Merge #1: Fix libmultiprocess.pc install path

1bc076f Fix libmultiprocess.pc install path (Russell Yanofsky)

Pull request description:

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Tree-SHA512: f2e435a9f509d0ae559d90c1b43a30a08ed4628cc43e8561c2c8503e2837cd86b34b8f511acab00871b6d539158aec68c0219c6d1d8a82c113abc461b4cefefc

Author: ryanofsky

CMakeLists.txt

@@ -42,7 +42,7 @@ target_link_libraries(mpgen PRIVATE -L${capnp_LIBRARY_DIRS} capnpc)
 install(TARGETS mpgen EXPORT Multiprocess RUNTIME DESTINATION bin)
 
 configure_file(pkgconfig/libmultiprocess.pc.in "${CMAKE_CURRENT_BINARY_DIR}/libmultiprocess.pc" @ONLY)
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libmultiprocess.pc" DESTINATION "pkgconfig")
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libmultiprocess.pc" DESTINATION "lib/pkgconfig")
 
 install(EXPORT Multiprocess DESTINATION lib/cmake/Multiprocess)