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22 lines
723 B
Plaintext
22 lines
723 B
Plaintext
# Test whether O_CLOEXEC is defined.
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dnl Copyright 2017-2019 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_PREPROC_O_CLOEXEC],
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[
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AC_CACHE_CHECK([for O_CLOEXEC],
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[gl_cv_macro_O_CLOEXEC],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[#include <fcntl.h>
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#ifndef O_CLOEXEC
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choke me;
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#endif
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]],
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[[return O_CLOEXEC;]])],
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[gl_cv_macro_O_CLOEXEC=yes],
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[gl_cv_macro_O_CLOEXEC=no])])
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])
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