fix output of version in libde265.pc (#407)

Author: farindk

libde265/CMakeLists.txt

@@ -151,5 +151,6 @@ else()
     set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
 endif()
 
+set(VERSION ${PROJECT_VERSION}) # so that the replacement in libde265.pc will work with both autotools and CMake
 configure_file(../libde265.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libde265.pc @ONLY)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libde265.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)