diff '--color=auto' -ru a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2024-03-09 23:00:40.101308564 +0100
+++ b/CMakeLists.txt	2024-03-09 22:59:36.067973296 +0100
@@ -84,7 +84,7 @@
 	find_package(Git)
 endif()
 
-set(INFOWARE_PCI_DATA_DIR infoware_generated CACHE PATH "Output directory for the PCI ids generator")
+set(INFOWARE_PCI_DATA_DIR "${CMAKE_CURRENT_BINARY_DIR}/infoware_generated" CACHE PATH "Output directory for the PCI ids generator")
 set(INFOWARE_PCI_DATA_HPP pci_data.hpp)
 set(INFOWARE_PCI_DATA_GEN "${INFOWARE_PCI_DATA_DIR}/${INFOWARE_PCI_DATA_HPP}")
 set(infoware_pci_ids_error "\
@@ -132,13 +132,13 @@
 else()
 	include(ExternalProject)
 	ExternalProject_Add(infoware_generate_pcis
-	                    SOURCE_DIR ${CMAKE_SOURCE_DIR}
-	                    PREFIX ${CMAKE_BINARY_DIR}/pci_generator
-	                    BINARY_DIR ${CMAKE_BINARY_DIR}/pci_generator
+	                    SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}
+	                    PREFIX ${CMAKE_CURRENT_BINARY_DIR}/pci_generator
+	                    BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/pci_generator
 	                    BUILD_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target infoware_generate_pcis
 	                    INSTALL_COMMAND ""
 	                    BUILD_ALWAYS ON
-	                    CMAKE_ARGS -DINFOWARE_PCI_DATA_DIR:PATH=${CMAKE_BINARY_DIR}/${INFOWARE_PCI_DATA_DIR})
+	                    CMAKE_ARGS -DINFOWARE_PCI_DATA_DIR:PATH=${CMAKE_CURRENT_BINARY_DIR}/${INFOWARE_PCI_DATA_DIR})
 endif()
 add_dependencies(infoware infoware_generate_pcis)