On 11. 5. 2015 13:34, David Macek wrote: > On 11. 5. 2015 9:50, Rainer Schuetz wrote: > Anyway, I'll try to find time to try cmake with Bitvise. It's possible their > sshd is doing something MSYS2 doesn't like.
With Rainer's help on IRC, I isolated the issue to 32-bit apps launched from 64-bit Cygwin/MSYS2 inside a SSH session using Bitvise SSH Server. I haven't checked what happens with 32-bit Cygwin, but the issue certainly doesn't manifest when running 64-bit apps from 64 Cygwin (through Bitvise SSHd), nor when running any apps from bare cmd (through Bitvise SSHd), nor -- as noted previously -- when using Cygwin/MSYS2 sshd. I've investigated a bit, but I couldn't find any solution. Most of what I've found out is summarized in a support ticket I filed with Bitvise, available on <https://fogbugz.bitvise.com/default.asp?21576_b1prhdqr>. Transcript follows. === Dear Mr or Mrs, I found an issue with Cygwin and Bitvise SSHd and I was wondering if you could help me somehow. The way to reproduce the issue is: 1. install 64-bit Cygwin 2. install Bitvise SSH Server 3. connect through SSH to this server 4. run Cygwin inside this SSH session (C:\cygwin64\bin\bash --login -i) 5. run a 32-bit process from inside this Cygwin session (such as /cygdrive/c/windows/syswow64/cmd) The resulting process is almost clear of environment variables (I'd say that it is completely clear upon start, but then the process itself adds some variables of its own). According to procmon, it seems that the original process exits or crashes immediately and it is then re-started from the toterm* helper process (which runs with a clean environment and apparently doesn't override the environment when creating the child process). I'd be happy if you could look into this issue. I can provide more information regarding Cygwin, if needed. Looking forward to hearing from you. -- David Macek
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