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https://github.com/freebsd/freebsd-src
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2e36ab2363
Relevant/interesting changes (see ChangeLog for more):
o variables like .newline and .MAKE.{GID,PID,PPID,UID}
should be read-only.
o .[NO]READONLY: for control of read-only variables
o .SYSPATH: for controlling the path searched for makefiles
o allow for white-space between command specifiers @+-
o add more details to warning 'Extra targets ignored'
o make.1: sync list of built-in variables with reality
sort list of built-in variables
o cond.c: add more details to error message for numeric comparison
o job.c: fix handling of null bytes in output
o Allow .break to terminate a .for loop early
o var.c: fix out-of-bounds errors when parsing
o fix exit status for '-q' (since 1994)
21 lines
280 B
Makefile
21 lines
280 B
Makefile
# $NetBSD: var-readonly.mk,v 1.1 2023/01/24 00:20:00 sjg Exp $
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# the answer
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N = 42
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.READONLY: N
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# this should be ignored
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N = 666
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.if ${N} != 42
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.error N ($N) should be 42
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.endif
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.NOREADONLY: N
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# now we can change it
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N = 69
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.if ${N} == 42
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.error N should not be 42
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.endif
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all:
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