By default the Makefile Package does not tell the compiler to generate debugging information when compiling Objective-C and C files. The following command illustrates how to tell the Makefile Package to pass the appropriate flags to the compiler so that debugging information is put into the binary files.
make debug=yes
When debugging is turned on, the Makefile Package turns off optimization so the user must override the optimization flag when running make if both debugging information and optimization is to be performed by the compiler. Use the variable OPTFLAG to override the optimization flag.