diff --git a/Tests/base/NSThread/GNUmakefile.preamble b/Tests/base/NSThread/GNUmakefile.preamble
new file mode 100644
index 000000000..368fe0930
--- /dev/null
+++ b/Tests/base/NSThread/GNUmakefile.preamble
@@ -0,0 +1 @@
+ADDITIONAL_TOOL_LIBS += -lpthread