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Re: compiling glibc with a compiler flag

From: Jakub Jelinek <jakub at redhat dot com>
To: Metuki Sabhe <sabhe dot metuki at gmail dot com>
Cc: libc-alpha at sourceware dot org
Date: Thu, 19 Apr 2007 02:40:24 -0400
Subject: Re: compiling glibc with a compiler flag
References: <549992e50704140152p3e15d233s162480e50fce627e@mail.gmail.com> <549992e50704140154w3edda896w846f98687450b992@mail.gmail.com> <20070414172005.GK1826@sunsite.mff.cuni.cz> <549992e50704172249x589389d9m156e6b99ca120315@mail.gmail.com>
Reply-to: Jakub Jelinek <jakub at redhat dot com>

On Wed, Apr 18, 2007 at 08:49:40AM +0300, Metuki Sabhe wrote:
> If I understand correctly, doing so will override the CFLAGS that were meant
> to be passed originally. How do I know I don't break things ? For example,

The defaults is just "-O2 -g".  Any file that needs special per-source,
per-object file or per-library CFLAGS gets them from CFLAGS-something
variables at the end accumulated on the compiler command lines.

> CFLAGS="-g" ../glibc-2.5/configure
> but during make it shouted it cannot be compiled without optimizations,

Yeah, at least -O or higher is needed to compile glibc.

	Jakub

References:
- compiling glibc with a compiler flag
  - From: Metuki Sabhe
- Re: compiling glibc with a compiler flag
  - From: Jakub Jelinek
- Re: compiling glibc with a compiler flag
  - From: Metuki Sabhe

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