diff --git a/Project.toml b/Project.toml
index 7a91244..fa6d2c1 100644
--- a/Project.toml
+++ b/Project.toml
@@ -5,4 +5,5 @@ version = "1.0.0"
 [deps]
 CEnum = "fa961155-64e5-5f13-b03f-caf6b980ea82"
 HYPRE_jll = "0a602bbd-b08b-5d75-8d32-0de6eef44785"
+Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 MPI = "da04e1cc-30fd-572f-bb4f-1f8673147195"
diff --git a/src/HYPRE.jl b/src/HYPRE.jl
index 5b7debd..f6049bc 100644
--- a/src/HYPRE.jl
+++ b/src/HYPRE.jl
@@ -3,6 +3,56 @@ module HYPRE
 module LibHYPRE
     include("../lib/LibHYPRE.jl")
 
+    # Add manual methods for some ::Function signatures where the library wants function
+    # pointers. Instead of creating function pointers to the Julia wrappers we can just look
+    # up the pointer in the library and pass that.
+    # TODO: Maybe this can be done automatically as post-process pass in Clang.jl
+
+    import Libdl: dlsym
+
+    function HYPRE_PCGSetPrecond(solver, precond::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_PCGSetPrecond(solver, precond_ptr, precond_setup_ptr, precond_solver)
+    end
+    function HYPRE_GMRESSetPrecond(solver, precond::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_GMRESSetPrecond(solver, precond_ptr, precond_setup_ptr, precond_solver)
+    end
+    function HYPRE_FlexGMRESSetPrecond(solver, precond::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_FlexGMRESSetPrecond(solver, precond_ptr, precond_setup_ptr, precond_solver)
+    end
+    function HYPRE_LGMRESSetPrecond(solver, precond::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_LGMRESSetPrecond(solver, precond_ptr, precond_setup_ptr, precond_solver)
+    end
+    function HYPRE_COGMRESSetPrecond(solver, precond::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_COGMRESSetPrecond(solver, precond_ptr, precond_setup_ptr, precond_solver)
+    end
+    function HYPRE_BiCGSTABSetPrecond(solver, precond::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_BiCGSTABSetPrecond(solver, precond_ptr, precond_setup_ptr, precond_solver)
+    end
+    function HYPRE_CGNRSetPrecond(solver, precond::Function, precondT::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precondT_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precondT))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_CGNRSetPrecond(solver, precond_ptr, precondT_ptr, precond_setup_ptr, precond_solver)
+    end
+    function HYPRE_LOBPCGSetPrecond(solver, precond::Function, precond_setup::Function, precond_solver)
+        precond_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond))
+        precond_setup_ptr = dlsym(HYPRE_jll.libHYPRE_handle, Symbol(precond_setup))
+        return HYPRE_LOBPCGSetPrecond(solver, precond_ptr, precond_setup_ptr, precond_solver)
+    end
+
+
     # Export everything with HYPRE_ prefix
     for name in names(@__MODULE__; all=true)
         if startswith(string(name), "HYPRE_")