Improve target example to more practical.

examples/targets/ArduinoDue.rb

@@ -5,6 +5,8 @@
 MRuby::CrossBuild.new("Arduino Due") do |conf|
   toolchain :gcc
 
+  # Mac OS X
+  # ARDUINO_PATH = '/Applications/Arduino.app/Contents/Resources/Java'
   # GNU Linux
   ARDUINO_PATH = '/opt/arduino'
   BIN_PATH = "#{ARDUINO_PATH}/hardware/tools/g++_arm_none_eabi/bin"
@@ -19,12 +21,22 @@ MRuby::CrossBuild.new("Arduino Due") do |conf|
     cc.flags = %w(-g -Os -w -ffunction-sections -fdata-sections -nostdlib --param max-inline-insns-single=500 
                 -Dprintf=iprintf -mcpu=cortex-m3 -DF_CPU=84000000L -DARDUINO=152 -D__SAM3X8E__ -mthumb -DUSB_PID=0x003e -DUSB_VID=0x2341 -DUSBCON)
     cc.compile_options = "%{flags} -o %{outfile} -c %{infile}"
+
+    #configuration for low memory environment
+    cc.defines << %w(MRB_HEAP_PAGE_SIZE=64)
+    cc.defines << %w(MRB_USE_IV_SEGLIST)
+    cc.defines << %w(KHASH_DEFAULT_SIZE=8)
+    cc.defines << %w(MRB_STR_BUF_MIN_SIZE=20)
+    cc.defines << %w(MRB_GC_STRESS)
+    #cc.defines << %w(DISABLE_STDIO) #if you dont need stdio.
+    #cc.defines << %w(POOL_PAGE_SIZE=1000) #effective only for use with mruby-eval
   end
 
   conf.cxx do |cxx|
     cxx.command = conf.cc.command.dup
     cxx.include_paths = conf.cc.include_paths.dup
     cxx.flags = conf.cc.flags.dup
+    cxx.defines = conf.cc.defines.dup
     cxx.compile_options = conf.cc.compile_options.dup
   end
 
@@ -36,4 +48,18 @@ MRuby::CrossBuild.new("Arduino Due") do |conf|
   #no executables
   conf.bins = []
 
+  #do not build executable test
+  conf.build_mrbtest_lib_only
+
+  #gems from core
+  conf.gem :core => "mruby-print" 
+  conf.gem :core => "mruby-math"
+  conf.gem :core => "mruby-enum-ext"
+
+  #light-weight regular expression
+  conf.gem :github => "masamitsu-murase/mruby-hs-regexp", :branch => "master" 
+
+  #Arduino API
+  #conf.gem :github =>"kyab/mruby-arduino", :branch => "master"
+
 end

examples/targets/chipKitMax32.rb

@@ -24,12 +24,22 @@ MRuby::CrossBuild.new("chipKitMax32") do |conf|
                 -fno-short-double -mprocessor=32MX795F512L -DF_CPU=80000000L -DARDUINO=23 -D_BOARD_MEGA_ 
                 -DMPIDEVER=0x01000202 -DMPIDE=23)
     cc.compile_options = "%{flags} -o %{outfile} -c %{infile}"
+
+    #configuration for low memory environment
+    cc.defines << %w(MRB_HEAP_PAGE_SIZE=64)
+    cc.defines << %w(MRB_USE_IV_SEGLIST)
+    cc.defines << %w(KHASH_DEFAULT_SIZE=8)
+    cc.defines << %w(MRB_STR_BUF_MIN_SIZE=20)
+    cc.defines << %w(MRB_GC_STRESS)
+    #cc.defines << %w(DISABLE_STDIO) #if you dont need stdio.
+    #cc.defines << %w(POOL_PAGE_SIZE=1000) #effective only for use with mruby-eval
   end
 
   conf.cxx do |cxx|
     cxx.command = conf.cc.command.dup
     cxx.include_paths = conf.cc.include_paths.dup
     cxx.flags = conf.cc.flags.dup
+    cxx.defines = conf.cc.defines.dup
     cxx.compile_options = conf.cc.compile_options.dup
   end
 
@@ -41,4 +51,18 @@ MRuby::CrossBuild.new("chipKitMax32") do |conf|
   #no executables
   conf.bins = []
 
+  #do not build test executable 
+  conf.build_mrbtest_lib_only
+
+  #gems from core
+  conf.gem :core => "mruby-print" 
+  conf.gem :core => "mruby-math"
+  conf.gem :core => "mruby-enum-ext"
+
+  #light-weight regular expression
+  conf.gem :github => "masamitsu-murase/mruby-hs-regexp", :branch => "master" 
+
+  #Arduino API
+  #conf.gem :github =>"kyab/mruby-arduino", :branch => "master"
+
 end