[GRASS-dev] compilation error gdal-grass plugin

[Paulo van Breugel]

Hi devs,

I just compiled grass 7.8.3dev (on Ubuntu 18.04) and am now trying to
compile the gdal-grass plugin (gdal-grass-2.4.3).

I am, however, getting the following error message:

```
paulo at Z600:~/Software/Linux/gdal-grass-2.4.3$ make
g++ -Wall -fPIC -DUSE_CPL
-DGRASS_GISBASE=\"/usr/local/grass78/grass78\" -I/usr/include/gdal
-I/usr/local/grass78/grass78/include   -O2  -c -o ogrgrassdriver.o
ogrgrassdriver.cpp
In file included from /usr/local/grass78/grass78/include/grass/vect/digit.h:3:0,
                 from /usr/local/grass78/grass78/include/grass/vector.h:4,
                 from ogrgrass.h:41,
                 from ogrgrassdriver.cpp:29:
/usr/local/grass78/grass78/include/grass/vect/dig_structs.h:31:10:
fatal error: libpq-fe.h: No such file or directory
 #include <libpq-fe.h>
          ^~~~~~~~~~~~
compilation terminated.
Makefile:43: recipe for target 'ogrgrassdriver.o' failed
make: *** [ogrgrassdriver.o] Error 1
paulo at Z600:~/Software/Linux/gdal-grass-2.4.3$
```
Looking for a solution, I find the suggestion to install libpq-dev,
but that library is installed already. Any suggestions what I may do
next?

Regards,

Paulo