Adding srpc example to naclports.

examples/srpc/duality/nacl_build.mk

+# Copyright 2010, The Native Client SDK Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can
+# be found in the LICENSE file.
+
+# Common makefile for the examples.  This has some basic variables, such as
+# CC (the compiler) and some suffix rules such as .c.o.
+#
+# The main purpose of this makefile component is to demonstrate building a
+# Native Client module (.nexe)
+
+.SUFFIXES:
+.SUFFIXES: .c .cc .cpp .o
+
+.PHONY: check_variables
+
+ifeq ($(origin OS), undefined)
+  ifeq ($(shell uname -s), Darwin)
+    OS=Darwin
+  else
+    OS=$(shell uname -o)
+  endif
+endif
+
+ifeq ($(OS), $(filter $(OS), Windows_NT Cygwin))
+  PLATFORM = win
+  TARGET = x86
+endif
+ifeq ($(OS), $(filter $(OS), Darwin MACOS))
+  PLATFORM = mac
+  TARGET = x86
+endif
+
+# Look for 'Linux' in the $(OS) string.  $(OS) is assumed to be a Linux
+# variant if the result of $(findstring) is not empty.
+ifneq (, $(findstring Linux, $(OS)))
+  PLATFORM = linux
+  TARGET = x86
+endif
+
+NACL_SDK_ROOT ?= .
+
+NACL_TOOLCHAIN_DIR = toolchain/$(PLATFORM)_$(TARGET)
+
+CC = $(NACL_SDK_ROOT)/$(NACL_TOOLCHAIN_DIR)/bin/nacl-gcc
+CPP = $(NACL_SDK_ROOT)/$(NACL_TOOLCHAIN_DIR)/bin/nacl-g++
+
+%_x86_32.o: %.c
+        $(CC) $(CFLAGS) -m32 $(INCLUDES) $(OPT_FLAGS) -c -o $@ $<
+
+%_x86_32.o: %.cc
+        $(CPP) $(CFLAGS) -m32 $(INCLUDES) $(OPT_FLAGS) -c -o $@ $<
+
+%_x86_32.o: %.cpp
+        $(CPP) $(CFLAGS) -m32 $(INCLUDES) $(OPT_FLAGS) -c -o $@ $<
+
+%_x86_64.o: %.c
+        $(CC) $(CFLAGS) -m64 $(INCLUDES) $(OPT_FLAGS) -c -o $@ $<
+
+%_x86_64.o: %.cc
+        $(CPP) $(CFLAGS) -m64 $(INCLUDES) $(OPT_FLAGS) -c -o $@ $<
+
+%_x86_64.o: %.cpp
+        $(CPP) $(CFLAGS) -m64 $(INCLUDES) $(OPT_FLAGS) -c -o $@ $<
+
+# Make sure certain variables are defined.  This rule is set as a dependency
+# for all the .nexe builds in the examples.
+check_variables:
+ifeq ($(origin OS), undefined)
+        @echo "Error: OS is undefined" ; exit 42
+endif
+ifeq ($(origin PLATFORM), undefined)
+        @echo "Error: PLATFORM is undefined (OS = $(OS))" ; exit 42
+endif
+ifeq ($(origin TARGET), undefined)
+        @echo "Error: TARGET is undefined (OS = $(OS))" ; exit 42
+endif
+ifeq ($(origin NACL_SDK_ROOT), undefined)
+        @echo "Error: NACL_SDK_ROOT is undefined" ; exit 42
+endif