gnuplot @6.0.3_0 +aquaterm+luaterm+pangocairo+qt5+wxwidgets: build fails with linker error when wrong-architecture Qt frameworks are in /Library/Frameworks

[murrayE]

From log:

:info:build ld: symbol(s) not found for architecture arm64
:info:build clang++: error: linker command failed with exit code 1 (use -v to see invocation)

[murrayE]

main.log

[Schamschula (Marius Schamschula)]

I'm not sure what is going on here. I'm on

macOS 15.5 24F74 arm64
Xcode 16.4 16F6

i.e. the same platform and set of variants. I had a clean build and have gnuplot @6.0.3_0+aquaterm+luaterm+pangocairo+qt5+wxwidgets (active).

[murrayE]

Same Xcode and macOS versions! I just uninstalled existing gnuplot, then attempted same clean install but with configure warning...

:debug:configure Executing portconfigure::configure_finish
:warn:configure Configuration logfiles contain indications of -Wimplicit-function-declaration; check that features were not accidentally disabled:
:msg:configure   strchr: found in gnuplot-6.0.3/config.log

... and then the same linker failure as before (during upgrade attempt) during build.

[Schamschula (Marius Schamschula)]

That warning should not cause a build failure, but is something I'll look into.

[ryandesign (Ryan Carsten Schmidt)]

The log says:

:info:build ld: warning: ignoring file '/Library/Frameworks/QtSvg.framework/QtSvg': found architecture 'x86_64', required architecture 'arm64'
:info:build ld: warning: ignoring file '/Library/Frameworks/QtNetwork.framework/QtNetwork': found architecture 'x86_64', required architecture 'arm64'
:info:build ld: warning: ignoring file '/Library/Frameworks/QtCore.framework/QtCore': found architecture 'x86_64', required architecture 'arm64'
:info:build ld: warning: ignoring file '/Library/Frameworks/QtGui.framework/QtGui': found architecture 'x86_64', required architecture 'arm64'

To fix this, remove the Qt libraries you put in /Library/Frameworks (see wiki:FAQ#libraryframeworks), then sudo port clean gnuplot and try again.

[murrayE]

Which files or folders, exactly need to be removed?

I ask because, for example,

/Library/Frameworks/QtSvg.framework/QtSvg

is an alias for

/Library/Frameworks/QtSvg.framework/Versions/4/Headers/QtSvg