running build
running build_ext
building 'helloworld' extension
c:\mingw\bin\gcc.exe -mno-cygwin -mdll -O -Wall -IC:\Python33\include -IC:\Pytho
n33\include -c hello.c -o build\temp.win32-3.3\Release\hello.o
hello.c: In function 'inithelloworld':
hello.c:19: warning: implicit declaration of function 'Py_InitModule3'
writing build\temp.win32-3.3\Release\helloworld.def
c:\mingw\bin\gcc.exe -mno-cygwin -shared -s build\temp.win32-3.3\Release\hello.o
 build\temp.win32-3.3\Release\helloworld.def -LC:\Python33\libs -LC:\Python33\PC
build -lpython33 -lmsvcr100 -o build\lib.win32-3.3\helloworld.pyd
Cannot export PyInit_helloworld: symbol not defined
build\temp.win32-3.3\Release\hello.o:hello.c:(.text+0x16): undefined reference t
o `Py_InitModule3'
collect2: ld returned 1 exit status
error: command 'gcc' failed with exit status 1