[m-dev.] diff: fix portability problem with `-lm'

[Fergus Henderson]

On 24-Sep-2000, Tyson Dowd <trd at cs.mu.OZ.AU> wrote:
> One more change is needed -- the original diff didn't correctly find a
> maths library because it didn't check for a function defined in that
> library.
...
>  # Check for `-lm': some systems, e.g. MacOS X (Darwin), don't have it.
> -AC_CHECK_LIB(m,[MATH_LIB=-lm],[MATH_LIB=])
> +AC_CHECK_LIB(m, ceil, [MATH_LIB=-lm],[MATH_LIB=])

A slightly better fix for this one is to use AC_HAVE_LIBRARY rather
than AC_CHECK_LIB.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>  |  of excellence is a lethal habit"
PGP: finger fjh at 128.250.37.3        |     -- the last words of T. S. Garp.
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