QT5 build: CC: No such file or directory

SGaist · wrote on 21 Jan 2021, 21:12

Did you try to specify the Solaris mkspec ?

Michele31415 · wrote on 22 Jan 2021, 01:14

Ah ha! I set QMAKE_CC and QMAKE_CXX in qtbase/mkspecs/solaris-cc/qmake.conf and that got me going again. Configure went much further this time but now it's stopped with this:

/opt/qt5/qtbase/src/corelib/global/qrandom.cpp: In function ‘void fallback_fill(quint32*, qsizetype)’:
/opt/qt5/qtbase/src/corelib/global/qrandom.cpp:297:18: error: ‘getauxval’ was not declared in this scope
  297 |     ulong base = getauxval(AT_BASE);

Apparently getauxval is some linux thing. There's a discussion around this here: http://lists.opencsw.org/pipermail/users/2019-January/010420.html so unless anyone has a better suggestion, I'll pursue that.

Michele31415 · wrote on 22 Jan 2021, 16:46

I decided the simplest thing was to just remove getauxval since it seemed to be optional anyway. Now we've made more progress. configure is almost finished but ends like this:
...........

(long list of files redacted)
...Done.
Info: creating super cache file /opt/qt5/qtbase/.qmake.super
Info: creating cache file /opt/qt5/qtbase/.qmake.cache
ERROR: Invalid value 'test' supplied to command line option 'nomake'.
/opt/qt5/qtbase $

SGaist · wrote on 22 Jan 2021, 18:36

Isn't it "-nomake tests" ?

Michele31415 · wrote on 22 Jan 2021, 22:06

Good catch - I missed the last character when I copied the command out of the instructions. But now I'm getting the "You cannot make a shadow build from a source tree containing a previous build.
Cannot proceed." message.
Is my only option to delete the entire qt5 directory and start over? I'm not seeing a "confclean" option.

SGaist · wrote on 22 Jan 2021, 22:11

I'd go with make distclean but I am not sure, I haven't done any in tree build since over a decade. Always out of source, it allows you to keep your sources clean and start from scratch more easily.

Michele31415 · wrote on 23 Jan 2021, 01:11

I'm just following the recipe here: https://wiki.qt.io/Building_Qt_5_from_Git

$ mkdir qt5-build
$ cd qt5-build
$ ..\\qt5\configure -developer-build -opensource -nomake examples -nomake tests

In any event distclean did not work for me.

/opt/qt5/qtbase $ gmake distclean
gmake: *** No rule to make target 'distclean'.  Stop.
/opt/qt5/qtbase $

Update: Oh dear - I just noticed I somehow ended up in qtbase rather than qt5-build. Why don't I just start over.

SGaist · wrote on 23 Jan 2021, 15:36

Well, since you are getting started, it's not a bad idea to just build qtbase. You can then build the rest later on.

Michele31415 · wrote on 23 Jan 2021, 17:00

I just started over from scratch. This time it almost finished:

..Done.
Info: creating stash file /opt/qt5/qt5-build/.qmake.stash
Info: creating super cache file /opt/qt5/qt5-build/.qmake.super

Running configuration tests...
Checking for gold linker... yes
Checking for valid makespec... 
ERROR: Cannot compile a minimal program. The toolchain or QMakeSpec is broken.

Check config.log for details.

/opt/qt5/qt5-build $ cat config.log
executing config test use_gold_linker
+ cd /opt/qt5/qt5-build/qtbase/config.tests && /usr/gcc/10/bin/g++ -fuse-ld=gold -o conftest-out conftest.cpp
test config.qtbase.tests.use_gold_linker succeeded
executing config test verifyspec
+ cd /opt/qt5/qt5-build/qtbase/config.tests/common/verifyspec && /opt/qt5/qt5-build/qtbase/bin/qmake -qtconf /opt/qt5/qt5-build/qtbase/bin/qt.conf "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared use_gold_linker console" /opt/qt5/qtbase/config.tests/common/verifyspec
+ cd /opt/qt5/qt5-build/qtbase/config.tests/common/verifyspec && MAKEFLAGS= /opt/csw/bin/gmake
> /usr/gcc/10/bin/g++ -c -O2  -I/opt/qt5/qtbase/config.tests/common/verifyspec -I. -I/usr/sfw/include -I/opt/qt5/qtbase/mkspecs/solaris-cc -o verifyspec.o /opt/qt5/qtbase/config.tests/common/verifyspec/verifyspec.cpp
> CC  -o verifyspec verifyspec.o   -L/usr/sfw/lib 
> gmake: CC: No such file or directory
> gmake: *** [Makefile:64: verifyspec] Error 127
/opt/qt5/qt5-build $

