ENH: Allow NPY_PKG_CONFIG_PATH environment variable override
ENH: Allow NPY_PKG_CONFIG_PATH environment variable override

Allow overriding npy-pkg-config directory using the NPY_PKG_CONFIG_PATH
environment variable, making it easier to use numpy in cross-compilation
setups.

pizzathief/numpy,pbrod/numpy,madphysicist/numpy,endolith/numpy,pbrod/numpy,jakirkham/numpy,grlee77/numpy,madphysicist/numpy,MSeifert04/numpy,numpy/numpy,grlee77/numpy,mhvk/numpy,pdebuyl/numpy,MSeifert04/numpy,madphysicist/numpy,rgommers/numpy,WarrenWeckesser/numpy,mhvk/numpy,charris/numpy,pbrod/numpy,mhvk/numpy,abalkin/numpy,madphysicist/numpy,seberg/numpy,pizzathief/numpy,WarrenWeckesser/numpy,MSeifert04/numpy,anntzer/numpy,pizzathief/numpy,mhvk/numpy,endolith/numpy,jorisvandenbossche/numpy,seberg/numpy,endolith/numpy,seberg/numpy,simongibbons/numpy,abalkin/numpy,anntzer/numpy,grlee77/numpy,jorisvandenbossche/numpy,pizzathief/numpy,jakirkham/numpy,pdebuyl/numpy,endolith/numpy,mattip/numpy,pbrod/numpy,mattip/numpy,mattip/numpy,jakirkham/numpy,WarrenWeckesser/numpy,rgommers/numpy,grlee77/numpy,jakirkham/numpy,charris/numpy,rgommers/numpy,jakirkham/numpy,pdebuyl/numpy,jorisvandenbossche/numpy,anntzer/numpy,anntzer/numpy,mattip/numpy,grlee77/numpy,simongibbons/numpy,mhvk/numpy,numpy/numpy,pbrod/numpy,WarrenWeckesser/numpy,seberg/numpy,jorisvandenbossche/numpy,pizzathief/numpy,simongibbons/numpy,charris/numpy,rgommers/numpy,numpy/numpy,pdebuyl/numpy,charris/numpy,jorisvandenbossche/numpy,madphysicist/numpy,WarrenWeckesser/numpy,abalkin/numpy,simongibbons/numpy,numpy/numpy,MSeifert04/numpy,MSeifert04/numpy,simongibbons/numpy