make kokkos configuration keywords in traditional build case insensitive

# Options: enable_async_dispatch

KOKKOS_HPX_OPTIONS ?= ""

# Helper functions for conversion to upper case

uppercase_TABLE:=a,A b,B c,C d,D e,E f,F g,G h,H i,I j,J k,K l,L m,M n,N o,O p,P q,Q r,R s,S t,T u,U v,V w,W x,X y,Y z,Z

uppercase_internal=$(if $1,$$(subst $(firstword $1),$(call uppercase_internal,$(wordlist 2,$(words $1),$1),$2)),$2)

uppercase=$(eval uppercase_RESULT:=$(call uppercase_internal,$(uppercase_TABLE),$1))$(uppercase_RESULT)

# Return a 1 if a string contains a substring and 0 if not

# Note the search string should be without '"'

# Example: $(call kokkos_has_string,"hwloc,librt",hwloc)

#   Will return a 1

kokkos_has_string=$(if $(findstring $2,$1),1,0)

kokkos_has_string=$(if $(findstring $(call uppercase,$2),$(call uppercase,$1)),1,0)

# Returns 1 if the path exists, 0 otherwise

# Example: $(call kokkos_path_exists,/path/to/file)

#   Will return a 1 if /path/to/file exists