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Re: Specifying a MULTILIB dependency

From: Ian Lance Taylor <iant at google dot com>
To: "Shaun Jackman" <sjackman at gmail dot com>
Cc: gcc at gcc dot gnu dot org
Date: 26 Jun 2006 14:04:36 -0700
Subject: Re: Specifying a MULTILIB dependency
References: <7f45d9390606261305j584122dbh4e3df631be32fd54@mail.gmail.com>

"Shaun Jackman" <sjackman@gmail.com> writes:

> I'm using MULTILIB_OPTIONS and MULTILIB_DIRNAMES to compile a PIC/XIP
> toolchain. I'm familiar with the MULTILIB_EXCEPTIONS mechanism to
> specify incompatible configurations. How, though, do I indicate that
> msingle-pic-base depends on fPIC?
> 
> MULTILIB_OPTIONS    += fPIC
> MULTILIB_DIRNAMES   += pic
> MULTILIB_OPTIONS    += msingle-pic-base
> MULTILIB_DIRNAMES   += xip

The usual hacked up way is to MULTILIB_EXCEPTIONS to remove
-msingle-pic-base without -fPIC.  Something like

MULTILIB_EXCEPTIONS = -msingle-pic-base

might do it.

Ian

Follow-Ups:
- Re: Specifying a MULTILIB dependency
  - From: Shaun Jackman

References:
- Specifying a MULTILIB dependency
  - From: Shaun Jackman

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