qt5-qtbase 5.15.15 fails on x86_64 Sequoia 15.4

[rcfa]

The build fails with a variety of errors, which given how many packages depend on this one, is pretty much a show-stopper…

qt5-qtbase @5.15.15_2+openssl
macOS 15.4 (darwin/24.4.0) arch i386
MacPorts 2.10.5
Xcode 16.3, CLT 16.3.0.0.1.1741129865
SDK 15
MACOSX_DEPLOYMENT_TARGET: 15.0

[rcfa]

Install build output

[rcfa]

config.log

[rcfa]

main.log

[MicroTed (Ted Mansell)]

I had a similar error while trying to install wxmaxima, and after figuring out how to build it by hand, I modified the local Portfile to remove -icu and add some include and library paths because there were more errors of headers not being found. I know next to nothing about this, so there is probably a much better solution.

/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/aqua/qt5/Portfile

blitz:qt5% diff Portfile.bak Portfile

1290d1289
<                 -icu                    \
1306c1305,1308
<                 -no-system-proxies
---
>                 -no-system-proxies      \
>                 -I '/opt/local/include' \
>                 -L '/opt/local/lib'     \
>                 -L '/opt/local/libexec/openssl3/lib'

I then had to force authentication by following the warning. This is on M1 MBP, Sequoia 15.4.1 with latest xcode tools [Apple clang version 17.0.0 (clang-1700.0.13.3)] I didn't try removing ports altogether and reinstalling, but did update everything (I think)

[Schamschula (Marius Schamschula)]

This is an issue with icu 76.1, see: ​https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2335638

[Schamschula (Marius Schamschula)]

The first error is fixed by icu 77.1, by adding the missing header <type_traits> to char16ptr.h.

However, qt5 seems to ignore all the attempts to pass -std=c++17 to config.tests/icu/Makefile. This causes all the templates not to be included.

I added QMAKE_CXXFLAGS+=-std=c++17 to the Portfile, which allowed the configure test for icu to pass.

[neverpanic (Clemens Lang)]

See ​https://github.com/macports/macports-ports/pull/29396, which fixes this.

[neverpanic (Clemens Lang)]

In 6d2aa781a3d018ce2aeecb30f029beb8b36e6c53/macports-ports (master):

qt5-qtbase: Fix build on macOS 26

AGL.framework no longer exists, but is apparently also not needed — just
remove it.

Additionally, the configure test for ICU fails because ICU now required
C++17, but the config test did not pass the required flag. Some attempts
seem to have been made to fix this, but they weren't sufficient in my
testing unless the qmake project file also declared 'CONFIG += c++11'.
Add a patch that does that.

Closes: #72729
Closes: #72174