Initial version

deps/build.jl

@@ -0,0 +1,61 @@
+using Libdl
+
+depsfile = joinpath(dirname(@__FILE__),"deps.jl")
+if isfile(depsfile)
+    rm(depsfile)
+end
+
+function write_depsfile(path)
+    open(depsfile,"w") do f
+        print(f,"const libcplex = ")
+        show(f, path) # print with backslashes excaped on windows
+        println(f)
+    end
+end
+
+base_env = "CPLEX_STUDIO_BINARIES"
+const cpxvers = ["128", "1280", "129", "1290"]
+
+libnames = String["cplex"]
+for v in reverse(cpxvers)
+    if Sys.isapple()
+        push!(libnames, "libcplex$v.dylib")
+    elseif Sys.isunix()
+        push!(libnames, "libcplex$v.so")
+        if haskey(ENV, base_env)
+            push!(libnames, joinpath(ENV[base_env], "libcplex$v.so"))
+        end
+    end
+end
+
+const wincpxvers = ["128", "1280", "129", "1290"]
+@static if Sys.iswindows()
+    for v in reverse(wincpxvers)
+        env = base_env * v
+        if haskey(ENV,env)
+            for d in split(ENV[env],';')
+                occursin("cplex", d) || continue
+                if length(v) == 3
+                    push!(libnames,joinpath(d,"cplex$(v)0"))
+                else
+                    push!(libnames,joinpath(d,"cplex$(v)"))
+                end
+            end
+        end
+    end
+end
+
+found = false
+
+for l in libnames
+    d = Libdl.dlopen_e(l)
+    if d != C_NULL
+        global found = true
+        write_depsfile(Libdl.dlpath(d))
+        break
+    end
+end
+
+if !found
+    error("Unable to locate CPLEX installation")
+end