Fortran Installation

Brian Inglis
Sun Jan 3 22:59:16 GMT 2021

On 2021-01-03 14:42, Lou Umscheid wrote:
> On 1/3/2021 4:03 PM, Brian Inglis wrote:
>> On 2021-01-03 12:18, Lou Umscheid via Cygwin wrote:
>>> On 1/3/2021 1:41 PM, Brian Inglis wrote:
>>>> On 2021-01-03 11:37, Brian Inglis wrote:
>>>>> On 2021-01-03 11:22, Lou Umscheid via Cygwin wrote:
>>>>>> On 1/3/2021 12:28 PM, Brian Inglis wrote:
>>>>>>> On 2021-01-03 09:44, Lou Umscheid via Cygwin wrote:
>>>>>>>> I would like to install Fortran on newly installed Cygwin64 on my new LG 
>>>>>>>> laptop. I did this 9+ years ago for Cygwin32 on my Dell T1600 which is 
>>>>>>>> now fading. The process 9 years ago was long and hard over several weeks 
>>>>>>>> with many fallbacks and redo's. I am competent in Fortran programming 
>>>>>>>> but have only a minimum knowledge of Linux/Unix. Can anyone point me to 
>>>>>>>> a guide (I searched but could not find any) to installing Fortran, 
>>>>>>>> including which files to download, PATH, alias changes, etc. I know it 
>>>>>>>> is a lot to ask, but ANY help would be appreciated.
>>>>>>> To get a list of manually picked and installed packages in your current 
>>>>>>> Cygwin installation (excluding library packages except if they are devel 
>>>>>>> or doc packages) run the following command against your current 
>>>>>>> installation:
>>>>>>> $ awk '$3 && ($1 !~ /^lib/ || $1 ~ /-(devel|doc)/) {print $1}' \
>>>>>>>     /etc/setup/installed.db | tee cygwin-packages-picked.txt
>>>>>>> * transfer the file cygwin-packages-picked.txt to your new system e.g. 
>>>>>>> your Windows account Downloads folder on your new system,
>>>>>>> * download to e.g. your Windows 
>>>>>>> account Downloads folder on your new system,
>>>>>>> * run setup-x86_64 on your new system with no selections to install a 
>>>>>>> basic Cygwin installation for you, then
>>>>>>> * start a Cygwin shell in a terminal session, and
>>>>>>> * rerun the Cygwin setup program with e.g.:
>>>>>>> $ cygstart /proc/cygdrive/c/Users/.../Downloads/setup-x86_64 \
>>>>>>> -P "`cat /proc/cygdrive/c/Users/.../Downloads/cygwin-packages-picked.txt`"
>>>>>>> to start installing the manually picked packages you had on your old 
>>>>>>> system (dependencies will be automatically pulled in):
>>>>>>> * you *MUST* exit your Cygwin shell and terminal, and ensure that you 
>>>>>>> have no other Cygwin processes still running, before allowing the Cygwin 
>>>>>>> setup program to proceed; and
>>>>>>> * wait patiently for all the package downloads, installations, and 
>>>>>>> post-install scripts to run to completion, before trying to do anything 
>>>>>>> more under Cygwin on your new system.
>>>>>> wow; thanks for quick response. I tried running your first command but got
>>>>>> the message:
>>>>>> awk: fatal: cannot open file ' /etc/setup/installed.db' for reading (No 
>>>>>> such file or directory) >
>>>>>> The file seems to be there and I checked my input so I do not know what 
>>>>>> when wrong. Any suggestions?
>>>>> File name shown is ' /etc/setup/installed.db' - includes a leading space - 
>>>>> do not use any quotes or add spaces in file names - or just paste the 
>>>>> second line at the end of the first line, with an (unquoted) space between 
>>>>> if required.
>>>> ...and remove any \ continuation escape if you paste the lines together - 
>>>> that may well have been your issue!
>>> Another question, if I may: does your procedure install both Fortran and
>>> Dislin which are installed on the T1600? I do not see them in 
>>> cygwin-packages-picked.txt.
>> The Cygwin Fortran package is gcc-fortran (gfortran/f95 symlink): you should 
>> see this unless you have been using a proprietary closed source compiler.
>> It looks like Dislin is a proprietary closed source plotting package which you 
>> will have to find, acquire, install, and configure separately, or migrate 
>> settings from your old system.
> There is a gcc4-fortran listed; so is that OK? And the old 32 bit vs new 64 bit 
> is not a problem?

That will need updated to gcc-fortran - it may have been using an ancient 
package convention - you may have to check and update some package names if 
never upgraded for many years.
Cygwin is a rolling release so if you upgrade using setup at least every year or 
so, when thinsg are quiet, it will avoid you missing out when obsolete packages 
are replaced.

> DISLIN is a free scientific plotting package( They have a 
> download for 64 bit Cygwin so I hope that will work.  Lou

It is not free/libre/open source, and only provides a proprietary no cost 
licence for non-commercial binary download and use, so if you use it in any job, 
you must pay to license use of it for a period of time, or choose a truly free 

The last update on that proprietary package was 18 months ago, so it may no 
longer be actively developed or supported: you should check its mailing list for 
recent activity; its status does not affect its licence.

Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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