changed to ZSTD_LEGACY_SUPPORT=0, as suggested within #80
diff --git a/lib/Makefile b/lib/Makefile
index eedd3d9..caf7003 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -51,7 +51,7 @@
 ZSTD_FILES := zstd_compress.c zstd_decompress.c fse.c huff0.c
 ZSTD_LEGACY:= legacy/zstd_v01.c legacy/zstd_v02.c legacy/zstd_v03.c
 
-ifeq ($(ZSTD_LEGACY),disable)
+ifeq ($(ZSTD_LEGACY_SUPPORT), 0)
 CPPFLAGS  += -DZSTD_LEGACY_SUPPORT=0
 else
 ZSTD_FILES+= $(ZSTD_LEGACY)
diff --git a/programs/Makefile b/programs/Makefile
index 1ff9c6f..6ede4cc 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -46,7 +46,7 @@
 ZSTD_FILES := $(ZSTDDIR)/zstd_compress.c $(ZSTDDIR)/zstd_decompress.c $(ZSTDDIR)/fse.c $(ZSTDDIR)/huff0.c
 ZSTD_LEGACY:= $(ZSTDDIR)/legacy/zstd_v01.c $(ZSTDDIR)/legacy/zstd_v02.c $(ZSTDDIR)/legacy/zstd_v03.c
 
-ifeq ($(ZSTD_LEGACY),disable)
+ifeq ($(ZSTD_LEGACY_SUPPORT), 0)
 CPPFLAGS  += -DZSTD_LEGACY_SUPPORT=0
 else
 ZSTD_FILES+= $(ZSTD_LEGACY)
@@ -81,7 +81,7 @@
 	$(CC) -m32 $(FLAGS) $^ -o $@$(EXT)
 
 zstd_nolegacy :
-	$(MAKE) zstd ZSTD_LEGACY=disable
+	$(MAKE) zstd ZSTD_LEGACY_SUPPORT=0
 
 fullbench  : $(ZSTD_FILES) \
         datagen.c fullbench.c