+# adjust object dirs
+ES1_OBJECTS := $(addprefix $(ES1_OBJ_DIR)/, $(MESA_OBJECTS))
+ES2_OBJECTS := $(addprefix $(ES2_OBJ_DIR)/, $(MESA_OBJECTS))
+MESA_OBJECTS := $(addprefix $(MESA_OBJ_DIR)/, $(MESA_OBJECTS))
+
+ES1_GALLIUM_OBJECTS := $(addprefix $(ES1_OBJ_DIR)/, $(MESA_GALLIUM_OBJECTS))
+ES2_GALLIUM_OBJECTS := $(addprefix $(ES2_OBJ_DIR)/, $(MESA_GALLIUM_OBJECTS))
+MESA_GALLIUM_OBJECTS := $(addprefix $(MESA_OBJ_DIR)/, $(MESA_GALLIUM_OBJECTS))
+
+# define preprocessor flags
+MESA_CPPFLAGS := $(API_DEFINES) $(DEFINES)
+ES1_CPPFLAGS := -DFEATURE_ES1=1 $(DEFINES)
+ES2_CPPFLAGS := -DFEATURE_ES2=1 $(DEFINES)
+
+# append include dirs
+MESA_CPPFLAGS += $(INCLUDE_DIRS) $(TALLOC_CFLAGS)
+ES1_CPPFLAGS += -I$(TOP)/src/mapi/es1api $(INCLUDE_DIRS)
+ES2_CPPFLAGS += -I$(TOP)/src/mapi/es2api $(INCLUDE_DIRS)
+
+# tidy compiler flags
+CFLAGS := $(filter-out $(DEFINES), $(CFLAGS))
+CXXFLAGS := $(filter-out $(DEFINES), $(CXXFLAGS))
+
+# LLVM is needed for the state tracker
+MESA_CFLAGS := $(LLVM_CFLAGS)
+ES1_CFLAGS := $(LLVM_CFLAGS)
+ES2_CFLAGS := $(LLVM_CFLAGS)
+
+define mesa-cc-c
+ @mkdir -p $(dir $@)
+ $(CC) -c -o $@ $< $($(1)_CPPFLAGS) $($(1)_CFLAGS) $(CFLAGS)
+endef
+
+define mesa-cxx-c
+ @mkdir -p $(dir $@)
+ $(CXX) -c -o $@ $< $($(1)_CPPFLAGS) $($(1)_CFLAGS) $(CXXFLAGS)
+endef