qt5-qtbase: Unable to open port: can't read "qt_qmake_spec": no such variable

[mf2k (Frank Schima)]

$ port info qt5-qtbase
Error: Unable to open port: can't read "qt_qmake_spec": no such variable

[mf2k (Frank Schima)]

Hard to tell what's going on here. Is it a problem with the huge Portfile or the qt5 portgroup?

[mascguy (Christopher Nielsen)]

Works fine for me, on 10.15. Which macOS release are you testing on Frank?

[mascguy (Christopher Nielsen)]

Adding @chrstphrchvz as well

[mf2k (Frank Schima)]

Monterey 12.5.

[mascguy (Christopher Nielsen)]

In addition to 10.15, just tested on Big Sur and Monterey. And both of the latter are fine too.

Do you have any local portfile modifications in play? I'd also be interested in the output from port -d info qt5-qtbase, as that might help pinpoint where the failure is occurring.

Big Sur:

$ sw_vers
ProductName:	macOS
ProductVersion:	11.6.8
BuildVersion:	20G730

$ port info qt5-qtbase
qt5-qtbase @5.15.5 (aqua)
Variants:             debug, examples, [+]openssl, tests, universal

Description:          Tools and Module(s) for Qt Tool Kit 5: Qt Core, Qt GUI, Qt Network, Qt SQL, Qt Test, Qt Widgets,
                      Qt Concurrent, Qt D-Bus, Qt OpenGL, Qt Platform Headers, Qt Print Support, and Qt XML
Homepage:             https://www.qt.io

Extract Dependencies: xz
Build Dependencies:   pkgconfig, gawk
Library Dependencies: zlib, libpng, libjpeg-turbo, freetype, dbus, glib2, icu, pcre2, harfbuzz, double-conversion, zstd,
                      openssl
Conflicts with:       qt3, qt3-mac, qt56-qtbase, qt511-qtbase, qt53-qtbase, qt57-qtbase, qt58-qtbase, qt513-qtbase,
                      qt55-qtbase, qt59-qtbase
Platforms:            macosx
License:              (LGPL-3 or GPL-3 or OpenSSLException)
Maintainers:          Email: mcalhoun@macports.org, GitHub: MarcusCalhoun-Lopez
                      Policy: openmaintainer

Monterey:

$ sw_vers
ProductName:	macOS
ProductVersion:	12.5.1
BuildVersion:	21G83

$ port info qt5-qtbase
qt5-qtbase @5.15.5 (aqua)
Variants:             debug, examples, [+]openssl, tests, universal

Description:          Tools and Module(s) for Qt Tool Kit 5: Qt Core, Qt GUI, Qt Network, Qt SQL, Qt Test, Qt Widgets,
                      Qt Concurrent, Qt D-Bus, Qt OpenGL, Qt Platform Headers, Qt Print Support, and Qt XML
Homepage:             https://www.qt.io

Extract Dependencies: xz
Build Dependencies:   pkgconfig, gawk
Library Dependencies: zlib, libpng, libjpeg-turbo, freetype, dbus, glib2, icu, pcre2, harfbuzz, double-conversion, zstd,
                      openssl
Conflicts with:       qt3, qt3-mac, qt56-qtbase, qt511-qtbase, qt53-qtbase, qt57-qtbase, qt58-qtbase, qt513-qtbase,
                      qt55-qtbase, qt59-qtbase
Platforms:            macosx
License:              (LGPL-3 or GPL-3 or OpenSSLException)
Maintainers:          Email: mcalhoun@macports.org, GitHub: MarcusCalhoun-Lopez
                      Policy: openmaintainer

[chrstphrchvz (Christopher Chavez)]

I have not reproduced this issue on macOS 10.15 or 12. I haven’t spotted somewhere qt_qmake_spec might not be set in the relevant portfiles/portgroups.

[mf2k (Frank Schima)]

I'm running the latest base from Github. Maybe that's related?

[mascguy (Christopher Nielsen)]

Replying to mf2k:

I'm running the latest base from Github. Maybe that's related?

Can you attach the complete output from port -d info qt5-qtbase? If there is an issue with base, @jmroot will probably want that for review...

[jmroot (Joshua Root)]

DEBUG: can't read "qt_qmake_spec": no such variable
    while executing
"configure.args-append "-platform ${qt_qmake_spec}""
    ("uplevel" body line 270)
    invoked from within
"uplevel 1 $body"
    (procedure "subport" line 9)
    invoked from within
"subport ${name}-${module} {

        if { ${module} ne "qtwebengine" } {
            distname ${module}-${middle_name}-src-${version}
            if {..."
    ("foreach" body line 6)
    invoked from within
"foreach {module module_info} [array get modules] {

    set revision_string [string trim [lindex ${module_info} 7]]
    set revision_string [string ra..."
    (file "Portfile" line 963)
    invoked from within
"source Portfile"
    invoked from within
"$workername eval {source Portfile}"
DEBUG: can't read "qt_qmake_spec": no such variable
    while executing
"error $result"
    (procedure "mportopen" line 53)
    invoked from within
"mportopen $porturl [array get options] [array get merged_variations]"
Error: Unable to open port: can't read "qt_qmake_spec": no such variable

[jmroot (Joshua Root)]

Looks like it's relying on being able to source the portgroup twice, once with a magic variable set and once without, and get different results each time. That's pretty broken.

[mascguy (Christopher Nielsen)]

Replying to jmroot:

Looks like it's relying on being able to source the portgroup twice, once with a magic variable set and once without, and get different results each time. That's pretty broken.

Ah, yep. And the recent change to base - whereby a pg isn't included multiple times - prevents that from working. (Though I fully support that behavior change though, and glad that you added it!)

[jmroot (Joshua Root)]

In 1719a40fce26c09ed29c4ecda3fca6b2fd1bc7a7/macports-ports (master):

qt5 pg: don't rely on multiple inclusion

Split out two new portgroups that can be included instead of the
previous method of setting just_want_qt5_version_info or
just_want_qt5_variables.

Fixes: #65751

[chrstphrchvz (Christopher Chavez)]

Is qt6 affected by a similar issue?

[mascguy (Christopher Nielsen)]

Replying to chrstphrchvz:

Is qt6 affected by a similar issue?

Yep, and Josh fixed via the following commit:

​https://github.com/macports/macports-ports/commit/b0fe9a49e8b4945bc45d6b3360a781b7851f4dc1