Changes for mac and node-20

Author: dthornley

binding.gyp

@@ -21,9 +21,9 @@
       'conditions': [
         ['OS=="mac"', {
           'xcode_settings': {
-            'MACOSX_DEPLOYMENT_TARGET': '10.7',
+            'MACOSX_DEPLOYMENT_TARGET': '10.15',
             'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
-            'CLANG_CXX_LANGUAGE_STANDARD': 'gnu++1y',  # -std=gnu++1y
+            'CLANG_CXX_LANGUAGE_STANDARD': 'c++17',  # -std=gnu++1y
             'CLANG_CXX_LIBRARY': 'libc++',
           }
         }],

package.json

@@ -5,7 +5,7 @@
   "description": "An async libmagic binding for node.js for detecting content types by data inspection",
   "main": "./lib/index",
   "dependencies": {
-    "nan": "^2.13.2"
+    "nan": "^2.17.0"
   },
   "scripts": {
     "install": "node-gyp rebuild",