Package: mingw32-gcc-gfortran

"mingw32-gcc-gfortran" package binaries on CentOS:

/usr/bin/i686-w64-mingw32-gfortran /usr/i686-w64-mingw32/sys-root/mingw/bin/libgfortran-3.dll /usr/i686-w64-mingw32/sys-root/mingw/bin/libquadmath-0.dll

You may install this package on CentOS with yum install mingw32-gcc-gfortran