$ gcc -O2 -fno-exceptions -mwindows -o cygterm.exe cygterm.cc cygterm.res
gcc: エラー: spawn: No such file or directory
・migw64-x86_64-gcc-core
・migw64-x86_64-gcc-g++
$ x86_64-w64-mingw32-gcc -O2 -fno-exceptions -mwindows -o cygterm.exe cygterm.cc cygterm.res
cygterm.cc:136:23: 致命的エラー: sys/ioctl.h: No such file or directory
