Date: Fri, 18 Sep 2009 17:22:39 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: freebsd-multimedia@FreeBSD.org Cc: Dirk Meyer <dinoex@FreeBSD.org>, Oliver Lehmann <oliver@FreeBSD.org> Subject: Re: libmad mp3 distortions Message-ID: <4AB397AF.4070804@icyb.net.ua> In-Reply-To: <4AAF7604.3070304@icyb.net.ua> References: <4AAF7604.3070304@icyb.net.ua>
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BTW, something that I've noticed while investigating this issue.
During libmad configure stage on amd64:
...
checking host system type... amd64-portbld-freebsd9.0
...
checking for architecture-specific fixed-point math routines... DEFAULT
configure: WARNING: default fixed-point math will yield limited accuracy
...
We do not specify explicit --enable-fpm option.
configure seems to have some auto detection logic, but it won't properly work on
amd64 platform, probably because linux guys call it differently - from configure.ac:
if test -z "$FPM" && test "$GCC" = yes
then
case "$host" in
i?86-*) FPM="INTEL" ;;
arm*-*) FPM="ARM" ;;
mips*-*) FPM="MIPS" ;;
sparc*-*) FPM="SPARC" ;;
powerpc*-*) FPM="PPC" ;;
# FIXME: need to test for 64-bit long long...
esac
fi
On i386 configure auto-picks "INTEL".
--
Andriy Gapon
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