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17 lines
383 B
17 lines
383 B
dnl based on http://www.gnu.org/software/ac-archive/htmldoc/ac_check_cc_opt.html
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dnl from Guido Draheim <guidod@gmx.de>
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AC_DEFUN([AC_CHECK_CXX_FLAG],
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[AC_MSG_CHECKING([whether ${CXX} accepts $1])
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echo 'int main(){}' > conftest.c
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if test -z "`${CXX} $1 -o conftest conftest.c 2>&1`"; then
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$2="${$2} $1"
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echo "yes"
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else
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echo "no"
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$3
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fi
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dnl echo "$2=${$2}"
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rm -f conftest*
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])
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