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30 lines
912 B
Plaintext
30 lines
912 B
Plaintext
# assert-h.m4
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dnl Copyright (C) 2011-2017 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([gl_ASSERT_H],
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[
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ASSERT_H=
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AC_CACHE_CHECK([for static_assert], [gl_cv_static_assert],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <assert.h>
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static_assert (2 + 2 == 4, "arithmetic doesn't work");
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]],
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[[
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static_assert (sizeof (char) == 1, "sizeof doesn't work");
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]])],
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[gl_cv_static_assert=yes],
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[gl_cv_static_assert=no])])
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if test $gl_cv_static_assert = no; then
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ASSERT_H=assert.h
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gl_NEXT_HEADERS([assert.h])
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fi
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AC_SUBST([ASSERT_H])
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AM_CONDITIONAL([GL_GENERATE_ASSERT_H], [test -n "$ASSERT_H"])
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])
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