Add "make all" target for better user experience in Eclipse for migration samples. (oneapi-src#269)

* Add "make all" target for better user experience when attempting to build from within Eclipse.

* Add "make all" target for better user experience when attempting to build from within Eclipse.

* Add "make all" target for better user experience when attempting to build from within Eclipse.

Author: xmnboy

Tools/Migration/folder-options-dpct/Makefile

@@ -15,6 +15,8 @@ CPPFLAGS += $(INC_FLAGS)
 %.o: %.cu
 	$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) $< -o $@
 
+all: $(TARGET)
+
 $(TARGET): $(OBJS)
 	$(CXX) $(LDFLAGS) $(OBJS) -o $@ $(LOADLIBES) $(LDLIBS)
 

Tools/Migration/rodinia-nw-dpct/Makefile

@@ -7,6 +7,8 @@ DEPS = src/needle_kernel.cu src/needle.h
 %.o: %.cu
 	$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) $< -o $@
 
+all: $(TARGET)
+
 $(TARGET): $(SRCS) $(DEPS)
 	$(CXX) $(SRCS) -o $@
 

Tools/Migration/vector-add-dpct/Makefile

@@ -6,6 +6,8 @@ SRCS = src/vector_add.cu
 %.o: %.cu
 	$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) $< -o $@
 
+all: $(TARGET)
+
 $(TARGET): $(SRCS) $(DEPS)
 	$(CXX) $(SRCS) -o $@