fatal error: 'node_internals.h' file not found

[AndreasMadsen]

• Version: 01c680b
• Platform: MacOS X
• Subsystem: addon

Running npm --nodedir=$NODE_BUILD_PATH install native-hdr-histogram causes the error:

/Users/Andreas/node/include/node/node_buffer.h:25:10: fatal error: 'node_internals.h' file not found
#include "node_internals.h"

I think we did something wrong in how we export or setup the headers. It appears to be caused by 290315a

[AndreasMadsen]

/cc @addaleax

[richardlau]

Suspect 290315a is the culprit. The refactor appears to have dropped the #if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS guard.