Adding QMAKE_CXXFLAGS += -std=c++0x to Pro file make c++ - Internal compiler error : segmentation fault
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The latest can be found "here":http://sourceforge.net/projects/mingwbuilds/, the project at Goole Code is outdated.
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OK configure work fine with the link you gave me.
but we back to square one:
@....\corelib\tools\qlocale_tools.cpp: In function 'char* qdtoa(double, int, int
, int*, int*, char**, char**)':
....\corelib\tools\qlocale_tools.cpp:2257:25: error: '_MCW_EM' was not declared
in this scope
....\corelib\tools\qlocale_tools.cpp:2257:33: error: '_MCW_DN' was not declared
in this scope
....\corelib\tools\qlocale_tools.cpp:2257:41: error: '_MCW_RC' was not declared
in this scope
Makefile.Release:5718: recipe for target 'tmp/obj/release_shared/qlocale_tools.o
' failed
mingw32-make[5]: *** [tmp/obj/release_shared/qlocale_tools.o] Error 1
mingw32-make[5]: Leaving directory 'C:/qt5/2012.11/qtbase/src/tools/bootstrap'
Makefile:33: recipe for target 'release' failed
mingw32-make[4]: *** [release] Error 2
mingw32-make[4]: Leaving directory 'C:/qt5/2012.11/qtbase/src/tools/bootstrap'
Makefile:41: recipe for target 'sub-tools-bootstrap-make_first' failed
mingw32-make[3]: *** [sub-tools-bootstrap-make_first] Error 2
mingw32-make[3]: Leaving directory 'C:/qt5/2012.11/qtbase/src/tools'
Makefile:50: recipe for target 'sub-tools-make_first' failed
mingw32-make[2]: *** [sub-tools-make_first] Error 2
mingw32-make[2]: Leaving directory 'C:/qt5/2012.11/qtbase/src'
Makefile:39: recipe for target 'sub-src-make_first' failed
mingw32-make[1]: *** [sub-src-make_first] Error 2
mingw32-make[1]: Leaving directory 'C:/qt5/2012.11/qtbase'
makefile:51: recipe for target 'module-qtbase-make_first' failed
mingw32-make: *** [module-qtbase-make_first] Error 2@ -
A quick search revealed that both, MinGW and GCC, come with a <code>float.h</code>. One having those definitions (which should be picked), one not.
So this might be an GCC / MinGW issue, and not directly related to Qt.
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"Yes I found this as well":https://bugreports.qt-project.org/browse/QTBUG-7576
but it's seems to be old and not working...
How can I use only MinGW? maybe it other Gcc conflicting! -
If I change this line
_control87(oldbits, _MCW_EM|_MCW_DN|_MCW_RC);
in qlocale_tools.cpp to
_control87(oldbits, MCW_EM);
it's run until I get this error:
c:/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lQt5Cored0
collect2.exe: error: ld returned 1 exit status -
I used VS2012 command prompt to build "Qt5Sdk":http://qt.gitorious.org/qtsdk and it's work, but it's not recognize #include <QtGui/QApplication>, #include <QFileDialog> and more...it's does recognize #include <QGui>.
maybe VS2012 build didn't goes well?
I added to PATH “C:\qt5\2012.11\qtbase\bin and C:\qt5\2012.11\qtbase\lib".- BTW in Windows7 where's are the INCLUDE, LIB and LIBPATH, becaise I can see I can set them from Qt, but when entered windows 7 environment variables there is only PATH?
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[quote author="GoldenAxe" date="1352797811"]> c:/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lQt5Cored0
collect2.exe: error: ld returned 1 exit status[/quote]
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Some update:
I couldn't able to build qt5 with mingw, but I did succeed doing this with vs2012 command prompt, but since they changed the include trees in qt5, I needed to do a lots of include changes in my project, so I decided not to use qt5. Nevertheless since I wanted good support with c++11, I built qt4.8.x which did succeed with mingw, but c++11 functions like for example stod didn't recognize with it, I was very disappointed, so now I will try build it with vs2012...lets see if this will sort this out! -
[quote author="GoldenAxe" date="1352965521"]... I needed to do a lots of include changes in my project.[/quote]
The fixqt4headers.pl script found in qtbase/bin will do that for you.
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The problem it's not only includes, some objects like QMessageBox, after fixing the includes are still not recognized as well.