I decided to build qt with mingw on my own.
But I encounterd an error while building libQtGuid4.a
information is as follow:


g++ -mthreads -shared -Wl,--out-implib,f:\qt-everywhere-opensource-src-4.7.4\qt-
everywhere-opensource-src-4.7.4\lib\libQtGuid4.a -o ..\..\lib\QtGuid4.dll object
_script.QtGuid.Debug† -L"f:\qt-everywhere-opensource-src-4.7.4\qt-everywhere-ope
nsource-src-4.7.4\lib" -L"f:\qt-everywhere-opensource-src-4.7.4\qt-everywhere-op
ensource-src-4.7.4\lib" -lgdi32 -lcomdlg32 -loleaut32 -limm32 -lwinmm -lwinspool
-lws2_32 -lole32 -luuid -luser32 -ladvapi32 tmp\obj\debug_shared\QtGuid_resourc
e_res.o -lmsimg32 -lshell32 -lQtCored4
c:/mingw/bin/../lib/gcc/mingw32/4.6.1/../../../../mingw32/bin/ld.exe: out of mem
ory allocating 125660256 bytes
collect2: ld returned 1 exit status
mingw32-make[2]: *** [..\..\lib\QtGuid4.dll] Error 1
mingw32-make[2]: Leaving directory `F:/qt-everywhere-opensource-src-4.7.4/qt-eve
rywhere-opensource-src-4.7.4/src/gui'
mingw32-make[1]: *** [debug-all] Error 2
mingw32-make[1]: Leaving directory `F:/qt-everywhere-opensource-src-4.7.4/qt-eve
rywhere-opensource-src-4.7.4/src/gui'
mingw32-make: *** [sub-gui-make_default-ordered] Error 2


I have 4G ram and closed as many applications as possible. Is this a bug?

My mingw included gcc 4.6.1. Iím using windows7 64bit