title: On macOS 10.14 Mojave, impossible to install `newrelic` Node.js module
body: <p>Since the upgrade to macOS 10.14 Mojave, it seems that the installation of the <code>newrelic</code> (version 4.11.0) Node.js module fails.</p>
  
  <p>Let's create a project:</p>
  
  <pre><code>$ mkdir test-newrelic
  $ cd test-newrelic/
  $ npm init
  $ npm init --yes
  </code></pre>
  
  <p>Now, let's install <code>newrelic</code> module:</p>
  
  <pre><code>$ npm install --save newrelic
  
  &gt; @newrelic/native-metrics@3.1.2 install /Users/&lt;user&gt;/Sources/test-newrelic/node_modules/@newrelic/native-metrics
  &gt; node ./lib/pre-build.js install native_metrics
  
  &gt; /Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/bin/node /Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js clean configure
  gyp WARN download NVM_NODEJS_ORG_MIRROR is deprecated and will be removed in node-gyp v4, please use NODEJS_ORG_MIRROR
  gyp WARN download NVM_NODEJS_ORG_MIRROR is deprecated and will be removed in node-gyp v4, please use NODEJS_ORG_MIRROR
  &gt; /Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/bin/node /Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build -j 4 native_metrics
  gyp WARN download NVM_NODEJS_ORG_MIRROR is deprecated and will be removed in node-gyp v4, please use NODEJS_ORG_MIRROR
  CXX(target) Release/obj.target/native_metrics/src/native_metrics.o
  CXX(target) Release/obj.target/native_metrics/src/GCBinder.o
  CXX(target) Release/obj.target/native_metrics/src/LoopChecker.o
  CXX(target) Release/obj.target/native_metrics/src/RUsageMeter.o
  warningwarning: : warningwarninginclude: include:   pathpath  forfor  stdlibc++stdlibc++includeinclude    headerspathheaderspath    notfornotfor    found;stdlibc++found;stdlibc++    passpassheadersheaders    '-std=libc++''-std=libc++'notnot    onfound;onfound;   thethepass   commandcommand'-std=libc++'   linelineon   totothe   useusecommand   thetheline   libc++libc++to   standardstandarduse   librarylibrarythe  insteadinstead  [-Wstdlibcxx-not-found][-Wstdlibcxx-not-found]
  
  pass '-std=libc++' on  the libc++command  standardline  libraryto  insteaduse  [-Wstdlibcxx-not-found]the
  libc++ standard library instead [-Wstdlibcxx-not-found]
  In file included from ../src/RUsageMeter.cpp:../src/LoopChecker.cpp../src/GCBinder.cpp2:::2210::
  :10 :../src/GCBinder.hpp :fatal error3: :fatal error10: :'cstring'  'algorithm'file  fatal errorfilenot:   notfound 'map'found
  file
  not found
  #include &lt;cstring&gt;#include &lt;algorithm&gt;
  #include &lt;map&gt;
  
  ^~~~~~~~~         ^~~~~~~~~~~
  ^~~~~
  
  In file included from ../src/native_metrics.cpp:2:
  In file included from ../../../nan/nan.h:52:
  In file included from /Users/&lt;user&gt;/.node-gyp/6.14.4/include/node/node.h:42:
  /Users/&lt;user&gt;/.node-gyp/6.14.4/include/node/v8.h:21:10: fatal error: 'utility' file not found
  #include &lt;utility&gt;
  ^~~~~~~~~
  1 warning and 1 error generated.
  1 warning and 1 error generated.
  1 warning and 1 error generated.
  1 warning and 1 error generated.
  make: *** [Release/obj.target/native_metrics/src/RUsageMeter.o] Error 1
  make: *** Waiting for unfinished jobs....
  make: *** [Release/obj.target/native_metrics/src/native_metrics.o] Error 1
  make: *** [Release/obj.target/native_metrics/src/LoopChecker.o] Error 1
  make: *** [Release/obj.target/native_metrics/src/GCBinder.o] Error 1
  gyp ERR! build error
  gyp ERR! stack Error: `make` failed with exit code: 2
  gyp ERR! stack     at ChildProcess.onExit (/Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:276:23)
  gyp ERR! stack     at emitTwo (events.js:106:13)
  gyp ERR! stack     at ChildProcess.emit (events.js:191:7)
  gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:219:12)
  gyp ERR! System Darwin 18.2.0
  gyp ERR! command "/Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/bin/node" "/Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "build" "-j" "4" "native_metrics"
  gyp ERR! cwd /Users/&lt;user&gt;/Sources/test-newrelic/node_modules/@newrelic/native-metrics
  gyp ERR! node -v v6.14.4
  gyp ERR! node-gyp -v v3.4.0
  gyp ERR! not ok
  Error: Failed to execute install: Error: Failed to install module: Error: Failed to execute /Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/bin/node /Users/&lt;user&gt;/.nvm/versions/node/v6.14.4/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build -j 4 native_metrics: code 1; Error: Failed to download https://download.newrelic.com/nodejs_agent/builds/_newrelic_native_metrics-3_1_2-native_metrics-48-darwin-x64.gz: code 404
  test-newrelic@1.0.0 /Users/&lt;user&gt;/Sources/test-newrelic
  └─┬ newrelic@4.11.0
  ├─┬ @newrelic/koa@1.0.7
  │ └── methods@1.1.2
  ├── @newrelic/superagent@1.0.0
  ├── @tyriar/fibonacci-heap@2.0.8
  ├─┬ async@2.6.1
  │ └── lodash@4.17.11
  ├─┬ concat-stream@1.6.2
  │ ├── buffer-from@1.1.1
  │ ├── inherits@2.0.3
  │ └── typedarray@0.0.6
  ├─┬ https-proxy-agent@2.2.1
  │ ├─┬ agent-base@4.2.1
  │ │ └─┬ es6-promisify@5.0.0
  │ │   └── es6-promise@4.2.5
  │ └─┬ debug@3.2.6
  │   └── ms@2.1.1
  ├── json-stringify-safe@5.0.1
  ├─┬ readable-stream@2.3.6
  │ ├── core-util-is@1.0.2
  │ ├── isarray@1.0.0
  │ ├── process-nextick-args@2.0.0
  │ ├── safe-buffer@5.1.2
  │ ├── string_decoder@1.1.1
  │ └── util-deprecate@1.0.2
  └── semver@5.6.0
  
  npm WARN test-newrelic@1.0.0 No description
  npm WARN test-newrelic@1.0.0 No repository field.
  npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @newrelic/native-metrics@3.1.2 (node_modules/@newrelic/native-metrics):
  npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @newrelic/native-metrics@3.1.2 install: `node ./lib/pre-build.js install native_metrics`
  npm WARN optional SKIPPING OPTIONAL DEPENDENCY: Exit status 1
  </code></pre>
  
  <p>Node-gyp seems unable to find headers.</p>