Added a Makefile. This is temporary, until a Makefile.am is created.

src/mustang/Makefile

@@ -0,0 +1,61 @@
+CC := gcc
+#CFLAGS := -std=gnu99 -Wall -Wextra -Og -g
+CFLAGS := -std=gnu99 -Wall -Wextra -Og -g
+LDFLAGS := 
+LDLIBS := -lpthread
+
+# Should be defined according to the MarFS install prefix, i.e., the argument
+# passed to `./configure --prefix=` when installing MarFS
+MARFS_PREFIX := /opt/software/campaign/install
+
+# Target the MarFS-relevant include and source dirs for symbol definitions
+MARFS_CFLAGS := -I$(MARFS_PREFIX)/include 
+#MARFS_SRC_INCLUDE := -I/$(MARFS_PREFIX)/marfs/src/
+MARFS_SRC_INCLUDE := -I../ -I../api
+INCLUDE_XML := -I/usr/include/libxml2/
+MARFS_INCLUDE := $(MARFS_SRC_INCLUDE) $(INCLUDE_XML)
+
+# Link against MarFS libs using the system-specific installation prefix
+MARFS_LDFLAGS := -L$(MARFS_PREFIX)/lib
+
+# mustang_engine will be called by the mustang frontend/wrapper, but perform
+# all the significant computational work via the thread routines
+all: mustang_engine
+
+# The executable recipe
+mustang_engine: mustang_engine.c libmustang.a
+	$(CC) $(CFLAGS) $(MARFS_CFLAGS) $(MARFS_INCLUDE) $< -o $@ $(LDFLAGS) \
+		-lpthread -L. -lmustang $(MARFS_LDFLAGS) \
+		-Wl,-rpath,$(MARFS_PREFIX)/lib -lmarfs -llogging
+
+# A static library bundling all the data structures and threading code that the
+# mustang engine relies on. mustang *must* still be invoked via the
+# mustang_engine executable and/or via its "mustang" frontend---use in other
+# applications by simply linking against the static library is insufficient
+libmustang.a: mustang_threading.o hashtable.o id_cache.o task_queue.o
+	ar rcs $@ $^
+
+# thread_main and retcode_ll (specifically retcode_ll_flush) need to link 
+# against the logging library. So, create special rules for those object files.
+mustang_threading.o: mustang_threading.c mustang_threading.h mustang_logging.h
+	$(CC) $(CFLAGS) $(MARFS_INCLUDE) -c $< -llogging
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) $(MARFS_INCLUDE) $< -c $(LDLIBS)
+
+all: mustang_engine
+
+# Copy binaries and frontend script to MarFS install location to also make them
+# accessible in PATH
+install: mustang_engine
+	install ./$< $(MARFS_PREFIX)/bin/
+	install ./mustang $(MARFS_PREFIX)/bin/
+	install ./libmustang.a $(MARFS_PREFIX)/lib/
+
+clean:
+	rm -f libmustang.a ./*.o mustang_engine ./*.tar.gz
+	rm -f ./mustang-output-* ./*.log
+
+archive:
+	make clean
+	./archive.sh