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Article #787

gcc 1.36 always uses software floating-point math libraries

#787
From: Georg Feil
Date: Mon, 13 Nov 1989 20:23
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On a sun3 with OS 4.0.1, gcc 1.36 always links the default libm.a if you
specify -lm even when the 68881 or FPA are being used. To fix this, the 
definition of LIB_SPEC in config/tm-sun3.h should include a -L option
as follows:

    for -msoft-float,   add  -L/usr/lib/fsoft  to LIB_SPEC
    for -m68881     ,   add  -L/usr/lib/f68881 to LIB_SPEC
    for -mfpa       ,   add  -L/usr/lib/ffpa   to LIB_SPEC

Otherwise users must remember to enter the correct -L specification
each time they compile a program that uses the math lib.

Georg.
-- 
Georg Feil                                            "The roof is leaking
ghfeil@white.toronto.edu                               and the wind is howling"
...if that doesn't work try one of:
{uunet,pyramid,watmath,utzoo}!utcsri!white!ghfeil
ghfeil%white.toronto.edu@relay.cs.net     (ARPA)
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Newsgroups: gnu.gcc.bug
From: ghfeil@white.toronto.edu (Georg Feil)
Subject: gcc 1.36 always uses software floating-point math libraries
Message-ID: <89Nov13.152230est.30802@snow.white.toronto.edu>
Sender: <daemon>
Organization: University of Toronto, CSRI
Date: 13 Nov 89 20:23:06 GMT