Makefile problems/

[vedro-compota]

Hi guys!
In my makefile I have line -

gcc -Wall parent.c errmsg.o -o parent

What does it mean "Wall" here ?
big thanks in advance)

[masijade]

try "man gcc" or google for gcc documentation.

[vedro-compota]

ok...

[vedro-compota]

this's Option which the manage alerts.
http://gcc.gnu.org/onlinedocs/gcc-4.6.0/gcc/Warning-Options.html#Warning-Options