Add Compat to finally get 0.6/0.7 compat write

Author: quinnj

REQUIRE

@@ -1,2 +1,3 @@
 julia 0.6
+Compat 0.40.0
 BinDeps

src/DecFP.jl

@@ -1,4 +1,15 @@
 module DecFP
+
+using Compat
+
+if !(VERSION < v"0.7.0-DEV.3026")
+    using Printf
+end
+
+if !(VERSION < v"0.7.0-DEV.2813")
+    using Unicode
+end
+
 export Dec32, Dec64, Dec128, @d_str, @d32_str, @d64_str, @d128_str
 
 const libbid = joinpath(dirname(@__FILE__), "..", "deps", "libbid$(Sys.WORD_SIZE)")
@@ -8,22 +19,6 @@ const _buffer = fill(0x00, 1024)
 import Base.promote_rule
 import Base.Grisu.DIGITS
 
-# https://github.com/JuliaLang/julia/pull/20005
-if VERSION < v"0.7.0-DEV.896"
-    Base.InexactError(name::Symbol, T, val) = InexactError()
-end
-
-# https://github.com/JuliaLang/julia/pull/22751
-if VERSION < v"0.7.0-DEV.924"
-    Base.DomainError(val) = DomainError()
-    Base.DomainError(val, msg) = DomainError()
-end
-
-# https://github.com/JuliaLang/julia/pull/222761
-if VERSION < v"0.7.0-DEV.1285"
-    Base.OverflowError(msg) = OverflowError()
-end
-
 # global pointers and dicts must be initialized at runtime (via __init__)
 function __init__()
     global const rounding = cglobal((:__bid_IDEC_glbround, libbid), Cuint) # rounding mode
@@ -226,7 +221,7 @@ for w in (32,64,128)
         end
     end
 
-    for c in (:π, :e, :γ, :catalan, :φ)
+    for c in (:π, :e, :ℯ, :γ, :catalan, :φ)
         @eval begin
             Base.convert(::Type{$BID}, ::Irrational{$(QuoteNode(c))}) = $(_parse(T, setprecision(256) do
                                                                                       string(BigFloat(isdefined(Base, :MathConstants) ? eval(Base.MathConstants, c) : eval(c)))

test/runtests.jl

@@ -1,5 +1,16 @@
 using DecFP
-using Base.Test
+
+@static if VERSION < v"0.7.0-DEV.2005"
+    using Base.Test
+else
+    using Test
+end
+if !(VERSION < v"0.7.0-DEV.3026")
+    using Printf
+end
+if !(VERSION < v"0.7.0-DEV.1592")
+    using Base.MathConstants
+end
 
 @test unsafe_load(DecFP.flags) == 0