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cond-eof.mk revision 1.6.2.1 
      1 # $NetBSD: cond-eof.mk,v 1.6.2.1 2025/08/02 05:58:31 perseant Exp $
      2 #
      3 # Tests for parsing the end of '.if' conditions, which are represented as the
      4 # token TOK_EOF.
      5 
      6 
      7 SIDE_EFFECT=	${:!echo 'side effect' 1>&2!}
      8 SIDE_EFFECT2=	${:!echo 'side effect 2' 1>&2!}
      9 
     10 # In the following conditions, ${SIDE_EFFECT} is the position of the first
     11 # parse error.  Before cond.c 1.286 from 2021-12-10, it was always fully
     12 # evaluated, even if it was not necessary to expand the expression.
     13 # These syntax errors are an edge case that does not occur during normal
     14 # operation.  Still, it is easy to avoid evaluating these expressions, just in
     15 # case they have side effects.
     16 # expect+1: Malformed conditional "0 ${SIDE_EFFECT} ${SIDE_EFFECT2}"
     17 .if 0 ${SIDE_EFFECT} ${SIDE_EFFECT2}
     18 .endif
     19 # expect+1: Malformed conditional "1 ${SIDE_EFFECT} ${SIDE_EFFECT2}"
     20 .if 1 ${SIDE_EFFECT} ${SIDE_EFFECT2}
     21 .endif
     22 # expect+1: Malformed conditional "(0) ${SIDE_EFFECT} ${SIDE_EFFECT2}"
     23 .if (0) ${SIDE_EFFECT} ${SIDE_EFFECT2}
     24 .endif
     25