additional variables for windows msys
+set MSYSTEM=MINGW%ARCH%
set MSYS2_PATH_TYPE=inherit
+set CHERE_INVOKING=1
+FOR /F "delims=" %%i in ('cygpath.exe -u "%PREFIX%"') DO set "PREFIX=%%i"
+FOR /F "delims=" %%i in ('cygpath.exe -u "%BUILD_PREFIX%"') DO set "BUILD_PREFIX=%%i"
+
bash -lc "autoreconf --install --symlink -I m4"
bash -lc "configure --prefix=$PREFIX"
