--- /dev/null
+++ Libc/Libc-1353.100.2/tests/Makefile
@@ -0,0 +1,54 @@
+PROJECT := Libc
+TEST_DIR := tests/
+
+CUSTOM_TARGETS += osvariantutil
+
+ifeq ($(DEVELOPER_DIR),)
+    DEVELOPER_DIR := $(shell xcode-select -p)
+endif
+
+include $(DEVELOPER_DIR)/AppleInternal/Makefiles/darwintest/Makefile.common
+
+ifneq ($(PLATFORM),MacOSX)
+EXCLUDED_SOURCES += locale.c
+endif
+
+FRAMEWORK_CFLAGS := $(patsubst %,-iframework %,$(SYSTEM_FRAMEWORK_SEARCH_PATHS))
+WARNING_CFLAGS := -Weverything \
+	-Wno-vla -Wno-missing-field-initializers -Wno-padded \
+	-Wno-gnu-flexible-array-initializer -Wno-gnu-empty-initializer \
+	-Wno-partial-availability -Wno-used-but-marked-unused \
+	-Wno-reserved-id-macro -fmacro-backtrace-limit=0 \
+	-Wno-c++98-compat -Wno-extra-semi -Wno-language-extension-token
+OTHER_CFLAGS := -DDARWINTEST --std=gnu11 $(FRAMEWORK_CFLAGS) $(WARNING_CFLAGS) -I$(SDK_SYSTEM_FRAMEWORK_HEADERS)
+DT_LDFLAGS += -ldarwintest_utils
+ASAN_DYLIB_PATH := /usr/local/lib/sanitizers/
+
+nxheap: OTHER_CFLAGS += -Wno-cast-align
+strlcat: OTHER_CFLAGS += -Wno-pointer-arith
+psort: OTHER_CFLAGS += -Wno-cast-qual -Wno-sign-conversion
+net: OTHER_CFLAGS += -Wno-sign-conversion -Wno-cast-align -Wno-incompatible-pointer-types-discards-qualifiers -Wno-sign-compare
+printf: OTHER_CFLAGS += -Wno-format-nonliteral
+strlcpy: OTHER_CFLAGS += -D_FORTIFY_SOURCE=0
+realpath_edge: OTHER_CFLAGS += -fsanitize=address -I../fbsdcompat
+realpath_edge: OTHER_LDFLAGS += -Wl,-rpath -Wl,$(ASAN_DYLIB_PATH)
+qsort freebsd_qsort: OTHER_CFLAGS += -Wno-unused-function
+ifeq ($(PLATFORM),MacOSX)
+qsort_perf: OTHER_CFLAGS += -Wno-sign-compare -Wno-sign-conversion -Wno-cast-align -Wno-shorten-64-to-32
+else
+EXCLUDED_SOURCES += qsort_perf.c
+endif
+os_variant: OTHER_CFLAGS += -DOS_CRASH_ENABLE_EXPERIMENTAL_LIBTRACE
+
+osvariantutil: OTHER_CFLAGS += -Wno-gnu-statement-expression -Wno-covered-switch-default -DOS_CRASH_ENABLE_EXPERIMENTAL_LIBTRACE
+
+include $(DEVELOPER_DIR)/AppleInternal/Makefiles/darwintest/Makefile.targets
+
+OSVARIANTUTIL_INSTALLDIR = $(DSTROOT)/usr/local/bin
+
+install-osvariantutil: osvariantutil
+	mkdir -p $(OSVARIANTUTIL_INSTALLDIR)
+	cp $(SYMROOT)/osvariantutil $(OSVARIANTUTIL_INSTALLDIR)/
+ifeq ($(DWARF_DSYM_FILE_SHOULD_ACCOMPANY_PRODUCT),YES)
+	cp $(SYMROOT)/osvariantutil.dSYM $(OSVARIANTUTIL_INSTALLDIR)/
+endif