if (unix_mac_pc() ==1 ) {
	system("cd mechanism; nrnivmodl")
	system("cd lib; gcc -o newshiftsyn newshiftsyn.c -Ilib -lm")
	system("export HOC_LIBRARY_PATH=../../template; cd experiment/hyperpolarization-current; sh ./run")
	quit()
}else {
	print "this model currently only runs under unix/linux"
	quit()
}