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Re: ac-lang-compiler-gnu.patch

From: Alexandre Oliva
Subject: Re: ac-lang-compiler-gnu.patch
Date: 12 Oct 2000 16:46:12 -0200
User-agent: Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.1 (Channel Islands)

On Oct 12, 2000, Akim Demaille <address@hidden> wrote:

> There is one thing which needs to be debated: I believe it is OK to
> compile an empty file with GNU compilers, but if I'm wrong, then
> replacing AC_LANG_SOURCE with AC_LANG_PROGRAM should make it.

It depends on the flags given to the compiler.  C and C++ translation
units must contain at least one declaration, but GCC will accept empty
translation units in non-pedantic mode.  With certain flags, it will
just print warnings.  I'd recommend against empty translation units.

Alexandre Oliva   Enjoy Guarana', see
Red Hat GCC Developer                  address@hidden,}
CS PhD student at IC-Unicamp        address@hidden,}
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