On linux, link libstdc++/libgcc into libHalide.so statically
On linux, link libstdc++/libgcc into libHalide.so statically

Should avoid version conflicts in the binary distributions for people
on different systems to mine.


Former-commit-id: 090cf0553b6fa9477d0d2b5bec1e19997dc03b45
darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide