Big amount of RAM used when building 1.1.16

[Cyril LAVIER]

Hi.

With the last release (1.1.16), I remarked the build process is taking 
a lot of RAM, ranging from 1800MB to 3500-4000MB.

Thanks my main build machine has 16GB of RAM, but my mips and mipsel 
build machines (QEMU VMs) only have 256MB of RAM. So the systems went on 
to crash with an oomkiller. So to be able to build it, I added up to 4GB 
of swap space.

I remarked this issue in the following architectures : x86 (32 and 64 
bits), powerpc, armel, armhf, mips and mipsel (all the architectures I 
currently use).

It occurs for every flavor of the Debian package (light, full and 
extras) and the memory usage starts to grow when building 
objs/ngx_modules.c like here with nginx-full : gcc -c -Wall -g -O2 -I 
src/core -I src/event -I src/event/modules -I src/os/unix -I 
/usr/include/libxml2 -I objs -o objs/ngx_modules.o objs/ngx_modules.c

A table summing up the modules present in every nginx flavour is 
available here : http://wiki.debian.org/Nginx

So for the moment, this issue is blocking a build in the debian 
buildds, and may block many others.

I'm available to do more tests and provide more information if needed.

Thanks.

-- 
Cyril "Davromaniak" Lavier
KeyID 59E9A881
http://www.davromaniak.eu