Wed Feb 9 01:46:07 GMT 2022
On 2022-02-08 15:01, firstname.lastname@example.org wrote:
> Cygwin doesn't create an environment variable in bash to indicate that the
> platform is Cygwin under Windows.
> This causes compatibility problems when running various tools. Most of my
> issues have been with Python tools running Windows Python.
> I have been addressing this issue by grepping PATH for cygdrive which
> doesn't seem like a very good approach.
> Both msys2 and mingw solve this issue by setting the MSYSTEM environment
> variable which lets tools check that OS=Windows_NT and MSYSTEM=MSYS
> Please add some way of identifying that programs are running under Cygwin.
I have been switching env/OS/arch/triple dependent profile and rc files
and sections for years with:
64 $ echo $OSTYPE $OS $HOSTTYPE $MACHTYPE
cygwin Windows_NT x86_64 x86_64-unknown-cygwin
32 $ echo $OSTYPE $OS $HOSTTYPE $MACHTYPE
cygwin Windows_NT i686 i686-pc-cygwin
Please note that *only* $OS is exported by default (in the above list),
so you will have to explicitly export (in profiles) any other shell
variables you wish to be available to shell subprocesses.
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
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