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8f4b6a20bf
This incorporates: 2016-09-15 stdint: support new _WIDTH macros 2016-09-15 limits-h: new module 2016-09-15 sys_types: avoid glibc 2.25 warnings about major() 2016-09-15 extensions: port to more ISO C TSes 2016-09-13 intprops: new macro TYPE_WIDTH 2016-09-13 extensions: port to recent ISO C TRs * .gitignore: Add lib/limits.h. * doc/misc/texinfo.tex, lib/ftoastr.h, lib/intprops.h: * lib/stdint.in.h, m4/extensions.m4, m4/stdint.m4, m4/stdio_h.m4: * m4/sys_types_h.m4: Copy from gnulib. * lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate. * lib/limits.in.h, m4/limits-h.m4: New files, copie from gnulib. * nt/gnulib.mk: Merge changes from lib/gnulib.mk.
30 lines
941 B
Plaintext
30 lines
941 B
Plaintext
dnl Check whether limits.h has needed features.
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dnl Copyright 2016 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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dnl From Paul Eggert.
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AC_DEFUN_ONCE([gl_LIMITS_H],
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[
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gl_CHECK_NEXT_HEADERS([limits.h])
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AC_CACHE_CHECK([whether limits.h has ULLONG_WIDTH etc.],
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[gl_cv_header_limits_width],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[#define __STDC_WANT_IEC_60559_BFP_EXT__ 1
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#include <limits.h>
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int ullw = ULLONG_WIDTH;]])],
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[gl_cv_header_limits_width=yes],
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[gl_cv_header_limits_width=no])])
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if test "$gl_cv_header_limits_width" = yes; then
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LIMITS_H=
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else
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LIMITS_H=limits.h
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fi
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AC_SUBST([LIMITS_H])
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AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"])
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])
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