Add needed platform defined gaurds to compile with Arduino IDE

Also removed explicit platform HAL directory inclusion from platformio.ini to make sure these errors are caught by Travis in the future

Marlin/src/HAL/HAL_LPC1768/HardwareSerial.cpp

@@ -20,6 +20,8 @@
  *
  */
 
+#ifdef TARGET_LPC1768
+
 #include "../../../macros.h"
 #include "../HAL.h"
 #include "HardwareSerial.h"
@@ -634,3 +636,5 @@ void UART3_IRQHandler (void)
 #ifdef __cplusplus
 }
 #endif
+
+#endif // TARGET_LPC1768

Marlin/src/HAL/HAL_LPC1768/LPC1768_Servo.cpp

@@ -61,6 +61,7 @@
  *
  */
 
+#ifdef TARGET_LPC1768
 
 #if HAS_SERVOS
 
@@ -166,5 +167,5 @@
 
 #endif // HAS_SERVOS
 
-
+#endif // TARGET_LPC1768
 

Marlin/src/HAL/HAL_LPC1768/SoftwareSerial.cpp

@@ -29,6 +29,7 @@ The latest version of this library can always be found at
 http://arduiniana.org.
 */
 
+#ifdef TARGET_LPC1768
 
 //
 // Includes
@@ -396,3 +397,5 @@ int SoftwareSerial::peek()
   // Read from "head"
   return _receive_buffer[_receive_buffer_head];
 }
+
+#endif // TARGET_LPC1768

Marlin/src/HAL/HAL_LPC1768/WInterrupts.cpp

@@ -16,6 +16,8 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
+#ifdef TARGET_LPC1768
+
 #include "../../../macros.h"
 #include "../HAL.h"
 #include "arduino.h"
@@ -222,3 +224,5 @@ return; //silences warning
 }
 }
 #endif
+
+#endif // TARGET_LPC1768

platformio.ini

@@ -25,7 +25,7 @@ lib_deps =
   https://github.com/lincomatic/LiquidTWI2.git
   https://github.com/teemuatlut/TMC2130Stepper.git
   https://github.com/adafruit/Adafruit_NeoPixel.git
-default_src_filter = +<*> -<example_configurations> -<src/HAL/HAL_*> -<frameworks>
+default_src_filter = +<*> -<example_configurations> -<frameworks>
 
 [env:megaatmega2560]
 platform = atmelavr
@@ -34,7 +34,7 @@ board = megaatmega2560
 build_flags = -I $BUILDSRC_DIR
 board_f_cpu = 16000000L
 lib_deps = ${common.lib_deps}
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+src_filter = ${common.default_src_filter}
 
 [env:megaatmega1280]
 platform = atmelavr
@@ -43,7 +43,7 @@ board = megaatmega1280
 build_flags = -I $BUILDSRC_DIR
 board_f_cpu = 16000000L
 lib_deps = ${common.lib_deps}
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+src_filter = ${common.default_src_filter}
 
 [env:printrboard]
 platform = teensy
@@ -53,7 +53,7 @@ build_flags = -I $BUILDSRC_DIR -D MOTHERBOARD=BOARD_PRINTRBOARD
 # Bug in arduino framework does not allow boards running at 20Mhz
 #board_f_cpu = 20000000L
 lib_deps = ${common.lib_deps}
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+src_filter = ${common.default_src_filter}
 
 [env:printrboard_revf]
 platform = teensy
@@ -68,7 +68,7 @@ framework = arduino
 board = teensy20pp
 build_flags = -I $BUILDSRC_DIR -D MOTHERBOARD=BOARD_BRAINWAVE_PRO
 lib_deps = ${common.lib_deps}
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+src_filter = ${common.default_src_filter}
 
 [env:rambo]
 platform = atmelavr
@@ -77,7 +77,7 @@ board = reprap_rambo
 build_flags = -I $BUILDSRC_DIR
 board_f_cpu = 16000000L
 lib_deps = ${common.lib_deps}
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+src_filter = ${common.default_src_filter}
 
 [env:anet10]
 platform = atmelavr
@@ -98,7 +98,7 @@ framework = arduino
 board = due
 build_flags = -I $BUILDSRC_DIR -D MOTHERBOARD=BOARD_RAMPS4DUE_EFB
 lib_deps = ${common.lib_deps}
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_DUE>
+src_filter = ${common.default_src_filter}
 
 [env:teensy35]
 platform = teensy
@@ -107,7 +107,7 @@ board = teensy35
 build_flags = -I $BUILDSRC_DIR
 lib_deps = ${common.lib_deps}
 lib_ignore = Adafruit NeoPixel
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_TEENSY35_36>
+src_filter = ${common.default_src_filter}
 
 [env:Re-ARM]
 platform = nxplpc
@@ -115,5 +115,5 @@ board_f_cpu = 100000000L
 build_flags = !python Marlin/src/HAL/HAL_LPC1768/lpc1768_flag_script.py
 lib_ldf_mode = off
 lib_deps = U8glib-ARM
-src_filter = ${common.default_src_filter} +<src/HAL/HAL_LPC1768> +<frameworks/CMSIS/LPC1768>
+src_filter = ${common.default_src_filter} +<frameworks/CMSIS/LPC1768>
 extra_scripts = Marlin/src/HAL/HAL_LPC1768/lpc1768_flag_script.py