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node.jsgccnpmnode-gypgyp

Add include dir for node gyp

I am deploying a node-js app to heroku that requires the npm package imagemagic-native.

I made the buildpack install libmagick++-dev and export the include path:

export INCLUDE_PATH="$BUILD_DIR/.apt/usr/include:$INCLUDE_PATH"
export CPATH="$INCLUDE_PATH"
export CPPPATH="$INCLUDE_PATH"

Upon installing the imagemagic-native package with npm install, node-gyp is invoked to compile it's binaries. However I get this error:

remote:        > [email protected] install /tmp/build_720834c3a32b65d69ae603d7c618e20f/node_modules/imagemagick-native
remote:        > node-gyp rebuild
remote:        
remote:        make: Entering directory `/tmp/build_720834c3a32b65d69ae603d7c618e20f/node_modules/imagemagick-native/build'
remote:          CXX(target) Release/obj.target/imagemagick/src/imagemagick.o
remote:        In file included from ../src/imagemagick.cc:9:
remote:        ../src/imagemagick.h:1:22: warning: Magick++.h: No such file or directory

This suggests that gcc doesn't see the header files for libmagick++, because $CCPATH is not available to it.

How can I make npm install add the path to the list of include_dirs that node-gyp uses?

More detail about my use case is here: Using Magick++ in a node.js application on heroku

Solution

  • Try:

    setting the environment variable CXX=/path/to/g++ -Ipath/to/include

    and then restarting the process. If you're using bash this is done by

    export CXX="/path/to/g++ -Ipath/to/include"

    /path/to/include being where the missing header Magick++.h is located

    if that doesn't work you may manually have to set CXX to include the -I in the makefile at /tmp/build_720834c3a32b65d69ae603d7c618e20f/node_modules/imagemagick-native/build then cding into that directory and calling make.