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2e65b52f8a
This updates Gnulib to v0.0-4219-g84cdd8b. * m4/gnulib-cache.m4: Add `isinf' and `isnan'. * configure.ac: Remove checks for `floatingpoint.h', `ieeefp.h', and `nan.h'. * libguile/gen-scmconfig.c (main): Remove definitions of `SCM_HAVE_FLOATINGPOINT_H', `SCM_HAVE_IEEEFP_H', and `SCM_HAVE_NAN_H'. * libguile/numbers.c (isnan)[SCO && !HAVE_ISNAN]: Remove. (isinf)[SCO && !HAVE_ISINF]: Remove. (xisinf, xisnan): Remove. Change callers to use `isinf' and `isnan'. (guile_ieee_init): Remove the `defined HAVE_ISINF' and `define HAVE_ISNAN' conditions. * libguile/numbers.h: Remove code conditional on `SCM_HAVE_FLOATINGPOINT_H', `SCM_HAVE_IEEEFP_H', or `SCM_HAVE_NAN_H'.
47 lines
1.5 KiB
Text
47 lines
1.5 KiB
Text
# isnan.m4 serial 3
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dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_ISNAN],
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[
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AC_REQUIRE([gl_MATH_H_DEFAULTS])
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AC_REQUIRE([gl_FUNC_ISNANF])
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AC_REQUIRE([gl_FUNC_ISNAND])
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AC_REQUIRE([gl_FUNC_ISNANL])
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# If we replaced any of the underlying isnan* functions, replace
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# the isnan macro; it undoubtedly suffers from the same flaws.
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AC_MSG_CHECKING([whether isnan macro works])
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if test $gl_func_isnanf = yes \
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&& test $gl_func_isnand = yes \
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&& test $gl_func_isnanl = yes; then
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AC_MSG_RESULT([yes])
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ISNAN_LIBM=
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dnl Append $ISNANF_LIBM to ISNAN_LIBM, avoiding gratuitous duplicates.
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case " $ISNAN_LIBM " in
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*" $ISNANF_LIBM "*) ;;
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*) ISNAN_LIBM="$ISNAN_LIBM $ISNANF_LIBM" ;;
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esac
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dnl Append $ISNAND_LIBM to ISNAN_LIBM, avoiding gratuitous duplicates.
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case " $ISNAN_LIBM " in
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*" $ISNAND_LIBM "*) ;;
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*) ISNAN_LIBM="$ISNAN_LIBM $ISNAND_LIBM" ;;
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esac
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dnl Append $ISNANL_LIBM to ISNAN_LIBM, avoiding gratuitous duplicates.
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case " $ISNAN_LIBM " in
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*" $ISNANL_LIBM "*) ;;
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*) ISNAN_LIBM="$ISNAN_LIBM $ISNANL_LIBM" ;;
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esac
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else
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AC_MSG_RESULT([no])
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REPLACE_ISNAN=1
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# Make sure the rpl_isnan[fdl] functions get built.
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gl_BUILD_ISNANF
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gl_BUILD_ISNAND
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gl_BUILD_ISNANL
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ISNAN_LIBM=
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fi
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AC_SUBST([ISNAN_LIBM])
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])
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