The RunEnvironment helper prepare PATH, LD_LIBRARY_PATH and DYLD_LIBRARY_PATH environment variables to locate shared libraries and executables of your requirements at runtime.

This helper is specially useful:

  • If you are requiring packages with shared libraries and you are running some executable that needs those libraries.

  • If you have a requirement with some tool (executable) and you need it in the path.

from conans import ConanFile, RunEnvironment

class ExampleConan(ConanFile):

   def build(self):
      env_build = RunEnvironment(self)
      with tools.environment_append(env_build.vars):"....")
         # All the requirements bin folder will be available at PATH
         # All the lib folders will be available in LD_LIBRARY_PATH and DYLD_LIBRARY_PATH

Set environment variables:




Containing all the requirements bin folders.


Containing all the requirements lib folders. (Linux)


Containing all the requirements lib folders. (OSX)