tests/make: cover purging the realpath cache
In purge_relative_cached_realpaths, the hash table containing the cache is modified while being iterated, which needs extra care, so add a test that covers this code in at least a single simple scenario.
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: purge-cache was reached.
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exit status 0
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@ -1,8 +1,15 @@
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# $NetBSD: varname-dot-objdir.mk,v 1.2 2020/08/16 14:25:16 rillig Exp $
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# $NetBSD: varname-dot-objdir.mk,v 1.3 2024/06/01 11:06:17 rillig Exp $
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#
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# Tests for the special .OBJDIR variable.
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# TODO: Implementation
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all:
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@:;
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# Add an entry to the cached_realpath table, to test cleaning up
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# that table in purge_relative_cached_realpaths.
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# Having a ':=' assignment in the command line is construed but works
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# well enough to reach the code.
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@${MAKE} -f ${MAKEFILE} 'VAR:=$${:U.:tA}' purge-cache
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purge-cache:
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: ${.TARGET} was reached.
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