So it looks like we're back to this "no CC" business. I thought I had fixed that with the following change to qtbase/mkspecs/mkspec.conf:

#QMAKE_CXX               = CC
QMAKE_CXX               = /usr/gcc/10/bin/g++

Technically this was more of an end-run than a fix. I still don't know where CC is being set. So there must be another instance somewhere I can't find.

SGaist · wrote on 23 Jan 2021, 21:43

Silly question but did you check your environment variables ?

Note that you seem to set only QMAKE_CXX, did you also set the other one ?

Michele31415 · wrote on 23 Jan 2021, 22:00

Yes, I also said this in qtbase/mkspecs/mkspec.conf

#QMAKE_COMPILER          = sun_cc
QMAKE_COMPILER          = gcc

Env vars are:

/opt/qt5/qt5-build $ echo $CC
/usr/gcc/10/bin/gcc
/opt/qt5/qt5-build $ echo $CXX
/usr/gcc/10/bin/g++
/opt/qt5/qt5-build $ which gcc
/usr/gcc/10/bin/gcc
/opt/qt5/qt5-build $ gcc --version
gcc (GCC) 10.2.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

/opt/qt5/qt5-build $ g++ --version
g++ (GCC) 10.2.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

/opt/qt5/qt5-build $ which gcc

Do I need anything else there?

SGaist · wrote on 24 Jan 2021, 07:50

What about the QMAKE_CC variable ?

Michele31415 · wrote on 24 Jan 2021, 19:43

That's set too:

# QMAKE_COMPILER          = sun_cc
QMAKE_COMPILER          = gcc

QMAKE_CC                = gcc

SGaist · wrote on 24 Jan 2021, 19:51

I just realized, did you try to specific the platform in your configure options ?

Michele31415 · wrote on 24 Jan 2021, 19:59

Uh, I guess not. What file would that be?

SGaist · wrote on 24 Jan 2021, 20:52

Based on the mkspecs available, I would try the solaris-g++ or solaris-g++-64.

Michele31415 · wrote on 24 Jan 2021, 22:24

DING!! Give that man a ceegar! Thank you so much.

...(bunch of stuff) ...
Qt WebEngine:
  Proprietary Codecs ..................... no
  Spellchecker ........................... yes
  ALSA ................................... no
  PulseAudio ............................. no

Note: No wayland-egl support detected. Cross-toolkit compatibility disabled.



**Qt is now configured for building.** Just run 'gmake'.
Once everything is built, you must run 'gmake install'.
Qt will be installed into

Prior to reconfiguration, make sure you remove any leftovers from
the previous build.
/opt/qt5/qt5-build $

For the record, this is the command that worked:

/opt/qt5/qt5-build $ ../configure -developer-build -opensource -nomake examples -nomake tests -platform solaris-g++

I'm so happy I'm just going to let it go for now and wait til tomorrow to try the gmake :-)

I am wondering about that "remove any leftovers" comment. Is that anything in particular?

