Add extension rdkafka support

config/ext.json

@@ -385,6 +385,15 @@
             "libssh2"
         ]
     },
+    "rdkafka": {
+        "type": "external",
+        "source": "ext-rdkafka",
+        "arg-type": "custom",
+        "cpp-extension": true,
+        "lib-depends": [
+            "librdkafka"
+        ]
+    },
     "swoole": {
         "type": "external",
         "source": "swoole",

config/lib.json

@@ -420,6 +420,18 @@
     "pkg-config": {
         "source": "pkg-config"
     },
+    "librdkafka": {
+        "source": "librdkafka",
+        "static-libs-unix": [
+            "librdkafka.a",
+            "librdkafka++.a",
+            "librdkafka-static.a"
+        ],
+        "lib-depends": [
+            "openssl",
+            "zlib"
+        ]
+    },
     "postgresql": {
         "source": "postgresql",
         "static-libs-unix": [

config/source.json

@@ -42,6 +42,23 @@
             "path": "COPYING"
         }
     },
+    "librdkafka": {
+        "type": "ghtar",
+        "repo": "confluentinc/librdkafka",
+        "license": {
+            "type": "file",
+            "path": "LICENSE"
+        }
+    },
+    "ext-rdkafka": {
+        "type": "ghtar",
+        "repo": "arnaud-lb/php-rdkafka",
+        "path": "php-src/ext/rdkafka",
+        "license": {
+            "type": "file",
+            "path": "LICENSE"
+        }
+    },
     "ext-event": {
         "type": "url",
         "url": "https://bitbucket.org/osmanov/pecl-event/get/3.0.8.tar.gz",