Make DiffEqProblemLibrary repeat safe

Author: YingboMa

src/DiffEqProblemLibrary.jl

@@ -3,23 +3,28 @@ __precompile__(true)
 module DiffEqProblemLibrary
 
 module ODEProblemLibrary
-importodeproblems() = include(joinpath(@__DIR__, "ode/ode_premade_problems.jl"))
+importodeproblems() =
+@isdefined(prob_ode_linear) || include(joinpath(@__DIR__, "ode/ode_premade_problems.jl"))
 end # module
 
 module DAEProblemLibrary
-importdaeproblems() = include(joinpath(@__DIR__, "dae_premade_problems.jl"))
+importdaeproblems() =
+@isdefined(prob_dae_resrob) || include(joinpath(@__DIR__, "dae_premade_problems.jl"))
 end # module
 
 module DDEProblemLibrary
-importddeproblems() = include(joinpath(@__DIR__, "dde_premade_problems.jl"))
+importddeproblems() =
+@isdefined(prob_dde_1delay) || include(joinpath(@__DIR__, "dde_premade_problems.jl"))
 end # module
 
 module SDEProblemLibrary
-importsdeproblems() = include(joinpath(@__DIR__, "sde_premade_problems.jl"))
+importsdeproblems() =
+@isdefined(prob_sde_wave) || include(joinpath(@__DIR__, "sde_premade_problems.jl"))
 end # module
 
 module JumpProblemLibrary
-importjumpproblems() = include(joinpath(@__DIR__, "jump_premade_problems.jl"))
+importjumpproblems() =
+@isdefined(prob_jump_dnarepressor) || include(joinpath(@__DIR__, "jump_premade_problems.jl"))
 end # module
 
 end # module