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19 lines
470 B
19 lines
470 B
4 months ago
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dnl SPDX-License-Identifier: GPL-2.0-or-later
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dnl Copyright (c) Linux Test Project, 2016
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AC_DEFUN([LTP_CHECK_SYNC_ADD_AND_FETCH],[
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AC_MSG_CHECKING([for __sync_add_and_fetch])
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AC_LINK_IFELSE([AC_LANG_SOURCE([
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int main(void) {
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int i = 0;
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return __sync_add_and_fetch(&i, 1);
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}])],[has_saac="yes"])
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if test "x$has_saac" = xyes; then
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AC_DEFINE(HAVE_SYNC_ADD_AND_FETCH,1,[Define to 1 if you have __sync_add_and_fetch])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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])
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