[PATCH] add Makefile

The scons based build system doesn't handle cross compilation, special
compiler flags or (un)installation, so add a simple makefile instead
which does.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 cpp/core/src/Makefile |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

Index: zxing-2.0/cpp/core/src/Makefile
===================================================================
--- /dev/null
+++ zxing-2.0/cpp/core/src/Makefile
@@ -0,0 +1,14 @@
+override CXXFLAGS += -I.
+SRCS := $(shell find -name '*.cpp')
+
+libzxing.a: $(SRCS:.cpp=.o)
+	$(AR) $(ARFLAGS) $@ $^
+
+install: libzxing.a
+	install -D -m 0644 $^ $(DESTDIR)/usr/lib/$^
+	find -name '*.h' -exec install -m 0644 -D "{}" \
+		"$(DESTDIR)/usr/include/{}" ";"
+
+uninstall:
+	rm -f $(DESTDIR)/usr/lib/libzxing.a
+	rm -rf $(DESTDIR)/usr/include/zxing