BlipBuf moved to 3rd-party

Makefile

@@ -5,6 +5,7 @@ BIN_NAME= bin/tic80
 
 3RD_PARTY = ../3rd-party
 DUKTAPE_LIB = $(3RD_PARTY)/duktape-2.2.0/src
+BLIPBUF_LIB = $(3RD_PARTY)/blip-buf
 PRE_BUILT = $(3RD_PARTY)/pre-built
 
 RM= rm -f
@@ -14,6 +15,7 @@ INCLUDES= \
 	-I$(3RD_PARTY)/zlib-1.2.8 \
 	-I$(3RD_PARTY)/giflib-5.1.4/lib \
 	-I$(3RD_PARTY)/SDL2-2.0.7/include \
+	-I$(BLIPBUF_LIB) \
 	-I$(DUKTAPE_LIB) \
 	-Iinclude
 
@@ -139,6 +141,7 @@ SOURCES_EXT= \
 
 LPEG_SRC= $(3RD_PARTY)/lpeg-1.0.1/*.c
 GIF_SRC= $(3RD_PARTY)/giflib-5.1.4/lib/*.c
+BLIP_SRC= $(BLIPBUF_LIB)/blip_buf.c
 
 DEMO_ASSETS= \
 	bin/assets/fire.tic.dat \
@@ -266,7 +269,7 @@ bin/tic80.o: src/tic80.c $(TIC80_H)
 bin/tic.o: src/tic.c $(TIC80_H)
 	$(CC) $< $(OPT) $(INCLUDES) -c -o $@
 
-bin/blip_buf.o: src/ext/blip_buf.c $(TIC80_H)
+bin/blip_buf.o: $(BLIP_SRC)
 	$(CC) $< $(OPT) $(INCLUDES) -c -o $@
 
 bin/jsapi.o: src/jsapi.c $(TIC80_H)
@@ -278,7 +281,7 @@ bin/luaapi.o: src/luaapi.c $(TIC80_H)
 bin/duktape.o: $(DUKTAPE_LIB)/duktape.c $(TIC80_H)
 	$(CC) $< $(OPT) $(INCLUDES) -c -o $@
 
-TIC80_SRC = src/tic80.c src/tic.c src/ext/blip_buf.c src/jsapi.c src/luaapi.c $(DUKTAPE_LIB)/duktape.c
+TIC80_SRC = src/tic80.c src/tic.c $(BLIP_SRC) src/jsapi.c src/luaapi.c $(DUKTAPE_LIB)/duktape.c
 TIC80_O = bin/tic80.o bin/tic.o bin/tools.o bin/blip_buf.o bin/jsapi.o bin/luaapi.o bin/duktape.o bin/gif.o
 TIC80_A = bin/libtic80.a
 TIC80_DLL = bin/tic80.dll