fail to make when use 'make -j'

[cloudaice]

i built openresty ngx_openresty-1.2.4.14 on my osx 10.8.1
but when use make -j the error info like this:

make[2]: gcc: Resource temporarily unavailable
gcc -c -pipe -O -W -Wall -Wpointer-arith -Wno-unused-parameter -g -I/usr/local/Cellar/pcre/8.31/include -DNDK_SET_VAR -DNDK_UPSTREAM_LIST -DNDK_SET_VAR -DNDK_SET_VAR -DNDK_SET_VAR -DLUA_DEFAULT_PATH='"/usr/local/openresty/lualib/?.lua;/usr/local/openresty/lualib/?/init.lua"' -DLUA_DEFAULT_CPATH='"/usr/local/openresty/lualib/?.so"' -DNDK_SET_VAR -I src/core -I src/event -I src/event/modules -I src/http -I src/http/modules -I src/os/unix -I ../ngx_devel_kit-0.2.17/objs -I objs/addon/ndk -I /Users/xiangchao/Downloads/ngx_openresty-1.2.4.14/build/luajit-root/usr/local/openresty/luajit/include/luajit-2.0 -I ../ngx_lua-0.7.9/src/api -I objs
-o objs/ngx_modules.o
objs/ngx_modules.c
make[2]: gcc: Resource temporarily unavailable
make[2]: *** wait: No child processes. Stop.
make[2]: *** Waiting for unfinished jobs....
make[2]: *** wait: No child processes. Stop.
make[1]: *** [build] Error 2
make: *** [all] Error 2

it seems that more process to built it case an error ...

[agentzh]

Hello!

On Tue, Jan 8, 2013 at 11:06 AM, 项超 notifications@github.com wrote:

i built openresty ngx_openresty-1.2.4.14 on my osx 10.8.1
but when use make -j the error info like this:

make[2]: gcc: Resource temporarily unavailable

When Gnu make is invoked with the -j option without an integer parameter,
Gnu make will spawn parallel job workers as many as possible, easily
exhausting your system resources, as demonstrated above.

Basically, if your system has N CPU cores, you should specify -j N or -j
(N+1), for example, in case of a dual core CPU:

make -j2

or

make -j3

Best regards,
-agentzh

[cloudaice]

thank you very much 。I know make with -j option will spawn parallel job as many as possible . it can make ti runs more faster . while i built other software with -j ,it aways ok 。Now I realize it is a bad habit . thanks for your advice!!!