mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-22 02:37:15 +00:00
1b65f0bd2b
o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable checks in InitObjdir. Explicit .OBJDIR target always allows read-only directory. o Fix building and unit-tests on non-BSD. o More code cleanup and refactoring. o More unit tests
82 lines
2 KiB
Makefile
82 lines
2 KiB
Makefile
# $NetBSD: directive-if.mk,v 1.7 2020/11/15 20:20:58 rillig Exp $
|
|
#
|
|
# Tests for the .if directive.
|
|
#
|
|
# See also:
|
|
# cond-*.mk
|
|
|
|
# TODO: Implementation
|
|
|
|
.if 0
|
|
. error
|
|
.else
|
|
. info 0 evaluates to false.
|
|
.endif
|
|
|
|
.if 1
|
|
. info 1 evaluates to true.
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
# There is no '.ifx'.
|
|
#
|
|
# The commit from 2005-05-01 intended to detect this situation, but it failed
|
|
# to do this since the call to is_token had its arguments switched. They were
|
|
# expected as (str, token, token_len) but were actually passed as (token, str,
|
|
# token_len). This made is_token return true even if the directive was
|
|
# directly followed by alphanumerical characters, which was wrong. The
|
|
# typical cases produced an error message such as "Malformed conditional
|
|
# (x 123)", while the intended error message was "Unknown directive".
|
|
#
|
|
# Back at that time, the commits only modified the main code but did not add
|
|
# the corresponding unit tests. This allowed the bug to hide for more than
|
|
# 15 years.
|
|
#
|
|
# Since 2020-11-10, the correct error message is produced. The '.ifx' is no
|
|
# longer interpreted as a variant of '.if', therefore the '.error' and '.else'
|
|
# are interpreted as ordinary directives, producing the error messages
|
|
# "if-less else" and "if-less endif".
|
|
.ifx 123
|
|
. error
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
# Missing condition.
|
|
.if
|
|
. error
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
# A plain word must not start with a '"'. It may contain a embedded quotes
|
|
# though, which are kept. The quotes need not be balanced. The next space
|
|
# ends the word, and the remaining " || 1" is parsed as "or true".
|
|
.if ${:Uplain"""""} == plain""""" || 1
|
|
. info Quotes in plain words are probably a mistake.
|
|
# XXX: Accepting quotes in plain words is probably a mistake as well.
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
.if0
|
|
. error
|
|
.else
|
|
. info Don't do this, always put a space after a directive.
|
|
.endif
|
|
|
|
.if${:U-3}
|
|
. info Don't do this, always put a space after a directive.
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
.if${:U-3}>-4
|
|
. info Don't do this, always put a space around comparison operators.
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
all:
|