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AM_ENABLE_MULTILIB: Allow switching the default
From: |
Ralf Corsepius |
Subject: |
AM_ENABLE_MULTILIB: Allow switching the default |
Date: |
16 Jul 2003 08:49:35 +0200 |
Hi,
another multilib related patch to allow switching the default of
AM_ENABLE_MULTILIB.
Background: The current default of AM_ENABLE_MULTILIB is to build
multilibs. This is OK for gcc/binutils/newlib etc., but is unsafe in
general otherwise, because config-ml.in internally assumes using gcc
with multilib support.
I.e. building packages using AM_ENABLE_MULTILIB will almost certainly
fail to build if not using gcc. Furthermore, building with multilibs
enabled can dramatically increase compilation times (One gcc variant I
use applies ca. 30 multilib variants - 30 times the compilation time of
non-multilib'ed builds)
I therefore prefer using a default of "no".
[May-be we should consider adding a check for "$(CC) -print-multi-lib"
and conditionally disable invoking config-ml.in based on this check.
Conditionalizing this calling config-ml.in based on test -n "$GCC" is
not enough, because older gccs do not support multilibs.]
Ralf
automake-rc-20030715-2.diff
Description: Text document
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