flatpak-builder module libdispatch.json

        {
            "name": "libdispatch",
            "buildsystem": "cmake",
            "subdir": "libdispatch",
            "build-options": {
                "env": {
                    "CC": "clang",
                    "CXX": "clang++"
                }
            },
            "config-opts": [
            	"-B../build",
            	"-DCMAKE_BUILD_TYPE=RelWithDebInfo",
            	"-DCMAKE_INSTALL_PREFIX=/usr",
            	"-DBlocksRuntime_INCLUDE_DIR=/usr/include",
            	"-DBlocksRuntime_LIBRARIES=/usr/lib/libBlocksRuntime.so"
            ],
            "build-commands": [
            ],
            "sources": [
                {
                    "type": "git",
                    "url": "https://github.com/apple/swift-corelibs-libdispatch.git",
                    "tag": "swift-5.3-RELEASE",
                    "dest": "libdispatch"
                },
                {
                    "type": "patch",
                    "path": "libdispatch-patches/avoid-libkqueue.patch",
                    "strip-components": 0,
                    "dest": "libdispatch"
                },
                {
                    "type": "patch",
                    "path": "libdispatch-patches/remove-werror.patch",
                    "strip-components": 0,
                    "dest": "libdispatch"
                },
                {
                    "type": "patch",
                    "path": "libdispatch-patches/system-blocksruntime.patch",
                    "strip-components": 0,
                    "dest": "libdispatch"
                }
            ]
        },