diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 5c297306d2a..50473fc96e8 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-05-26  Christian Biesinger  <cbiesinger@google.com>
+
+	* Makefile.in: Use = instead of == for the test command
+	for portability.
+
 2020-05-26  Tom de Vries  <tdevries@suse.de>
 
 	* gdb.base/gold-gdb-index-2.c: New test.
diff --git a/gdb/testsuite/Makefile.in b/gdb/testsuite/Makefile.in
index 0ba2eb42d5a..dbe95b34915 100644
--- a/gdb/testsuite/Makefile.in
+++ b/gdb/testsuite/Makefile.in
@@ -209,7 +209,7 @@ check-single-racy:
 	-rm -rf cache racy_outputs temp
 	mkdir -p racy_outputs; \
 	racyiter="$(RACY_ITER)"; \
-	test "x$$racyiter" == "x" && \
+	test "x$$racyiter" = "x" && \
 	  racyiter=$(DEFAULT_RACY_ITER); \
 	if test $$racyiter -lt 2 ; then \
 	  echo "RACY_ITER must be at least 2."; \
@@ -239,7 +239,7 @@ check-parallel:
 check-parallel-racy:
 	-rm -rf cache racy_outputs temp
 	racyiter="$(RACY_ITER)"; \
-	test "x$$racyiter" == "x" && \
+	test "x$$racyiter" = "x" && \
 	  racyiter=$(DEFAULT_RACY_ITER); \
 	if test $$racyiter -lt 2 ; then \
 	  echo "RACY_ITER must be at least 2."; \