libtool with mingw hangs building openocd in func_convert_core_msys_to_w32

[Dietmar May]

Jonathan Yong is correct - removing --build allows make to complete 
without error using the unmodified ltmain.sh

There's still the issue of generating a call to cmd.exe with an invalid 
switch (//c), which will cause it to hang indefinitely if ever invoked.

The risk of breaking anything by fixing this seems like nil.
------------------------------------------------------------------------
On 6/26/2021 3:17 PM, Brian Inglis wrote:
> On 2021-06-25 14:46, Dietmar May via Cygwin wrote:
>> The build completes successfully by replacing the "cmd /c | sed" 
>> construct with simply:
>>
>> func_convert_core_msys_to_w32_result=$1
>>
>> so no path translation takes place.
>>
>> The function then becomes:
>>
>> func_convert_core_msys_to_w32 ()
>> {
>>    $debug_cmd
>>
>> func_convert_core_msys_to_w32_result=$1
>>
>> }
>
>>> SUMMARY
>>>
>>> func_convert_core_msys_to_w32 in
>>>
>>> /usr/share/libtool/build-aux/ltmain.sh
>>>
>>> has an extraneous '/' in the call to
>>>
>>> ( cmd //c echo "$1" )
>>>
>>> causing make to hang indefinitely
>>>
>>> when configured with
>>>
>>> --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32
>
> Which you don't need to change if you configure properly, as JonY 
> replied on the list to your earlier post:
>
> On 2021-06-25 09:27, Jonathan Yong via Cygwin wrote:
>  >
>  > Don't set --build, you are building on Cygwin, not MSYS.
>