mirror of
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)
61 lines
1.4 KiB
Makefile
61 lines
1.4 KiB
Makefile
# $NetBSD: directive-for-break.mk,v 1.3 2022/09/24 10:52:05 rillig Exp $
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#
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# Tests for .break in .for loops, which immediately terminates processing of
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# the surrounding .for loop.
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# .break terminates the loop early.
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# This is usually done within a conditional.
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.for i in 1 2 3 4 5 6 7 8
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. if $i == 3
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I= $i
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. break
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I= unreached
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. endif
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.endfor
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.if $I != "3"
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. error
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.endif
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# The .break only breaks out of the immediately surrounding .for loop, any
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# other .for loops are continued normally.
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.for outer in o1 o2 o3
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. for inner in i1 i2 i3
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. if ${outer} == o2 && ${inner} == i2
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. break
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. endif
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COMBINED+= ${outer}-${inner}
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. endfor
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.endfor
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# Only o2-i2 and o2-i3 are missing.
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.if ${COMBINED} != "o1-i1 o1-i2 o1-i3 o2-i1 o3-i1 o3-i2 o3-i3"
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. error
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.endif
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# A .break outside the context of a .for loop is an error.
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.if $I == 0
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# No parse error, even though the .break occurs outside a .for loop, since
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# lines from inactive branches are only parsed as far as necessary to see
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# whether they belong to an .if/.elif/.else/.endif chain.
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. break
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.else
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# expect+1: break outside of for loop
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. break
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.endif
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# Since cond.c 1.335 from 2022-09-02 and before cond.c 1.338 from 2022-09-23,
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# the following paragraph generated the wrong error message '4294967294 open
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# conditionals'.
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.if 1
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. if 2
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. for var in value
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. if 3
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. break
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. endif
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. endfor
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. endif
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.endif
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