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19 lines
480 B
Plaintext
19 lines
480 B
Plaintext
#serial 3
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dnl Copyright (C) 2002, 2005 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_FUNC_DUP2],
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[
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AC_REPLACE_FUNCS(dup2)
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if test $ac_cv_func_dup2 = no; then
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gl_PREREQ_DUP2
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fi
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])
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# Prerequisites of lib/dup2.c.
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AC_DEFUN([gl_PREREQ_DUP2], [
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AC_CHECK_HEADERS_ONCE(unistd.h)
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])
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