choosenim fails to compile on windows 10
I have gcc installed.
error message copy/paste below:

``` 
choosenim.nim(85)        choose
        ... choosenim.nim(72)        chooseVersion
        ... choosenim.nim(46)        installVersion
        ... builder.nim(91)          build
        ... builder.nim(23)          buildCompiler
        ... builder.nim(10)          buildFromCSources
        ... utils.nim(19)            doCmdRaw
        ... Execution failed with exit code 1
        ... Command: build.bat
        ... Output: gcc -w -O3 -fno-strict-aliasing -Ic_code -c c_code\1_1\compiler_nim.c -o c_code\1_1\compiler_nim.o
        ... In file included from c_code\1_1\compiler_nim.c:7:0:
        ... c_code/nimbase.h:477:13: error: size of array 'Nim_and_C_compiler_disagree_on_target_architecture' is negative
        ...  typedef int Nim_and_C_compiler_disagree_on_target_architecture[sizeof(NI) == sizeof(void*) && NIM_INTBITS == sizeof(NI)*8 ? 1 : -1];
        ...              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        ... FAILURE
```