+ nanosleep_save_libs=$LIBS
+
+ # Solaris 2.5.1 needs -lposix4 to get the nanosleep function.
+ # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
+ AC_SEARCH_LIBS([nanosleep], [rt posix4],
+ [test "$ac_cv_search_nanosleep" = "none required" ||
+ LIB_NANOSLEEP=$ac_cv_search_nanosleep])
+ AC_SUBST([LIB_NANOSLEEP])
+