On Fri, Jan 3, 2014 at 5:05 PM, Mohamed Horani <[email protected]> wrote: > i couldn't determine the beginning and the end of the source file so it was > a bad start for me. > i wanna a clue how to start reading the source package of GNU Make ?!
Look for the function main(). And/or single-step through it with a debugger until you see what's going on. > Second i noticed the source package written in multi-programming language > e.g. m4 files something looks like that > > isnt it written purely in C programming language ?! The .m4 files are just for its build system. They help detect and adapt to the system you're building make on. See http://en.wikipedia.org/wiki/Autoconf but you can just ignore them for now. > Third there is an option -j so i can compile most of packages in parallel ? > > Where i can find the -j option code in the source file ?! $ make --help | grep j -j [N], --jobs[=N] N Aufträge auf einmal zulassen; ohne Argument unendlich viele Aufträge. $ grep -R -C 1 '"jobs"' . ./main.c- { 'j', positive_int, (char *) &job_slots, 1, 1, 0, (char *) &inf_jobs, ./main.c: (char *) &default_job_slots, "jobs" }, ./main.c- { CHAR_MAX+2, string, (char *) &jobserver_fds, 1, 1, 0, 0, 0, $ grep -R -l job_slots . ./ChangeLog ./job.h ./main.c ./vmsjobs.c ./make.h ./remote-cstms.c ./commands.c ./job.c ./remake.c Does that help? - Dan _______________________________________________ Help-make mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-make
