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28
AC_DEFINE([HAVE_FREXPL_IN_LIBC], [1],
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[Define if the frexpl function is available in libc.])
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dnl Also check whether it's declared.
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AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [#include <math.h>])
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AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]])