+# ################################################################
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+.PHONY: all
+all: check_flipped_bits
+
+ZSTDLIBDIR ?= ../../lib
+
+CFLAGS ?= -O3
+CFLAGS += -I$(ZSTDLIBDIR) -I$(ZSTDLIBDIR)/common -I$(ZSTDLIBDIR)/compress \
+ -I$(ZSTDLIBDIR)/decompress
+CFLAGS += -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
+ -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
+ -Wstrict-prototypes -Wundef \
+ -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
+ -Wredundant-decls -Wmissing-prototypes
+CFLAGS += $(DEBUGFLAGS) $(MOREFLAGS)
+FLAGS = $(CPPFLAGS) $(CFLAGS) $(LDFLAGS)
+
+.PHONY: $(ZSTDLIBDIR)/libzstd.a
+$(ZSTDLIBDIR)/libzstd.a:
+ $(MAKE) -C $(ZSTDLIBDIR) libzstd.a
+
+check_flipped_bits: check_flipped_bits.c $(ZSTDLIBDIR)/libzstd.a
+ $(CC) $(FLAGS) $< -o $@$(EXT) $(ZSTDLIBDIR)/libzstd.a
+
+.PHONY: clean
+clean:
+ rm -f check_flipped_bits