add gsasl

config/source.json

@@ -1200,6 +1200,16 @@
             "path": "LICENSE"
         }
     },
+    "gsasl": {
+        "type": "filelist",
+        "url": "https://ftp.gnu.org/gnu/gsasl/",
+        "regex": "/href=\\\"(?<file>gsasl-(?<version>[^\\\"]+)\\.tar\\.gz)\\\"/",
+        "prefer-stable": true,
+        "license": {
+            "type": "file",
+            "path": "COPYING.LESSER"
+        }
+    },
     "yaml": {
         "type": "git",
         "path": "php-src/ext/yaml",