1 files changed, 16 insertions, 0 deletions
diff --git a/Tests/ExportImport/Import/Interface/pch_iface_test.cpp b/Tests/ExportImport/Import/Interface/pch_iface_test.cpp
new file mode 100644
index 000000000..a18bbde23
--- /dev/null
+++ b/Tests/ExportImport/Import/Interface/pch_iface_test.cpp
@@ -0,0 +1,16 @@
+#ifdef EXPECT_PCH
+// Verify that pch/pch.h was included via '-include ...' or equivalent.
+#  ifndef PCH_PCH_H_INCLUDED
+#    error "Expected PCH_PCH_H_INCLUDED."
+#  endif
+#elif defined(__PGIC__) || defined(__ibmxl__) || defined(_CRAYC)
+// No PCH expected but these compilers define macros below.
+#elif defined(__GNUC__) || defined(__clang__) || defined(_INTEL_COMPILER) ||  \
+  defined(_MSC_VER)
+#  error "Expected EXPECT_PCH for this compiler."
+#endif
+
+int main()
+{
+  return 0;
+}