Using qmake for the first time

[Perdrix]

I'm trying to build kchmviewer on macOS, so I copied the repos, and added the first line below to kchmviewer.pro so it reads:

amonra@Saturn kchmviewer-master % cat kchmviewer.pro 
QT += Core5Compat
SUBDIRS += lib src
TEMPLATE = subdirs 
CONFIG += debug
src.depends = lib

but when I then ran qmake followed by make I got:

amonra@Saturn kchmviewer-master % qmake
amonra@Saturn kchmviewer-master % make 
cd lib/ && ( test -e Makefile || /opt/Qt/6.9.0/macos/bin/qmake -o Makefile /Users/amonra/kchmviewer-master/lib/lib.pro ) && /Applications/Xcode.app/Contents/Developer/usr/bin/make -f Makefile 
cd libebook/ && ( test -e Makefile || /opt/Qt/6.9.0/macos/bin/qmake -o Makefile /Users/amonra/kchmviewer-master/lib/libebook/libebook.pro ) && /Applications/Xcode.app/Contents/Developer/usr/bin/make -f Makefile 
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -c -pipe -stdlib=libc++ -O2 -fPIC -std=gnu++1z  -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.5.sdk -mmacosx-version-min=12 -Wall -Wextra -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -I../../src -I/opt/Qt/6.9.0/macos/lib/QtWidgets.framework/Headers -I/opt/Qt/6.9.0/macos/lib/QtGui.framework/Headers -I/opt/Qt/6.9.0/macos/lib/QtCore.framework/Headers -I. -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.5.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.5.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.5.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.5.sdk/System/Library/Frameworks/AGL.framework/Headers -I/opt/Qt/6.9.0/macos/mkspecs/macx-clang -F/opt/Qt/6.9.0/macos/lib -o ebook_chm.o ebook_chm.cpp
In file included from ebook_chm.cpp:23:
./ebook_chm.h:23:10: fatal error: 'QTextCodec' file not found
   23 | #include <QTextCodec>
      |          ^~~~~~~~~~~~
1 error generated.
make[2]: *** [ebook_chm.o] Error 1
make[1]: *** [sub-libebook-make_first] Error 2
make: *** [sub-lib-make_first] Error 2
amonra@Saturn kchmviewer-master % 

qmake -query says:

amonra@Saturn kchmviewer-master % qmake -query
QT_SYSROOT:
QT_INSTALL_PREFIX:/opt/Qt/6.9.0/macos
QT_INSTALL_ARCHDATA:/opt/Qt/6.9.0/macos
QT_INSTALL_DATA:/opt/Qt/6.9.0/macos
QT_INSTALL_DOCS:/opt/Qt/Docs/Qt-6.9.0
QT_INSTALL_HEADERS:/opt/Qt/6.9.0/macos/include
QT_INSTALL_LIBS:/opt/Qt/6.9.0/macos/lib
QT_INSTALL_LIBEXECS:/opt/Qt/6.9.0/macos/libexec
QT_INSTALL_BINS:/opt/Qt/6.9.0/macos/bin
QT_INSTALL_TESTS:/opt/Qt/6.9.0/macos/tests
QT_INSTALL_PLUGINS:/opt/Qt/6.9.0/macos/plugins
QT_INSTALL_QML:/opt/Qt/6.9.0/macos/qml
QT_INSTALL_TRANSLATIONS:/opt/Qt/6.9.0/macos/translations
QT_INSTALL_CONFIGURATION:
QT_INSTALL_EXAMPLES:/opt/Qt/Examples/Qt-6.9.0
QT_INSTALL_DEMOS:/opt/Qt/Examples/Qt-6.9.0
QT_HOST_PREFIX:/opt/Qt/6.9.0/macos
QT_HOST_DATA:/opt/Qt/6.9.0/macos
QT_HOST_BINS:/opt/Qt/6.9.0/macos/bin
QT_HOST_LIBEXECS:/opt/Qt/6.9.0/macos/libexec
QT_HOST_LIBS:/opt/Qt/6.9.0/macos/lib
QMAKE_SPEC:macx-clang
QMAKE_XSPEC:macx-clang
QMAKE_VERSION:3.1
QT_VERSION:6.9.0
amonra@Saturn kchmviewer-master % 

Clearly I'm missing something ... but what?

Thanks, David

[aha_1980]

@Perdrix khcmviewer.pro is a SUBDIRS project. You have to add that line in the pro files within the src and lib folder, or in a pri include file that is used from all the pro files.

Regards.

[Perdrix]

Hmmm I created a qmake.conf file in project root folder with:

QMAKE_MACOSX_DEPLOYMENT_TARGET = 13.4
QMAKE_APPLE_DEVICE_ARCHS = x86_64 arm64
QT += core5compat

but that didn't seem to help.

I renamed that to a .pri file in the root folder and included it in all the .pro files which was a bit of a pain but seems to work.

Did I just get something wrong with the qmake.conf file?

[SGaist]

@Perdrix Hi,

If memory serves well it is .qmake.conf.

[Perdrix]

Hmm...

amonra@Saturn kchmviewer-master % cat .qmake.conf
QMAKE_MACOSX_DEPLOYMENT_TARGET = 13.4
QMAKE_APPLE_DEVICE_ARCHS = x86_64 arm64
QT += core5compat
amonra@Saturn kchmviewer-master % 

but it didn't appear to impact the subdirectory stuff as I still get the same problem. Clearly there's more to this...

David

[SGaist]

I just tested this on a dummy subdirs project with a .qmake.conf file containing the following at the root of the project and three sub projects (app, lib, lib2):

QT += qt5compat

QMAKE_MACOSX_DEPLOYMENT_TARGET = 13.4
QMAKE_APPLE_DEVICE_ARCHS = x86_64 arm64

In each .pro file:

message("$$QT")
message("$$QMAKE_MACOSX_DEPLOYMENT_TARGET $$QMAKE_APPLE_DEVICE_ARCHS")

It prints the default set of Qt modules with core5compat added at the end.

[Perdrix]

OK thanks - I'll work it all out ...
D.