configure.ac, defensive use of `AC_OPENMP'
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@ -991,7 +991,7 @@ AC_ARG_ENABLE([openmp],
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# Add OpenMP to ngspice.
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: ${enable_openmp:=no}
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AC_OPENMP
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m4_ifdef([AC_OPENMP], [AC_OPENMP])
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if test "x$enable_openmp" = xyes; then
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AC_DEFINE([USE_OMP], [1], [OpenMP parallel processing])
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