Hi i need to add a .pc file in my Qt project.I have done some changes in the .pro file for this :

PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/home/arun/Documents/Subha/OCT_LIB_WORK/MCPTT_LIB_BUILD_OCT/PJSIP_LIB/lib/pkgconfig/
#INCLUDEPATH +=/home/arun/Documents/Subha/OCT_LIB_WORK/MCPTT_LIB_BUILD_OCT/PJSIP_LIB/lib/pkgconfig/
CONFIG += link_pkgconfig
PKGCONFIG += libpjproject

pkgconfig.pc is my file to be included. While building , getting the error as 'libpjproject development package not found'. How I'm supposed to link this file to my project.