qt3 build error (fragment)

make[2]: Entering directory `/data/Installs/Build/qt-x11-free-3.3.8b/src'
g++ -c -pipe -fno-exceptions -Wall -W -O2 -march=i486 -mtune=i686 -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_BUILTIN_GIF_READER=1 -DQT_NO_STYLE_MAC -DQT_NO_STYLE_AQUA -DQT_NO_STYLE_CDE -DQT_NO_STYLE_MOTIFPLUS -DQT_NO_STYLE_INTERLACE -DQT_NO_STYLE_PLATINUM -DQT_NO_STYLE_WINDOWSXP -DQT_NO_STYLE_SGI -DQT_NO_STYLE_COMPACT -DQT_NO_STYLE_POCKETPC -DQT_NO_STYLE_WINDOWS -I/data/Installs/Build/qt-x11-free-3.3.8b/mkspecs/linux-g++ -I. -I/usr/include/freetype2 -I3rdparty/opentype -I../include -I/usr/include -I/usr/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 function 'void qt_init_internal(int*, char**, Display*, Qt::HANDLE, Qt::HANDLE)':
kernel/qapplication_x11.cpp:2012:8: warning: 'KeySym XKeycodeToKeysym(Display*, KeyCode, int)' is deprecated (declared at /usr/include/X11/Xlib.h:1695) [-Wdeprecated-declarations]
kernel/qapplication_x11.cpp:2012:62: warning: 'KeySym XKeycodeToKeysym(Display*, KeyCode, int)' is deprecated (declared at /usr/include/X11/Xlib.h:1695) [-Wdeprecated-declarations]
kernel/qapplication_x11.cpp:2042:8: warning: 'KeySym XKeycodeToKeysym(Display*, KeyCode, int)' is deprecated (declared at /usr/include/X11/Xlib.h:1695) [-Wdeprecated-declarations]
kernel/qapplication_x11.cpp:2042:66: warning: 'KeySym XKeycodeToKeysym(Display*, KeyCode, int)' is deprecated (declared at /usr/include/X11/Xlib.h:1695) [-Wdeprecated-declarations]
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 `/data/Installs/Build/qt-x11-free-3.3.8b/src'
make[1]: *** [sub-src] Error 2
make[1]: Leaving directory `/data/Installs/Build/qt-x11-free-3.3.8b'
make: *** [init] Error 2