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d216d7d248
* .gitignore: Add lib/ieee754.h. * admin/merge-gnulib (GNULIB_MODULES): Add ieee754-h. * configure.ac: Remove ieee754.h check, as Gnulib now does that. * etc/NEWS: Mention this. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * lib/ieee754.in.h, m4/ieee754-h.m4: New files, from Gnulib. * src/lisp.h (IEEE_FLOATING_POINT): Now a macro so that it can be used in #if. * src/lread.c, src/print.c: Include <ieee754.h> if IEEE_FLOATING_POINT, not if HAVE_IEEE754_H. * src/lread.c (string_to_number): * src/print.c (float_to_string): Process NaNs only on IEEE hosts, and assume <ieee754.h> in that case.
22 lines
658 B
Plaintext
22 lines
658 B
Plaintext
# Configure ieee754-h module
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dnl Copyright 2018 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_IEEE754_H],
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[
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AC_REQUIRE([AC_C_BIGENDIAN])
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AC_CHECK_HEADERS_ONCE([ieee754.h])
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if test $ac_cv_header_ieee754_h = yes; then
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IEEE754_H=
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else
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IEEE754_H=ieee754.h
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AC_DEFINE([_GL_REPLACE_IEEE754_H], 1,
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[Define to 1 if <ieee754.h> is missing.])
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fi
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AC_SUBST([IEEE754_H])
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AM_CONDITIONAL([GL_GENERATE_IEEE754_H], [test -n "$IEEE754_H"])
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])
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