build errors (compiling)

[a61kt]

platform arch
code https://aur.archlinux.org/cgit/aur.git/snapshot/enve-git.tar.gz

make[2]: *** [Makefile:12836: outputsettingsdialog.o] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from ../../../../src/app/GUI/ekeyfilter.cpp:18:
../../../../src/app/GUI/mainwindow.h: In member function ‘void MainWindow::writeRecentFiles()’:
../../../../src/app/GUI/mainwindow.h:217:37: warning: ‘QTextStream& QTextStreamFunctions::endl(QTextStream&)’ is deprecated: Use Qt::endl [-Wdeprecated-declarations]
217 | stream << recent << endl;
| ^~~~
In file included from /usr/include/qt/QtCore/qdebug.h:49,
from /usr/include/qt/QtCore/qcborcommon.h:45,
from /usr/include/qt/QtCore/qcborvalue.h:45,
from /usr/include/qt/QtCore/qcborarray.h:43,
from /usr/include/qt/QtCore/QtCore:38,
from ../../../../src/core/smartPointers/stdpointer.h:19,
from ../../../../src/core/smartPointers/ememory.h:20,
from ../../../../src/core/undoredo.h:21,
from ../../../../src/app/GUI/mainwindow.h:24,
from ../../../../src/app/GUI/ekeyfilter.cpp:18:
/usr/include/qt/QtCore/qtextstream.h:293:75: note: declared here
293 | Q_CORE_EXPORT QT_DEPRECATED_VERSION_X(5, 15, "Use Qt::endl") QTextStream &endl(QTextStream &s);
| ^~~~
In file included from ../../../../src/app/GUI/ekeyfilter.cpp:18:
../../../../src/app/GUI/mainwindow.h:217:37: warning: ‘QTextStream& QTextStreamFunctions::endl(QTextStream&)’ is deprecated: Use Qt::endl [-Wdeprecated-declarations]
217 | stream << recent << endl;
| ^~~~
In file included from /usr/include/qt/QtCore/qdebug.h:49,
from /usr/include/qt/QtCore/qcborcommon.h:45,
from /usr/include/qt/QtCore/qcborvalue.h:45,
from /usr/include/qt/QtCore/qcborarray.h:43,
from /usr/include/qt/QtCore/QtCore:38,
from ../../../../src/core/smartPointers/stdpointer.h:19,
from ../../../../src/core/smartPointers/ememory.h:20,
from ../../../../src/core/undoredo.h:21,
from ../../../../src/app/GUI/mainwindow.h:24,
from ../../../../src/app/GUI/ekeyfilter.cpp:18:
/usr/include/qt/QtCore/qtextstream.h:293:75: note: declared here
293 | Q_CORE_EXPORT QT_DEPRECATED_VERSION_X(5, 15, "Use Qt::endl") QTextStream &endl(QTextStream &s);
| ^~~~
make[2]: Leaving directory '/home/user/.cache/yay/enve-git/src/enve/build/Release/src/app'
make[1]: *** [Makefile:50: sub-app-make_first] Error 2
make[1]: Leaving directory '/home/user/.cache/yay/enve-git/src/enve/build/Release/src'
make: *** [Makefile:47: sub-src-make_first] Error 2
==> ERROR: A failure occurred in build().
Aborting...
-> error making: enve-git

[BobSynfig]

Qt 5.12.4 Desktop gcc 64-bit is the recommended version, it seems your are using 5.15.
Please have a try!