gpu: add functions for traversing the tree branch that is mapped to blocks

[ppcg.git] / m4 / ax_check_openmp.m4

# Check if $CC supports openmp.
AC_DEFUN([AX_CHECK_OPENMP], [
        AC_SUBST(HAVE_OPENMP)
        HAVE_OPENMP=no
        AC_MSG_CHECKING([for OpenMP support by $CC])
        echo | $CC -x c - -fsyntax-only -fopenmp -Werror >/dev/null 2>/dev/null
        if test $? -eq 0; then
                HAVE_OPENMP=yes
        fi
])