Fix 1.10

Author: johroj

src/FFTW.jl

@@ -36,7 +36,7 @@ mutable struct FakeLazyLibrary{T}
     on_load_callback::T
     @atomic h::Ptr{Cvoid}
 end
-import Libdl: LazyLibrary, dlopen, dlsym
+import Libdl: LazyLibrary, dlopen
 function dlopen(lib::FakeLazyLibrary{T}) where T
     h = @atomic :monotonic lib.h
     h != C_NULL && return h

src/fft.jl

@@ -2,6 +2,7 @@
 
 import Base: show, *, convert, unsafe_convert, size, strides, ndims, pointer
 import LinearAlgebra: mul!
+import Libdl: dlopen, dlsym
 
 """
     r2r(A, kind [, dims])