build.bat

   1 if not exist ext mkdir ext
   2 start /b /w gcc -O3 -Wl,--export-all-symbols -Wl,--out-implib,libcsRadar.exe.a csRadar.c -o csRadar.exe -lm
   3 start /b /w gcc -O3 -Wl,--export-all-symbols -shared -o ext/csr_substance.dll ext_csr_substance.c -lm -L. -lcsRadar.exe