New subject: [trinity-devel] gcc 4.6 & Qt3 - build failure -- Is it me or gcc?

30 Apr 2011

Guys,

   I have finally gotten a few minutes to dive back into Trinity. To my chagrin, 
we have Arch has bumped from gcc 4.5 to gcc 4.6. I am having problems building 
Qt3. Adding to the difficulty, the Qt3 build script for Arch has been through a 
number of changes lately and I haven't had time to verify the new build script 
under gcc 4.5 before the jump to gcc 4.6. So I am working to understand whether 
this build failure is gcc related or if it is a normal screw-up on my end.

   The build is failing in the middle of the build, so this leads me to think 
this might be gcc related.  If anybody can look at the error and determine 
whether this is a gcc issue or not, I would greatly appreciate it. I think what 
I'll do is drop back to a build script that I know was working on gcc 4.5 and 
confirm, but in the interim, I thought I would post the error in hope somebody 
else had seen this already. What does this error look like to the masters?:

g++ -c -pipe -Wall -W -march=i686 -mtune=generic -O2 -pipe -D_REENTRANT -fPIC 
-DQT_SHARED -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_THREAD_SUPPORT 
-D_LARGEFILE_SOURCE -D_LARGE_FILES -D_FILE_OFFSET_BITS=64 -DQT_NO_IMAGEIO_MNG 
-DQT_NO_IMAGEIO_JPEG -DQT_NO_IMAGEIO_PNG -DQT_BUILTIN_GIF_READER=1 
-DQT_NO_STYLE_MAC -DQT_NO_STYLE_AQUA -DQT_NO_STYLE_INTERLACE 
-DQT_NO_STYLE_WINDOWSXP -DQT_NO_STYLE_COMPACT -DQT_NO_STYLE_POCKETPC 
-I/home/david/tblds/trinity-qt3/src/qt-x11-free-3.3.8b/mkspecs/linux-g++ -I. 
-I/usr/include/freetype2 -I3rdparty/opentype -I../include -I/usr/X11R6/include 
-I/usr/X11R6/include -I.moc/release-shared-mt/ -o 
.obj/release-shared-mt/qapplication_x11.o kernel/qapplication_x11.cpp
In file included from ../include/qmap.h:49:0,
                  from kernel/qmime.h:46,
                  from kernel/qevent.h:48,
                  from kernel/qobject.h:48,
                  from kernel/qwidget.h:46,
                  from kernel/qdesktopwidget.h:43,
                  from kernel/qapplication.h:45,
                  from kernel/qapplication_x11.cpp:67:
../include/qvaluelist.h:91:13: error: ‘ptrdiff_t’ does not name a type
../include/qvaluelist.h:167:13: error: ‘ptrdiff_t’ does not name a type
In file included from ../include/qmap.h:49:0,
                  from kernel/qmime.h:46,
                  from kernel/qevent.h:48,
                  from kernel/qobject.h:48,
                  from kernel/qwidget.h:46,
                  from kernel/qdesktopwidget.h:43,
                  from kernel/qapplication.h:45,
                  from kernel/qapplication_x11.cpp:67:
../include/qvaluelist.h:427:13: error: ‘ptrdiff_t’ does not name a type
In file included from kernel/qmime.h:46:0,
                  from kernel/qevent.h:48,
                  from kernel/qobject.h:48,
                  from kernel/qwidget.h:46,
                  from kernel/qdesktopwidget.h:43,
                  from kernel/qapplication.h:45,
                  from kernel/qapplication_x11.cpp:67:
../include/qmap.h:110:13: error: ‘ptrdiff_t’ does not name a type
../include/qmap.h:226:13: error: ‘ptrdiff_t’ does not name a type
In file included from kernel/qmime.h:46:0,
                  from kernel/qevent.h:48,
                  from kernel/qobject.h:48,
                  from kernel/qwidget.h:46,
                  from kernel/qdesktopwidget.h:43,
                  from kernel/qapplication.h:45,
                  from kernel/qapplication_x11.cpp:67:
../include/qmap.h:607:13: error: ‘ptrdiff_t’ does not name a type
kernel/qapplication_x11.cpp: In member function ‘int 
QApplication::x11ProcessEvent(XEvent*)’:
kernel/qapplication_x11.cpp:3693:54: warning: suggest parentheses around ‘&&’ 
within ‘||’ [-Wparentheses]
kernel/qapplication_x11.cpp:3706:54: warning: suggest parentheses around ‘&&’ 
within ‘||’ [-Wparentheses]
kernel/qapplication_x11.cpp: In member function ‘bool 
QETWidget::translateMouseEvent(const XEvent*)’:
kernel/qapplication_x11.cpp:4122:30: warning: suggest parentheses around ‘&&’ 
within ‘||’ [-Wparentheses]
kernel/qapplication_x11.cpp: In member function ‘bool 
QETWidget::translateKeyEventInternal(const XEvent*, int&, QString&, int&,
char&, 
int&, QEvent::Type&, bool)’:
kernel/qapplication_x11.cpp:5161:8: warning: suggest explicit braces to avoid 
ambiguous ‘else’ [-Wparentheses]
kernel/qapplication_x11.cpp:5232:52: warning: suggest parentheses around ‘&&’ 
within ‘||’ [-Wparentheses]
kernel/qapplication_x11.cpp:5235:52: warning: suggest parentheses around ‘&&’ 
within ‘||’ [-Wparentheses]
kernel/qapplication_x11.cpp: In function ‘int isPaintOrScrollDoneEvent(Display*, 
XEvent*, XPointer)’:
kernel/qapplication_x11.cpp:5524:34: warning: suggest parentheses around ‘&&’ 
within ‘||’ [-Wparentheses]
make[2]: *** [.obj/release-shared-mt/qapplication_x11.o] Error 1
make[2]: Leaving directory 
`/home/david/tblds/trinity-qt3/src/qt-x11-free-3.3.8b/src'
make[1]: *** [sub-src] Error 2
make[1]: Leaving directory `/home/david/tblds/trinity-qt3/src/qt-x11-free-3.3.8b'
make: *** [init] Error 2
==> ERROR: A failure occurred in build().
     Aborting...

   I'll go try an older build script that used qt-x11-free-3.3.8 instead of 
qt-x11-free-3.3.8b. I'll report back :p

-- 
David C. Rankin, J.D.,P.E.