Date: Mon, 2 Aug 93 09:49:14 -0400
From: DJ Delorie <dj AT ctron DOT com>
To: Gilles DOT Guyot AT sophia DOT inria DOT fr
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: 

> 	I'am a new user of djgpp and have noticed a very long 
> 	compiling time even for a simple c program of the type "hello.c". 

> 	I guess that gcc don't use extended memory ( lots of disk paging
> 	during compile time ). So is there a specific option to specify
> 	to gcc to use extended memory or does it detects it automatically.

It will automatically use whatever is available, in the following
order:

1. DPMI
2. VCPI (expanded memory)
3. XMS memory (himem.sys)
4. extended memory

The "mem" command can give you an idea of what's available.  Note that
if you're running a disk cache or ramdrive program it may have used up
all the memory.