Ruby

Try to fix compile error on windows

https://github.com/ruby/ruby/runs/1041040167?check_suite_focus=true#step:11:177

compiling ../src/re.c
re.c
../src/re.c(317): error C2057: expected constant expression
../src/re.c(317): error C2466: cannot allocate an array of constant size 0
../src/re.c(467): error C2057: expected constant expression
../src/re.c(467): error C2466: cannot allocate an array of constant size 0
../src/re.c(467): error C2133: 'opts': unknown size
../src/re.c(559): error C2057: expected constant expression
../src/re.c(559): error C2466: cannot allocate an array of constant size 0
../src/re.c(559): error C2133: 'optbuf': unknown size
../src/re.c(673): error C2057: expected constant expression
../src/re.c(673): error C2466: cannot allocate an array of constant size 0
../src/re.c(673): error C2133: 'opts': unknown size
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.27.29110\bin\HostX64\x64\cl.EXE"' : return code '0x2'
Stop.