NetworkManager: the location of NetworkManager.h is specified by pkg-config
NetworkManager: the location of NetworkManager.h is specified by pkg-config

The directory structure of NetworkManager can change over time. pkg-config informs
us of the correct location to find headers at. NM does not add subdirectories on its own.

https://github.com/libproxy/libproxy/issues/26

maxinbjohn/libproxy,maxinbjohn/libproxy,libproxy/libproxy,maxinbjohn/libproxy,libproxy/libproxy,horar/libproxy,libproxy/libproxy,horar/libproxy,maxinbjohn/libproxy,maxinbjohn/libproxy,libproxy/libproxy,libproxy/libproxy,libproxy/libproxy,horar/libproxy,horar/libproxy,horar/libproxy,maxinbjohn/libproxy,horar/libproxy,maxinbjohn/libproxy,horar/libproxy,libproxy/libproxy