Add SuiteSparse

Author: ararslan

README.md

@@ -104,6 +104,9 @@ Currently, the `@compat` macro supports the following syntaxes:
 * `using Compat.IterativeEigensolvers` is provided on versions older than 0.7, where this
   library is not yet a part of the standard library. ([#24714])
 
+* `using Compat.SuiteSparse` is provided on versions older than 0.7, where this library is
+  not yet part of the standard library ([#24648]).
+
 ## New functions, macros, and methods
 
 * `@views` takes an expression and converts all slices to views ([#20164]), while
@@ -397,6 +400,7 @@ includes this fix. Find the minimum version from there.
 [#24459]: https://github.com/JuliaLang/julia/issues/24459
 [#24605]: https://github.com/JuliaLang/julia/issues/24605
 [#24647]: https://github.com/JuliaLang/julia/issues/24647
+[#24648]: https://github.com/JuliaLang/julia/issues/24648
 [#24652]: https://github.com/JuliaLang/julia/issues/24652
 [#24657]: https://github.com/JuliaLang/julia/issues/24657
 [#24714]: https://github.com/JuliaLang/julia/issues/24714

src/Compat.jl

@@ -781,6 +781,17 @@ else
     import IterativeEigensolvers
 end
 
+if VERSION < v"0.7.0-DEV.2609"
+    @eval module SuiteSparse
+        if Base.USE_GPL_LIBS
+            using Base.SparseArrays: CHOLMOD, SPQR, UMFPACK
+        end
+        using Base.SparseArrays: increment, increment!, decrement, decrement!
+    end
+else
+    import SuiteSparse
+end
+
 # 0.7.0-DEV.1993
 @static if !isdefined(Base, :EqualTo)
     if VERSION >= v"0.6.0"

test/runtests.jl

@@ -922,6 +922,14 @@ module Test24714
     @test isdefined(@__MODULE__, :svds)
 end
 
+# 0.7
+module Test24648
+    using Compat
+    using Compat.Test
+    using Compat.SuiteSparse
+    @test isdefined(@__MODULE__, :SuiteSparse)
+end
+
 let a = [0,1,2,3,0,1,2,3]
     @test findfirst(equalto(3), [1,2,4,1,2,3,4]) == 6
     @test findfirst(!equalto(1), [1,2,4,1,2,3,4]) == 2