Update plugin Makefile

plugin.mk

@@ -1,24 +1,24 @@
 # All paths here assume the PWD is plugin/something
 
 FLAGS += -fPIC \
-	-I../../include
+	-I../../include -I../../dep/include
 
 
 include ../../arch.mk
 
 ifeq ($(ARCH), lin)
-LDFLAGS += -shared
-TARGET = plugin.so
+	LDFLAGS += -shared
+	TARGET = plugin.so
 endif
 
 ifeq ($(ARCH), mac)
-LDFLAGS += -shared -undefined dynamic_lookup
-TARGET = plugin.dylib
+	LDFLAGS += -shared -undefined dynamic_lookup
+	TARGET = plugin.dylib
 endif
 
 ifeq ($(ARCH), win)
-LDFLAGS += -shared -L../../ -lRack
-TARGET = plugin.dll
+	LDFLAGS += -shared -L../../ -lRack
+	TARGET = plugin.dll
 endif