26 lines
1004 B
Makefile
Executable File
26 lines
1004 B
Makefile
Executable File
# $NetBSD: make-exported.mk,v 1.7 2022/09/09 18:36:15 sjg Exp $
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#
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# As of 2020-08-09, the code in Var_Export is shared between the .export
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# directive and the .MAKE.EXPORTED variable. This leads to non-obvious
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# behavior for certain variable assignments.
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-env= make-exported-value-env
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-literal= make-exported-value-literal
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UT_VAR= ${UNEXPANDED}
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# Before 2020-10-03, the following line took the code path of .export-env,
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# which was surprising behavior. Since 2020-10-03 this line tries to
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# export the variable named "-env", but that is rejected because the
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# variable name starts with a hyphen.
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.MAKE.EXPORTED= -env
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# Before 2020-10-03, if the value of .MAKE.EXPORTED started with "-literal",
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# make behaved like a mixture of .export-literal and a regular .export.
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#
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# Since 2020-10-03, the "variable" named "-literal" is not exported anymore,
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# it is just ignored since its name starts with '-'.
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.MAKE.EXPORTED= -literal UT_VAR
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all:
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@env | sort | ${EGREP} '^UT_|make-exported-value' || true
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