First it fails to compile:
popthelp.c:15:10: fatal error: sys/ioctl.h: No such file or directory
15 | #include <sys/ioctl.h>
| ^~~~~~~~~~~~~
And then it does not want to link:
/nix/store/k35kvfyhzhlpx71gf05zm6gy23alg571-x86_64-w64-mingw32-binutils-2.39/bin/x86_64-w64-mingw32-ld: .libs/popt.o: in function `execCommand':
/build/popt-1.19/src/popt.c:521: undefined reference to `getuid'
/nix/store/k35kvfyhzhlpx71gf05zm6gy23alg571-x86_64-w64-mingw32-binutils-2.39/bin/x86_64-w64-mingw32-ld: /build/popt-1.19/src/popt.c:521: undefined reference to `geteuid'
/nix/store/k35kvfyhzhlpx71gf05zm6gy23alg571-x86_64-w64-mingw32-binutils-2.39/bin/x86_64-w64-mingw32-ld: /build/popt-1.19/src/popt.c:521: undefined reference to `getgid'
/nix/store/k35kvfyhzhlpx71gf05zm6gy23alg571-x86_64-w64-mingw32-binutils-2.39/bin/x86_64-w64-mingw32-ld: /build/popt-1.19/src/popt.c:521: undefined reference to `getegid'