how to detect if gdb has been compiled with python support?

[Ofir Cohen]

Hi Maurizio,

Below are to suggestions of how to do it from the shell.


1) Bullet proof method

When python is _not supported:

on Windows:
C:\> gdb --ex "python import os" --batch 2>&1 | findstr Python
C:\>echo %ERRORLEVEL%
Python scripting is not supported in this copy of GDB.
0

On Linux:
~$ gdb --ex "python import os" --batch 2>&1 | grep Python
~$ echo $?
Python scripting is not supported in this copy of GDB.
0

When python _is_ supported, this string will not be printed, and
retval will be 1.


2) Alternative (works only on some platforms)
Note:
on some gdb builds we could execute the following:
"gdb --configuration"

and if gdb was built with Python support, it will print "--with-python=/usr".

However,
This flag, --configuration, isn't recognized for a MinGW 7.6 build on Windows,
though for a gdb 7.7 on Linux it did work.




I would personally use the first version, as it always works
regardless of the switches/flags
gdb is willing to accept.


Regards,
Ofir Cohen

On 21 April 2015 at 05:06, Maurizio Vitale <mrz.vtl@gmail.com> wrote:
> in my gdbinitrc I source python extensions. In my organization we have also
> gdbs compiled without python linked in and I'd like to give a clear message
> about it.
> Any programmatic way to check whether Python is compiled in?
>
> Thanks,
>
>   Maurizio