Enabling USER_LIB_PATH

[ladislas]

Setting USER_LIB_PATH to path/to/my/project/libraries makes it easy to use your project specific libraries without out the pain of copying/symlinking them in the Arduino/libraries folder.

[peplin]

That should already be happening with your USER_LIB_PATH without this change. I think the changed line has to do with automatically scanning the source files for included libraries, but not changing the actual include path. That could still be a useful change, though.

[ladislas]

maybe I'm doing something wrong, but before changing the file, adding USER_LIB_PATH := /path/to/my/project/libraries to my config makefile and not copying my libraries to ~/Documents/Arduino/libraries (I'm on a Mac) resulted in #include "MyAwesomeLib.h" - file does not exist....

After changing the file and still not copying my libs, everything compiles and runs seamlessly.

[peplin]

Ah, besides setting the path (which you've done correctly) you have to specify in the Makefile that you want to use the library: https://github.com/sudar/Arduino-Makefile#including-libraries

Even though that says "ARDUINO_LIBS", once you set the USER_LIB_PATH you can add user libs to it as well.

[ladislas]

yep you're right.

but in my case, having the compiler automatically scan and include the libs I need is a lot easier. I can have a common makefile for all my programs and I don't have to tweak it each time I add or change a library

[peplin]

Yeah, agreed, might as well automatically pick up user libs too.

[sudar]

Thanks. Just merged it.