adds Linker script dir to Linker script path

CMakeLists.txt

@@ -4,6 +4,7 @@ include(CheckLinkerFlag)
 project(mnrs-bsp LANGUAGES ASM C)
 set(LINKER_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/env/${BOARD}/link.lds"
     CACHE FILEPATH "Linker script to use for BSP linking")
+get_filename_component(LINKER_SCRIPT_DIR "${LINKER_SCRIPT}" DIRECTORY)
 set(BSP_STARTUP "${CMAKE_CURRENT_SOURCE_DIR}/env/start.S"
     CACHE FILEPATH "Path to the BSP startup assembly file")
 set(BSP_TRAP_HANDLER "${CMAKE_CURRENT_SOURCE_DIR}/env/entry.S"
@@ -38,7 +39,7 @@ check_linker_flag(C "LINKER:--no-warn-rwx-segments" HAS_NO_WARN_RWX_SEGMENTS)
 if(HAS_NO_WARN_RWX_SEGMENTS)
     target_link_options(bsp INTERFACE LINKER:--no-warn-rwx-segments)
 endif()
-target_link_options(bsp INTERFACE LINKER: -nostartfiles -T ${LINKER_SCRIPT})
+target_link_options(bsp INTERFACE LINKER: -nostartfiles -T ${LINKER_SCRIPT} -L${LINKER_SCRIPT_DIR})
 
 if(SEMIHOSTING)
     target_include_directories(bsp INTERFACE include)