[Bug] Create new vector map fails in GUI (main)

[dhdeangelis]

Describe the bug

Using the GUI, "create new vector map" fails with error below:

Traceback (most recent call last):
  File
"/usr/local/grass85/gui/wxpython/main_window/frame.py", line
1596, in OnNewVector
    dlg = CreateNewVector(
        self, giface=self._giface, cmd=(("v.edit", {"tool":
"create"}, "map"))
    )
  File
"/usr/local/grass85/gui/wxpython/gui_core/dialogs.py", line
466, in CreateNewVector
    vExternalOut = grass.parse_command("v.external.out",
flags="g")
  File "/usr/local/grass85/etc/python/grass/script/core.py",
line 747, in parse_command
    res = read_command(*args, **kwargs)
  File "/usr/local/grass85/etc/python/grass/script/core.py",
line 690, in read_command
    return handle_errors(returncode, stdout, args, kwargs)
  File "/usr/local/grass85/etc/python/grass/script/core.py",
line 470, in handle_errors
    raise exception(module, code, returncode=returncode,
errors=stderr)
grass.exceptions.CalledModuleError: Module run
`v.external.out -g` ended with an error.
The subprocess ended with a non-zero return code: 1. See
errors above the traceback or in the error output.

To reproduce

1. Go to 'Create new vector map'
2. See error

System description

System Info
GRASS version: 8.5.0dev
Code revision: 189c5a4
Build date: 2025-12-06
Build platform: x86_64-pc-linux-gnu
GDAL: 3.13.0dev-c959ec2724-dirty
PROJ: 9.8.0
GEOS: 3.15.0dev
SQLite: 3.51.1
Python: 3.13.9
wxPython: 4.2.3
Platform: Linux-6.18.0-1-default-x86_64-with-glibc2.42

python3 -c "import sys, wx; print(sys.version); print(wx.version())"
3.13.9 (main, Nov 23 2025, 01:32:31) [GCC]
4.2.3 gtk3 (phoenix) wxWidgets 3.2.8

[dhdeangelis]

I notice that v.external and v.external.out are not being built. No errors are being reported during the build.

Perhaps something went wrong in #6671 ?

[tmszi]

I can't reproduce it with my OS libs configuration (GRASS GIS compilation was successful):

System info:

GRASS version: 8.5.0dev                                                         
Code revision: e0f2da532b                                                       
Build date: 2025-12-07                                                          
Build platform: x86_64-pc-linux-gnu                                             
GDAL: 3.9.3                                                                     
PROJ: 9.4.1                                                                     
GEOS: 3.13.0                                                                    
SQLite: 3.50.4                                                                  
Python: 3.13.5                                                                  
wxPython: 4.2.3                                                                 

v.external and v.external.out module is available.

GRASS nc_basic_spm_grass7/PERMANENT:~ > which v.external.out v.external
/usr/lib64/grass85/bin/v.external.out
/usr/lib64/grass85/bin/v.external

[nilason]

I notice that v.external and v.external.out are not being built. No errors are being reported during the build.

Perhaps something went wrong in #6671 ?

Yes, previously the modules were built if either GDAL or PostgreSQL was enabled, which always was true (because GDAL is required). After #6671 it will only build if PostgreSQL is enabled. I will provide a fix for this as soon as I can tomorrow.