Cross-Compile-Friendly Build System for Native Binaries and Cross-Compiled MIPS Native Binary

src/cpp/Makefile

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+VER = 2.8
+MAKEARCH = $(MAKE) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE)
+
+all:
+ $(MAKEARCH) VER=$(VER) -C _nix_based/
+ mkdir -p target
+ cp -f _nix_based/*.so target/
+
+clean:
+ rm -rf target
+ $(MAKE) -C _nix_based/ clean 

src/cpp/README.make

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+# An Explanation of the Make Process for jSSC Native Binaries
+
+The Make system is only configured to work for Linux builds at this time.
+
+If you just need to build a native binary for the environment on which you are
+building, simply run "make". The resulting .so file will be in the "target" 
+directory. You will need to rename the file to match the following format (arch
+will be ommitted on a default build):
+
+ libjSSC-[JSSC_VERSION_NUMBER]_[ARCHITECTURE].so
+
+Below is a list of recognized strings for the [ARCHITECTURE] field:
+
+ * "x86" or "x86_64" for i386, i686, and AMD architectures (32-bit and 
+ 64-bit, respectively).
+ * "armsf" or "armhf" for ARM architectures (soft-float and hard-float, 
+ respectively).
+ * "mips" for MIPS architectures.
+
+If you need to cross-compile the native binary, that can be done by specifying 
+an architecture and a toolchain prefix on the command line when executing make.
+These can be specified with the following syntax:
+
+ make ARCH=[ARCHITECTURE] CROSS_COMPILE=[TOOLCHAIN_PREFIX]
+
+This follows the example of Linux kernel modules. The architecture should be 
+one of the ones specified above. The toolchain prefix is whatever prefix your 
+toolchain puts before the gnu compiler commands. For example, if I want to 
+compile for the MIPS processor using the uclibc toolchain (for which the usual 
+command to launch g++ would be "mips-linux-g++"), I would specify my toolchain 
+prefix as "mips-linux-". This can also be specified as an absolute path, such 
+as "/opt/toolchains/uclibc-crosstools-gcc/usr/bin/mips-linux-".

src/cpp/_nix_based/Makefile

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+CC = $(CROSS_COMPILE)g++
+CFLAGS = -Wall -c -fpic
+
+all:
+ $(CC) $(CFLAGS) jssc.cpp
+ $(CC) -shared -o libjSSC-$(VER)_$(ARCH).so jssc.o
+
+clean:
+ rm -rf *.o *.so