diff options
Diffstat (limited to 'unit-tests/directive-ifmake.mk')
| -rw-r--r-- | unit-tests/directive-ifmake.mk | 55 |
1 files changed, 41 insertions, 14 deletions
diff --git a/unit-tests/directive-ifmake.mk b/unit-tests/directive-ifmake.mk index 20329bc5ce25..4d49add72626 100644 --- a/unit-tests/directive-ifmake.mk +++ b/unit-tests/directive-ifmake.mk @@ -1,44 +1,52 @@ -# $NetBSD: directive-ifmake.mk,v 1.4 2020/08/30 14:25:45 rillig Exp $ +# $NetBSD: directive-ifmake.mk,v 1.8 2020/11/15 20:20:58 rillig Exp $ # # Tests for the .ifmake directive, which provides a shortcut for asking # whether a certain target is requested to be made from the command line. +# +# TODO: Describe why the shortcut may be useful (if it's useful at all), +# instead of sticking to the simple '.if' only. + +# The targets 'first' and 'second' are passed in on the command line. # This is the most basic form. .ifmake first -.info ok: positive condition works +. info ok: positive condition works .else -.warning positive condition fails +. warning positive condition fails .endif # The not operator works as expected. # An alternative interpretation were that this condition is asking whether # the target "!first" was requested. To distinguish this, see the next test. .ifmake !first -.warning unexpected +. warning unexpected .else -.info ok: negation works +. info ok: negation works .endif # See if the exclamation mark really means "not", or if it is just part of -# the target name. +# the target name. Since it means 'not', the two exclamation marks are +# effectively ignored, and 'first' is indeed a requested target. If the +# exclamation mark were part of the name instead, the name would be '!!first', +# and such a target was not requested to be made. .ifmake !!first -.info ok: double negation works +. info ok: double negation works .else -.warning double negation fails +. warning double negation fails .endif # Multiple targets can be combined using the && and || operators. .ifmake first && second -.info ok: both mentioned +. info ok: both mentioned .else -.warning && does not work as expected +. warning && does not work as expected .endif # Negation also works in complex conditions. .ifmake first && !unmentioned -.info ok: only those mentioned +. info ok: only those mentioned .else -.warning && with ! does not work as expected +. warning && with ! does not work as expected .endif # Using the .MAKEFLAGS special dependency target, arbitrary command @@ -46,10 +54,29 @@ # possible to extend the targets to be made. .MAKEFLAGS: late-target .ifmake late-target -.info Targets can even be added at parse time. +. info Targets can even be added at parse time. +.else +. info No, targets cannot be added at parse time anymore. +.endif + +# Numbers are interpreted as numbers, no matter whether the directive is +# a plain .if or an .ifmake. +.ifmake 0 +. error +.endif +.ifmake 1 .else -.info No, targets cannot be added at parse time anymore. +. error .endif +# A condition that consists of a variable expression only (without any +# comparison operator) can be used with .if and the other .ifxxx directives. +.ifmake ${:Ufirst} +. info ok +.else +. error +.endif + + first second unmentioned late-target: : $@ |