HAL for Re:ARM (LPC1768) architecture

Marlin/src/HAL/HAL_LPC1768/lpc1768_flag_script.py

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+#dynaomic build flags for generic compile options
+if __name__ == "__main__":
+  print " ".join([  "-std=gnu11",
+                    "-std=gnu++11",
+                    "-Os",
+                    "-mcpu=cortex-m3",
+                    "-mthumb",
+
+                    "-ffreestanding",
+                    "-fsigned-char",
+                    "-fno-move-loop-invariants",
+
+                    "-Wall",
+                    "--specs=nano.specs",
+                    "--specs=nosys.specs",
+
+                    "-IMarlin/src/HAL/HAL_LPC1768/framework_cmsis/CMSIS/Include",
+                    "-IMarlin/src/HAL/HAL_LPC1768/framework_cmsis/Device/NXP/LPC17xx/Include",
+                    "-IMarlin/src/HAL/HAL_LPC1768/framework_cmsis/Device/NXP/LPC17xx/drivers/include",
+
+                    "-MMD",
+                    "-MP",
+                    "-DTARGET_LPC1768",
+                    "-DIS_REARM"
+                  ])
+
+# extra script for linker options
+else:
+  from SCons.Script import DefaultEnvironment
+  env = DefaultEnvironment()
+  env.Append(
+      ARFLAGS=["rcs"],
+
+      ASFLAGS=["-x", "assembler-with-cpp"],
+
+      CXXFLAGS=[
+          "-fabi-version=0",
+          "-fno-use-cxa-atexit",
+          "-fno-threadsafe-statics"
+      ],
+      LINKFLAGS=[
+          "-Os",
+          "-mcpu=cortex-m3",
+          "-ffreestanding",
+          "-mthumb",
+          "--specs=nano.specs",
+          "--specs=nosys.specs",
+          "-u_printf_float",
+          "-Wl,-TMarlin/src/HAL/HAL_LPC1768/framework_cmsis/Device/NXP/LPC17xx/Source/Re-ARM/LPC1768.ld,--gc-sections"
+      ],
+  )