can't build on January 2024 Slackware

[yurytch]

Maybe it's just me, but first time in several years I can't build the requirements part of TDE, starting with TQT3. My system is January 2024 Slackware, with multilib. I'm trying to build 14.1.2 release

tqt3-14.1.2-x86_64-1-build-log.gz

[Ray-V]

For the 14.0.13 release I added QMAKE_INCDIR to the qmake.conf patch in tqt3.SlackBuild.
Can't remember now why, but I think it was because of the different environment variables TQTDIR for development builds and QTDIR for release builds causing build problems and to match -headerdir as set in configure.

That difference is no longer the case and I can reproduce a lot of the errors with R14.1.1 installed because the inclusion of QMAKE_INCDIR in qmake.conf is picking up headers from that previous installation which are not compatible with R14.1.2.

So, option 1 would be to remove any previous installation of TDE.
This is what I did when testing the 14.1.2 build and everything built ok.

Option 2 - with a previous TDE installed
Remove these lines from the tqt3.SlackBuild qmake.conf patch

@@ -40 +40 @@
-QMAKE_INCDIR       =
+QMAKE_INCDIR       = $(TQTDIR)/include/tqt

Will build tqt3 and tqtinterface ok, but untested beyond that and other packages will need updating for compatibility with the new tqt headers.

I don't have an up-to-date Slackware installed, so if there are still build errors, we'll need to look at possible problems building with a later Slackware.

[yurytch]

Yes, both parts of your advice (correcting the patch and removing the old upper-level stuff) work, thank you! I'm not closing the issue yet, I want to see how some other components build (besides those I build usually).

[yurytch]

Everything works using the approach as discussed previously. I'm closing this. Thank you!