Re: -lm not required when including functions from math.h

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To: Harvey Muller <hlmuller@xxxxxxxxx>, GCC-help <gcc-help@xxxxxxxxxxx>
Subject: Re: -lm not required when including functions from math.h
From: Eljay Love-Jensen <eljay@xxxxxxxxx>
Date: Fri, 27 Jun 2008 12:06:32 -0500
In-reply-to: <887206.19635.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
User-agent: Microsoft-Entourage/12.10.0.080409

Hi Harvey,

Some math functions are built into the compiler.

Some math functions are macros in the math.h header.

Some platforms include -lm (or the analogous equivalent) for you.

HTH,
--Eljay

References:
- -lm not required when including functions from math.h
  - From: Harvey Muller

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