diff --git a/Makefile.am b/Makefile.am
index 8727ca4..303cc6f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -356,8 +356,7 @@ test_unit_test_CPPFLAGS = \
 	$(AM_CPPFLAGS) \
 	-I$(srcdir)/src/zimg \
 	-I$(srcdir)/test \
-	-I$(srcdir)/test/extra \
-	-I$(srcdir)/test/extra/googletest/googletest/include
+	-I$(srcdir)/test/extra
 
 test_unit_test_SOURCES = \
 	test/main.cpp \
@@ -419,13 +418,8 @@ test_unit_test_SOURCES += \
 	test/resize/x86/resize_impl_avx512_vnni_test.cpp
 endif # X86SIMD_AVX512
 
-test/extra/googletest/build/lib/libgtest.a: .FAKE
-	-$(MAKE) -C test/extra/googletest/build gtest
-
-.FAKE:
-
 test_unit_test_LDADD = \
-	test/extra/googletest/build/lib/libgtest.a \
+	-lgtest \
 	test/libmusl_m.la \
 	libzimg_internal.la
 endif # UNIT_TEST
diff --git a/configure.ac b/configure.ac
index cd50e96..5fd41fb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,11 +45,6 @@ AS_IF([test "x$enable_unit_test" = "xyes"],
                 [i?86],    [CFLAGS="$CFLAGS -mfpmath=sse -msse2" CXXFLAGS="$CXXFLAGS -mfpmath=sse -msse2"],
                 [x86_64],  [],
                 [AC_MSG_WARN([Could not determine how to enable IEEE-754 compliance on host. Tests may fail.])])
-
-        AC_CHECK_PROG([CMAKE], [cmake], [cmake])
-        AS_MKDIR_P([test/extra/googletest/build])
-        AS_IF([(cd "test/extra/googletest/build" && $CMAKE -Dgtest_disable_pthreads=ON "$ac_abs_confdir/test/extra/googletest")],
-              [], [AC_MSG_ERROR([CMake error])])
       ])