How to compile with -ggdb3

[gone_bush]

I have a Qt application that runs on a headless Raspberry Pi. The build environment was built via:

cd <project_dir> mkdir build cd build /usr/lib/qt6/bin/qt-cmake ../src/

and I compile with

cmake -build . -j 4

Q: How can I compile it with gdb fully enabled, ie, with -ggdb3?

[ChrisW67]

First step is to make debug build:

/usr/lib/qt6/bin/qt-cmake -DCMAKE_BUILD_TYPE=Debug ../src/

If you are using a GCC tool chain then this will build your executables with debug symbols that gdb can work with using the -g option:

make VERBOSE=1
...
/usr/bin/c++ -g ...

If you must force the -ggdb optionor the -gn variations then you'll likely have to do that that manually in the CFLAGS and CXXFLAGS.

[gone_bush]

Thx, that's worked - I'll go without the gdb/3 stuff