Any gcc options to modify sizeof a type?

[rorySomething]

Good day,

I'm attempting to build Mit-scheme in MSYS2 with mingw.

When running make I very quickly hit an error.
error: pointers must fit in 'unsigned long'
because it fails this check
if (SIZEOF_UINTPTR_T > SIZEOF_UNSIGNED_LONG)

Are there any obscure compiler flags I can pass for this situation?
I have yet to try compiling with 32 bit mingw where I assume uintptr and unsigned long will both be 32 bits.

In the meantime I'm going to use guile that is available through pacman. (Thank you to everyone involved.)

At some point I hope to contribute back to msys2 and mingw64. I've been using it to try to make games with openGL that will be friendly to Linux and Windows if any are ever to a point of working and fun.

[mati865]

I'm not aware of such option and doubt somebody has created it.

On Windows long is 32-bit long so the correct fix is to use long long in your code.

[rorySomething]

Thank you, maybe I'll try to spend a few minutes getting crazy with sed.

Guile in the msys2 terminal is no fun with arrow keys or some other keyboard shortcut getting errors included in the entered command lines.
Endless errors with \x1b; (Escape code? whenever I use arrow keys to fix text)

Eventually I'll cave and just install cygwin and run it there.

[jeremyd2019]

Cygwin is LP64 rather than LLP64. https://en.wikipedia.org/wiki/64-bit_computing#64-bit_data_models

[rorySomething]

But is mingw-gcc compiling for windows natively? Not using cygwin emulation

[jeremyd2019]

right, which means it is LLP64. If you want LP64 on Windows I think you need to use Cygwin

[rorySomething]

Thanks, I read that around the other way.