Merge pull request #31764 from adisbladis/libmsgpack-gcc7

Libmsgpack gcc7 fixes

pkgs/development/libraries/libmsgpack/1.4.nix

···
-{ callPackage, fetchFromGitHub, ... } @ args:
-
-callPackage ./generic.nix (args // rec {
-  version = "1.4.2";
-
-  src = fetchFromGitHub {
-    owner = "msgpack";
-    repo = "msgpack-c";
-    rev = "cpp-${version}";
-    sha256 = "0zlanifi5hmm303pzykpidq5jbapl891zwkwhkllfn8ab1jvzbaa";
-  };
-})

pkgs/development/libraries/libmsgpack/2.0.nix

···
-{ callPackage, fetchFromGitHub, ... } @ args:
-
-callPackage ./generic.nix (args // rec {
-  version = "2.0.0";
-
-  src = fetchFromGitHub {
-    owner  = "msgpack";
-    repo   = "msgpack-c";
-    rev    = "cpp-${version}";
-    sha256 = "189m44pwpcpf7g4yhzfla4djqyp2kl54wxmwfaj94gwgj5s370i7";
-  };
-})

pkgs/top-level/all-packages.nix

···
   libmtp = callPackage ../development/libraries/libmtp { };
 
   libmsgpack = callPackage ../development/libraries/libmsgpack { };
-  libmsgpack_2_0 = callPackage ../development/libraries/libmsgpack/2.0.nix { };
-  libmsgpack_1_4 = callPackage ../development/libraries/libmsgpack/1.4.nix { };
 
   libmysqlconnectorcpp = callPackage ../development/libraries/libmysqlconnectorcpp {
     mysql = mysql57;