Re: Optimization in gcc

[Vinod Pathangay <vinod@xxxxxxxxxxxxxxxxxxx>]

SIMPLE: USE YOUE OWN RULE IN THE MAKEFILE LIKE THIS...
-------------------------------
x1:
	 g++ -O2 x1.cpp -o x1
-------------------------------

this should work.....

IM NOT SURE ABT ALL THE OPTIMIZATION FLAGS THOU...

HAVE FUN!



On Sat, 7 Oct 2000, Madhu M. Kurup wrote:

> Hi,
> 
> 	I am stuck with an odd sort of problem and I was wondering if I could get some help. I need to be able to switch on optimizations without using either a makefile or using command line arguments. Is this possible, at all? the problem can be viewed as this. If I ship a file x1.cpp to a user and all he needs to type is
> 	make x1
> make will automatically compile it. Now I want the compiled code to use as many optimizations as it can on the target machine. This is of course the equivalent of doing a
> 	g++ -O2 x1.cpp -o x1
> or something similar. 
> 
> 	If this is possible, my guess is that somewhere in the preprocessor / pragma implementation should have this.
> 
> 	All the searching that I've done is of no avail. Help!
> 
> Cheerio,
> Madhu
>  
>    Madhu M Kurup /* Nemo Me Impune Lacessit */ madhu@xxxxxxxxxxx
> 
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-- 
Vinod

Artificial Neural Networks Lab, 
CSE, IIT Madras