Windows 8.1 Pro MinGW Gfortran命令提示符“无法识别的命令”错误

Question

C:\\Users\\redacted\\Documents\\redacted>gfortran hibrac.f -o hibrac.exe

'gfortran' is not recognized as an internal or external command, operable program or batch file.

https://gcc.gnu.org/wiki/GFortranBinariesWindows seems similar to my problem: gfortran.exe is in C:\\Windows\\MinGW\\bin -- except the solution appears not to apply to Windows 8.1 Pro:

Right click on My Computer, Properties, Advanced Tab, Environment Variables.

Instead I tried: Right click on 'This PC' within File Explorer, Properties, Advanced system settings, Advanced Tab -- and I cannot find an equivalent-looking section that allows me to proceed with the advised solution.

As background information:

I had installed MinGW Installation Manager which installed mingw32-gcc-fortran (together with mingw32-base, -gcc-g++, and -gcc-objc) in the recommended C:\\Windows\\MinGW folder, without any apparent error message.

Isn't it acceptable -- standard practice -- to have one's code in a folder separate from this MinGW folder? ie a subdirectory of my Users\\account rather than a subdirectory of MinGW. This isn't the problem, is it? What do I need to do to get it to recognize the gfortran.exe, or call it correctly?

Please tell me what to do to get it working. If it's relevant, I have a Japanese computer with an English language pack installed (it seems to have some gaps, such as some text in the Settings charm or startup/shutdown text being in Japanese).

Answer 1

This looks very much like you have neglected to add C:\\MinGW\\bin to the effective PATH for the command window, in which you are attempting to run the gfortran command.

Your question isn't entirely specific on this point, (ie you could improve the question), but you hint that you were unable to add the appropriate PATH entry to the global environment variables, because you couldn't find the appropriate control panel applet? I know that this is often recommended as part of a MinGW setup, but the installer will not do it for you, because I, as the maintainer of mingw-get, don't consider that to be best practice; much better, IMO, to add it for each specific command window in which you need it to take effect, by running (once, at the start of each command prompt session) the command:

path %PATH%;C:\MinGW\bin

If you prefer, you may create a batch file to do this for you, along with any other initializations you wish to perform, (or better still, use MSYS as the working shell environment, in which case the PATH initialization is taken care of by the shell's own initialization scripts).