build_xbmc_win32 Resource temporarily unavailable问题

在Windows上编译打包XBMC的时候遇到的问题

错误信息：

################################
## compiling mingw libs
## NOPROMPT  = 1
## MAKECLEAN = clean
################################
##### building ffmpeg dlls #####
backgrounding: sh ./build_xbmc_win32.sh clean /xbmc/project/Win32BuildSetup/bgprocess & (workdir: /xbmc/lib/ffmpeg)
waiting on bgprocess...
.      0 [main] sh 7316 fork_copy: linked dll data/bss pass 0 failed, 0x6AF51000..0x6AF51A54, done 0, windows pid 6820, Win32 error 998
./build_xbmc_win32.sh: fork: Resource temporarily unavailable
.......................................................
解决办法：