ANDROID: CMake/src changes to build on android-24

* Updated pom file generation: Generate pom files after all sensor
      library targets have been created - allows for dependencies
    * Changes for compiling on Android
    * Check for mraa build options: Look at symbols in mraa library to
      determine UPM build options (example: mraa_iio_init, mraa_firmata_init)
    * Add per target summary for C/C++/java/nodejs/python
    * Added hierarchy to fti include directory...
        old: #include "upm_voltage.h"
        new: #include "fti/upm_voltage.h"
    * Removed unimplemented methods from mpu9150 library and java example
    * Add utilities-c target for all c examples.  Most of the C examples
      rely on the upm_delay methods.  Add a dependency on the utilities-c
      target for all c examples.
    * Updated the examples/CMakeLists.txt to add dependencies passed via
      TARGETS to the target name parsed from the example name.  Also updated
      the interface example names to start with 'interfaces'.
    * Updated src/examples/CMakeLists.txt to ALWAYS remove examples from the
      example_src_list (moved this from end of function to beginning).

Signed-off-by: Noel Eck <noel.eck@intel.com>

examples/CMakeLists.txt

@@ -50,6 +50,11 @@ function (add_example example_src)
     # Parse function parameters
     cmake_parse_arguments(add_example "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
 
+    # Attempt to remove this example source file from a list of example
+    # sources.  This allows for handling special case examples.
+    list (REMOVE_ITEM example_src_list ${example_src})
+    set (example_src_list ${example_src_list} PARENT_SCOPE)
+
     # Get the base filename from the full filename
     # For file /some/path/to/sensorfoo-bar.c, example_name = sensorfoo-bar
     get_filename_component(example_name ${example_src} NAME_WE)
@@ -84,7 +89,7 @@ function (add_example example_src)
     # If a dependency target does NOT exist, print a warning and skip
     foreach(_dep_target ${lib_target_names})
         if (NOT TARGET ${_dep_target})
-            message(STATUS "Missing CMake target (${_dep_target}), skipping example ${example_src}")
+            message(STATUS "Example ${example_src} is missing a required CMake target (${_dep_target}), skipping...")
             return()
         endif ()
     endforeach ()
@@ -96,10 +101,6 @@ function (add_example example_src)
     foreach(_dep_target ${lib_target_names})
         target_link_libraries(${this_target_name} ${_dep_target} ${CMAKE_THREAD_LIBS_INIT})
     endforeach ()
-
-    # Special case...
-    list (REMOVE_ITEM example_src_list ${example_src})
-    set (example_src_list ${example_src_list} PARENT_SCOPE)
 endfunction (add_example example_src)
 
 # Add subdirectories if BUILDEXAMPLES=on

examples/c++/jhd1313m1-lcd.cxx

@@ -23,7 +23,10 @@
  */
 
 #include <signal.h>
+#include <string>
+
 #include "jhd1313m1.hpp"
+#include "upm_utilities.h"
 
 int shouldRun = true;
 
@@ -64,7 +67,7 @@ main(int argc, char **argv)
         // Echo via printf
         printf("Hello World %d rgb: 0x%02x%02x%02x\n", ndx++, r, g, b);
 
-        sleep(1);
+        upm_delay(1);
     }
 
     //! [Interesting]

examples/c/CMakeLists.txt

@@ -7,5 +7,5 @@ file (GLOB example_src_list RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*.c")
 
 # - Create an executable for all other src files in this directory -------------
 foreach (_example_src ${example_src_list})
-    add_example(${_example_src} SUFFIX "-c")
+    add_example(${_example_src} TARGETS utilities-c SUFFIX "-c")
 endforeach ()

examples/java/CMakeLists.txt

@@ -111,7 +111,9 @@ add_example(RotaryEncoderSample rotaryencoder)
 add_example(RPR220_intrSample rpr220)
 add_example(RPR220Sample rpr220)
 add_example(ST7735Sample st7735)
-add_example(StepMotorSample stepmotor)
+if (NOT ANDROID)
+  add_example(StepMotorSample stepmotor)
+endif ()
 add_example(TM1637Sample tm1637)
 add_example(TP401Sample gas)
 add_example(TSL2561Sample tsl2561)
@@ -145,7 +147,9 @@ if (BACNET_FOUND)
   add_example(T8100_Example t8100)
   add_example(TB7300_Example tb7300)
 endif()
-add_example(VCAP_Example vcap)
+if (JPEG_FOUND)
+  add_example(VCAP_Example vcap)
+endif()
 add_example(BMP280_Example bmp280)
 add_example(BNO055_Example bno055)
 add_example(BMX055_Example bmx055)

examples/java/MPU9150Sample.java

@@ -34,13 +34,14 @@ public class MPU9150Sample {
 		while (true) {
 			sensor.update();
 
-			float[] accel = sensor.getAccelerometer();
-			System.out.println("Accelerometer: " + "AX: " + accel[0] + " AY: " + accel[1] + " AZ: "
-					+ accel[2]);
-
-			float[] gyro = sensor.getGyroscope();
-			System.out.println("Gryoscope: " + "GX: " + gyro[0] + " GY: " + gyro[1] + " GZ: "
-					+ gyro[2]);
+// These don't exist
+//			float[] accel = sensor.getAccelerometer();
+//			System.out.println("Accelerometer: " + "AX: " + accel[0] + " AY: " + accel[1] + " AZ: "
+//					+ accel[2]);
+//
+//			float[] gyro = sensor.getGyroscope();
+//			System.out.println("Gryoscope: " + "GX: " + gyro[0] + " GY: " + gyro[1] + " GZ: "
+//					+ gyro[2]);
 
 			float[] magn = sensor.getMagnetometer();
 			System.out.println("Magnetometer: " + "MX: " + magn[0] + " MY: " + magn[1] + " MZ: "
@@ -50,4 +51,4 @@ public class MPU9150Sample {
 		}
 		// ! [Interesting]
 	}
-}
+}