[CMakeLists.txt] clean up header dependencies of FreeRTOS and lpc17xx

IMHO it makes CMakeLists.txt more clear/simpler
Applying the same to boards is not possible, since they are not built as
libraries.

Signed-off-by: Adam Wujek <[email protected]>

FreeRTOS/CMakeLists.txt

@@ -35,10 +35,6 @@ set(LIBFREERTOS_SRCS ${LIBFREERTOS_SRCS}
   )
 
 include_directories(${UCONTROLLER_HDRS})
-include_directories(${FREERTOS_INC})
-
-set(FREERTOS_INC ${FREERTOS_INC} PARENT_SCOPE)
-set(PROJ_HDRS ${PROJ_HDRS} ${FREERTOS_INC} PARENT_SCOPE)
 
 string(REGEX REPLACE ";" " " FREERTOS_FLAGS "${FREERTOS_FLAGS}")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${FREERTOS_FLAGS}")

port/ucontroller/nxp/lpc17xx/CMakeLists.txt

@@ -2,8 +2,6 @@ set(LPC17XX_PATH ${CMAKE_CURRENT_SOURCE_DIR})
 set(LPCOPEN_SRCPATH ${LPC17XX_PATH}/lpcopen/src)
 set(LPCOPEN_INCPATH ${LPC17XX_PATH}/lpcopen/inc)
 
-include_directories(${LPC17XX_PATH})
-include_directories(${PROJ_HDRS})
 
 #Silence GCC Warnings
 add_compile_options( -Wno-switch -Wno-unused-but-set-variable )
@@ -48,7 +46,6 @@ else()
   set(LIBLPCOPEN_SRCS ${LIBLPCOPEN_SRCS} ${LPC17XX_PATH}/lpc17_uart.c)
 endif()
 
-include_directories(${LPCOPEN_INCPATH})
 
 set(TARGET_ARCH     "armv7-m" )
 set(TARGET_CPU      "cortex-m3")
@@ -73,5 +70,7 @@ set(UCONTROLLER_HDRS ${UCONTROLLER_HDRS} PARENT_SCOPE)
 
 add_library(lpcopen STATIC ${LIBLPCOPEN_SRCS})
 
-add_dependencies(lpcopen FreeRTOS)
 target_link_libraries(lpcopen PUBLIC FreeRTOS)
+target_include_directories(lpcopen PUBLIC ${LPCOPEN_INCPATH})
+target_include_directories(lpcopen PUBLIC ${LPC17XX_PATH})
+target_include_directories(lpcopen PUBLIC ${PROJ_HDRS})