Preventing Cygwin from picking up MinGW as host system

[Ilmari Lauhakangas]

On 30.1.2022 10.34, Ilmari Lauhakangas wrote:
> On 29.1.2022 16.22, Ilmari Lauhakangas wrote:
>> So this beautiful annoyance came up during an email-driven 
>> troubleshooting session:
>>
>> checking build system type... x86_64-pc-cygwin
>> checking host system type... x86_64-pc-mingw32
>>
>> and over a dozen mingw-related hits before erroring out on libassuan:
>>
>>          Libassuan v has been configured as follows:
>>
>>          Revision:   ()
>>          Platform: x86_64-pc-mingw32
>>
>> Making all in m4
>> Making all in src
>> mkheader.c
>> usage: mkheader host_os template.h version version_number
>> make[4]: *** [Makefile:1339: assuan.h] Error 1
>> make[3]: *** [Makefile:462: all-recursive] Error 1
>> make[2]: *** [Makefile:394: all] Error 2
>> make[1]: *** 
>> [D:/libre/lode/dev/core/external/libassuan/ExternalProject_libassuan.mk:26: 
>> D:/libre/lode/dev/core/workdir/ExternalProject/libassuan/build] Error 1
>> make[1]: *** Waiting for unfinished jobs....
>> make: *** [Makefile:299: build] Error 2
>>
>> Would be tempting to just uninstall MinGW, but the newcomer needs it 
>> for other stuff. How can we teach Cygwin to ignore MinGW?
> 
> Now I hear this has been solved, but the newcomer is unable to explain 
> how exactly.

Thought about this harder and looked at our exchange again and the 
reason was that the paths in their .bash_profile were not correct and 
this was causing MinGW to be picked up as host system.

Ilmari