed=$(
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2021-01-15 22:18:51 +00:00
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outbase="${out##*/}"
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randomseed="${outbase:0:10}"
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echo $randomseed
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)"
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2021-09-18 10:52:07 +00:00
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export NIX_CFLAGS_COMPILE
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