Hi,
I'm working on KF5 Portfiles, and have the following routine to help defining
dependencies in the PortGroup:
{{{
# variables to facilitate setting up dependencies to KF5 frameworks that may
(or not)
# also exist as port:kf5-foo-devel .
proc kf5.framework_dependency {name {library 0}} {
upvar #0 kf5.${name}_dep dep
if {${library} ne 0} {
set kf5.lib_path lib
set kf5.lib_ext 5.dylib
set dep
path:${kf5.lib_path}/${library}.${kf5.lib_ext}:kf5-${name}
ui_debug "Dependency expression for KF5ramework ${name}: ${dep}"
} else {
set strlen [string length [info global "kf5.${name}_dep"]]
if {${strlen} ne 0} {
return ${dep}
} else {
set allknown [info global "kf5.*_dep"]
ui_error "No KF5 framework is known corresponding to \"${name}\""
ui_msg "Known framework ports: ${allknown}"
return -code error "Unknown KF5 framework ${name}"
}
}
}
}}}
That procedure is used either to define a path-style dependency, or to obtain
it, mapping the official (lowercase) framework name to the corresponding port
name. What I wonder is whether the existence check is done the way it should.
From what I read, [info exists varname] should detect the existence of
variables no matter the frame they're defined in, but [info exists
kf5.${name}_dep] always returns false for me. Maybe [info exists] doesn't work
with patterns?
Thanks,
R.
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