Fwd: Problem executing m4 (127 error, but it is installed)

[Eric Blake]

On 08/26/2015 10:11 AM, Kizito Porta Balanyà wrote:
>> Probably a missing dll.  What does:
>>
>> cygcheck m4
>>
>> state?  I'm guessing you may be missing libsigsegv2, which would show up
>> as 'cygcheck: track_down: could not find cygsigsegv-2.dll'?  If so,
>> rerun setup.exe to install it (however, the m4 dependencies should
>> automatically be pulling it in).
> 
> cygcheck returns no error (no missing cygsigsegv-2.dll):

Bummer, then something else is wrong.

> 
> $ cygcheck m4
> Found: C:\Windows\KSR\bin\m4.exe
> Found: C:\Windows\KSR\bin\m4.exe
> C:\Windows\KSR\bin\m4.exe
>   C:\Windows\KSR\bin\cygwin1.dll
...
>   C:\Windows\KSR\bin\cygsigsegv-2.dll

Looks like the executable is fine, then. Maybe it's a virus scanner
interfering, even though you said you've exempted things?  Also, are you
sure you are getting the correct m4?  What does:

$ type m4

say?  What about trying to execute it by absolute path:

$ /bin/m4 --version
$ /cygdrive/c/Windows/KSR/bin/m4 --version

Could it be a collision between a non-executable file named 'm4' vs. the
normal 'm4.exe' that is confusing cygwin .exe magic?  Are you sure that
nothing is messing with PATH and picking up a bogus m4 earlier in the
lookup process?

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 604 bytes
Desc: OpenPGP digital signature
URL: <http://cygwin.com/pipermail/cygwin/attachments/20150826/023746d4/attachment.sig>