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MULTILIB and GCC

From: Frank Juergen-r58616 <Juergen dot Frank at freescale dot com>
To: crossgcc at sources dot redhat dot com
Date: Wed, 4 Jan 2006 13:44:23 +0100
Subject: MULTILIB and GCC

Hi everybody, 
 
I want to use the multilib feature of GCC but up to now this function isn't clear for me and I wasn't able to find a docu which explains all MULTILIB keywords in detail ...
 
How has good knowledge about this stuff ??
 
I think I understand the MULTILIB_OPTIONS and MULTILIB_DIRNAMES but for which usage are the keywords 
 
MULTILIB_HARDFLOAT_ONLY and MULTILIB_SOFTFLOAT_ONLY  ( founded in RS6000/t-rtems )
 
And I didn't understand the meening of the '*' sign in some rules, e.g.
 
MULTILIB_EXCEPTIONS =  *mcpu=7400/*mspe=no* 
 
what is the different to 
 
MULTILIB_EXCEPTIONS =  mcpu=7400/mspe=no
 
 
 thank you 
 
   Juergen Frank


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