Re: question regarding muliple compilations (for -g vs -O3)

[Marcus G. Daniels]

>>>>> "RLR" == Rick Riolo <address@hidden> writes:

RLR> Now that swarm-1.3 uses a new configure/make process, what is the
RLR> best way to have two swarm compilations, one (the default) with
RLR> -g for debugging), and another (without -g and -O3 say) to run
RLR> smaller and fast?  And of course what I would like is to have
RLR> just one src for both versions.

This is why you shouldn't use --srcdir the same as --prefix.  What
you need to do is have a different location for the source tree,
a build area, and the installed location.  

To the specific question of setting compile-time options, in bourne
shells you can set CFLAGS as below (this exports CFLAGS in the context
of the configure).

$ cd /build-area

$ mkdir swarm-debug
$ cd swarm-debug
$ CFLAGS=-g ./configure --prefix=/usr/local/swarm-debug --srcdir=$SWARMSRCDIR 
...
$ make 
$ make install

$ cd ..
$ mkdir swarm-opt
$ cd swarm-opt
$ CFLAGS=-O3 ./configure --prefix=/usr/local/swarm-opt --srcdir=$SWARMSRCDIR ...
$ make
$ make install




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