Compile Qt 5.1.1 with Cygwin (64bit) shipped MinGW64 compiler on Windows 7

[Mr_Ada]

I added -opengl desktop and just did a make. Don't why it is compiling now but it is. I tried to re-configure but that didn't work but it is compiling which is a good sign!

[Mr_Ada]

Ok. it stopped compiling. Here is what it is complaining about:
mingw32-make[4]: Entering directory 'C:/qt_src/qtbase/src/widgets'
(set PATH=C:\qt_src\qtbase\lib;%PATH:)=^)%) & C:\qt_src\qtbase\bin\uic.exe dialogs\qfiledialog.ui -o ui_qfiledialog.h
Makefile.Debug:647: recipe for target 'ui_qfiledialog.h' failed
mingw32-make[4]: *** [ui_qfiledialog.h] Error 255
mingw32-make[4]: Leaving directory 'C:/qt_src/qtbase/src/widgets'
Makefile:34: recipe for target 'debug' failed
mingw32-make[3]: *** [debug] Error 2
mingw32-make[3]: Leaving directory 'C:/qt_src/qtbase/src/widgets'
Makefile:411: recipe for target 'sub-widgets-make_first' failed
mingw32-make[2]: *** [sub-widgets-make_first] Error 2
mingw32-make[2]: Leaving directory 'C:/qt_src/qtbase/src'
Makefile:41: recipe for target 'sub-src-make_first' failed
mingw32-make[1]: *** [sub-src-make_first] Error 2
mingw32-make[1]: Leaving directory 'C:/qt_src/qtbase'
makefile:56: recipe for target 'module-qtbase-make_first' failed
mingw32-make: *** [module-qtbase-make_first] Error 2

[Mr_Ada]

path issue!!! Doesn't like " " in the path!

[Mr_Ada]

still compiling and linking...

[JKSH]

Yes, it takes several hours on old PCs (it took over 3 hours to compile Qt 4.8 on my old Windows XP laptop; can't remember its specs)

If you have a dual-core processor, passing "-j 2" or "-j 3" into mingw32-make will let it to compile with 2 or 3 threads in parallel, speeding things up a little.

You can also only compile a subset of modules. Example:
@
mingw32-make -j 3 module-qtbase
@
...this will only compile the modules in the qtbase subfolder (http://qt-project.org/wiki/Qt_5_Structure shows you which modules are in which subfolder)

[Mr_Ada]

i have a quad core processor. I guess I can stop it and resubmit with -j 10 (wee hoo! it is flying now! ) LOL

[JKSH]

Enjoy! :D

[Mr_Ada]

Gosh I must have too old a system. It went for 8 hours and still didn't finish! I had to reboot and try again with less -j #. My computer was very unresponsive.

[Mr_Ada]

ok. after several attempts to compile the windows software I am still having issues where it craps out and stop executing the make process. Here are the last mingw32-make commands before it exitted:
mingw32-make[6]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/validators'
mingw32-make[5]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/validators'
mingw32-make[6]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/wiggly'
mingw32-make[5]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/wiggly'
mingw32-make[6]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/windowflags'
mingw32-make[5]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/windowflags'
mingw32-make[6]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/styles'
mingw32-make[5]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets/styles'
mingw32-make[4]: Leaving directory 'C:/qt_src/qtbase/examples/widgets/widgets'
mingw32-make[3]: Leaving directory 'C:/qt_src/qtbase/examples/widgets'
mingw32-make[2]: Leaving directory 'C:/qt_src/qtbase/examples'
mingw32-make[1]: Leaving directory 'C:/qt_src/qtbase'
makefile:56: recipe for target 'module-qtbase-make_first' failed
mingw32-make: *** [module-qtbase-make_first] Error 2

my config is this:
configure -prefix C:\Qt5d -developer-build -opensource -confirm-license -static -platform win32-g++ -qt-zlib -qt-libpng -qt-libjpeg -opengl desktop 1>R.log 2>&

[Mr_Ada]

Ok. I have given up trying to build Qt on Windows XP 64 from source. No configuration selection will make this ever complete to the end of the make process.

What I wanted to do in order to support my bindings effort is a way to get to the source code while executing. Since GDB was barking about finding files I thought I needed to rebuild QT from src. No. I just needed to learn how to in GDB to go find the source files. Well that worked as I can step into the Qt's src but I still cannot figure out why I am not getting my sample program to display labels when I do all the constructing of that label from my Ada code. The CPP code can do it just fine so I am confused as to why. I can build a central widget, I can display a push button from Ada but not text labels. Crazy. I thought maybe it was a QFlags issue but am not sure why. Maybe there is a way to say to Qt , "hey, draw that widget now" function. This is frustrating to the nth degree, especially when only some things work.

[JKSH]

I've never heard of 8+ hour builds before... it might have gotten stuck in a loop, or having too many threads might have caused its efficiency to plummet. I usually spawn N+1 threads, where N = # of cores.

I'm sorry I'm unable to provide more help. May I suggest subscribing to and asking at the "Interest mailing list":http://lists.qt-project.org/mailman/listinfo/interest, where folks are more familiar with the low-level internals of Qt and might have experience with cross-language bindings. Or ask in an Ada forum.

[Mr_Ada]

Well I got lucky tonight and figured out what was going on. My sample Ada program can generate the same objects as a CPP program can. No issues with virtual object either.

Next biggie is to determine how to get signals/slots to work.

Thanks for all of your help.

chris

[JKSH]

Glad to hear that things are looking better.

All the best with your binding efforts!