Michele31415 · wrote on 25 Jan 2021, 18:51

Well gmake ran for a long time but finally gave up. This is the tail of the tale:

../../../../include/QtGui/../../../../qtbase/src/gui/painting/qtransform.h:57:20: note: ‘class QTransform’ declared here
   57 | class Q_GUI_EXPORT QTransform
      |                    ^~~~~~~~~~
../../../../include/QtGui/../../../../qtbase/src/gui/painting/qtransform.h: In copy constructor ‘QTransform::QTransform(const QTransform&)’:
../../../../include/QtGui/../../../../qtbase/src/gui/painting/qtransform.h:88:46: warning: ‘void* std::memcpy(void*, const void*, std::size_t)’ writing to an object of type ‘class QTransform’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead []8;;https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wclass-memaccess-Wclass-memaccess]8;;]
   88 |     { memcpy(this, &other, sizeof(QTransform)); }
      |                                              ^
../../../../include/QtGui/../../../../qtbase/src/gui/painting/qtransform.h:57:20: note: ‘class QTransform’ declared here
   57 | class Q_GUI_EXPORT QTransform
      |                    ^~~~~~~~~~
In file included from /opt/qt5/qtbase/src/plugins/platforms/vnc/qvnc_p.h:43,
                 from /opt/qt5/qtbase/src/plugins/platforms/vnc/main.cpp:42:
/opt/qt5/qtbase/src/plugins/platforms/vnc/qvncscreen.h: At global scope:
/opt/qt5/qtbase/src/plugins/platforms/vnc/qvncscreen.h:76:22: error: expected ‘;’ at end of member declaration
   76 |     bool swapBytes() const
      |                      ^~~~~
      |                           ;
gmake[5]: *** [Makefile:1665: .obj/main.o] Error 1
gmake[5]: Leaving directory '/opt/qt5/qt5-build/qtbase/src/plugins/platforms/vnc'
gmake[4]: *** [Makefile:121: sub-vnc-make_first] Error 2
gmake[4]: Leaving directory '/opt/qt5/qt5-build/qtbase/src/plugins/platforms'
gmake[3]: *** [Makefile:100: sub-platforms-make_first] Error 2
gmake[3]: Leaving directory '/opt/qt5/qt5-build/qtbase/src/plugins'
gmake[2]: *** [Makefile:695: sub-plugins-make_first] Error 2
gmake[2]: Leaving directory '/opt/qt5/qt5-build/qtbase/src'
gmake[1]: *** [Makefile:47: sub-src-make_first] Error 2
gmake[1]: Leaving directory '/opt/qt5/qt5-build/qtbase'
gmake: *** [Makefile:89: module-qtbase-make_first] Error 2
/opt/qt5/qt5-build $

Michele31415 · wrote on 25 Jan 2021, 19:00

So I gave qvncscreen.h the semicolon it was missing:

#if Q_BYTE_ORDER == Q_BIG_ENDIAN
    bool swapBytes() const ;
#endif

and tried again. Now we get:

g++ -c -g -Wall -W -D_REENTRANT -fPIC -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_PLUGIN -DQT_GUI_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I/opt/qt5/qtbase/src/plugins/platforminputcontexts/ibus -I. -I../../../../include/QtGui/5.8.0 -I../../../../include/QtGui/5.8.0/QtGui -I../../../../include -I../../../../include/QtGui -I../../../../include/QtDBus -I../../../../include/QtCore/5.8.0 -I../../../../include/QtCore/5.8.0/QtCore -I../../../../include/QtCore -I.moc -I/opt/csw/include -I/usr/openwin/include -I/usr/sfw/include -I/opt/qt5/qtbase/mkspecs/solaris-g++ -o .obj/qibusproxy.o /opt/qt5/qtbase/src/plugins/platforminputcontexts/ibus/qibusproxy.cpp
/opt/qt5/qtbase/src/plugins/platforms/vnc/qvncclient.cpp: In member function ‘void QVncClient::convertPixels(char*, const char*, int) const’:
/opt/qt5/qtbase/src/plugins/platforms/vnc/qvncclient.cpp:145:17: error: ‘swapBytes’ was not declared in this scope; did you mean ‘m_swapBytes’?
  145 |             if (swapBytes)
      |                 ^~~~~~~~~
      |                 m_swapBytes

SGaist · 25 Jan 2021, 19:26

Just add the missing ; and go on with your build.

I don't know why it's not there both the dev and latest 5.15 branch have it.