Date: Mon, 26 Jul 1999 09:35:26 +0200
To: pgcc AT delorie DOT com
Subject: Re: Compling Kernals with PGCC
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In-Reply-To: <001b01bed52c$0c793560$4600a8c0@adgdev02>; from Adam Norton on Fri, Jul 23, 1999 at 11:54:33AM -0500
X-Operating-System: Linux version 2.2.10 (root AT cerebro) (gcc driver version egcs-2.91.66 19990314 (egcs-1.1.2 release) executing gcc version 2.7.2.3) 
From: Marc Lehmann <pcg AT goof DOT com>
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On Fri, Jul 23, 1999 at 11:54:33AM -0500, Adam Norton wrote:
> What are the issues about compliling Linux kernals Xservers etc. with PGCC.
> Will it go out of the box? Or will I get to make changes?

* Newer kernels (2.3.x, but NOT 2.2.x!) already have the necessary fixes to be
  compiled (I have not tried it, though). USe this line in the top Makefile:

  CFLAGS += $(shell if $(CC) -fno-strict-aliasing -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-fno-strict-aliasing"; fi)

* X seems not yet to be ready for the next gcc and pgcc versions. My X is
  fully compiled with pgcc, yet the font libraries are known to break.

* glibc also needs fixes for the next gcc and pgcc version, I recommened to
  use the following cflags until this is done:
  -D__NO_MATH_INLINES -D__NO_STRING_INLINES

All of this is valid for current or soon-to-be-current gcc, egcs and pgcc
versions, not specific to pgcc, which might have additional problems.

> Completely new to Linux so if this is a dumb question forgive me. I know C, C++

The problem is that the answer changes monthly ;->

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