No debugging symbols in gdb even when compiling with -g flag

Question

I am trying to compile my program with debugging symbols for use in gdb. I have added the -g flag to my makefile but I still get \"Reading symbols from ...(no debugging symb

Answer 1

I had the same issue when using a makefile I inherited on some old F77 code. I tried all the flags people recommend (-g -ggdb ...etc.) the solution was run make clean If you don't have that or know what it means, basically delete all the compiled (.o) files.

the makefile didn't know to recompile since only flags were changed, so I wasn't actually compiling with -g or -ggdb when I thought it was. Hope this helps someone!