New comment by ericonr on void-packages repository https://github.com/void-linux/void-packages/pull/22181#issuecomment-632379853 Comment: `int64_t` should be defined in `/usr/include/stdint.h` (it's pulled from `/usr/include/bits/alltypes.h`, but you should use the stdint header). If you can't figure out where the error came from, fixing it with a patch that adds that include would work. It shouldn't be needed, though.