无法使用gfortran安装此文件（mercury6_2.for）

Question

我试过了：

 Alan@Alan ~/mercury  
 $ gfortran -o mercury6_2.for
 gfortran.exe: fatal error: no input files; unwilling to write output files
 compilation terminated

和

Alan@Alan ~/mercury
$ gfortran -o mercury mercury6_2.for
gfortran.exe: error: CreateProcess: No such file or directory

我的档案存在：

 Alan@Alan ~/mercury
 $ ls
 big.in      element.in    mercury.inc   mercury6_2.for  README.txt
 close.in    element6.for  mercury6.man  message.in      small.in
 close6.for  files.in      mercury6.tar  param.in        swift.incenter code here

gfortran似乎在Cygwin中运行：

Alan@Alan ~/mercury
$ gfortran --version
GNU Fortran (GCC) 4.8.0 20130302 (experimental) [trunk revision 196403]
Copyright (C) 2013 Free Software Foundation, Inc.

GNU Fortran comes with NO WARRANTY, to the extent permitted by law.
You may redistribute copies of GNU Fortran
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING

所以我不知道。

我能以不同的方式做到这一点吗？