...
make maingemdm
or
make -j4 maingemdm
When compiling this routine now you should see something like the following:
| Volet |
|---|
| Building Fortran object src/rpnphy/CMakeFiles/phy.dir/utils/sfclayer_mod.F90.o ... -O2 -g -O0 -c |
The second '-O0' should overwrite the first '-O2'.