diff --git a/tests/lib1/circular-1.pc b/tests/lib1/circular-1.pc
new file mode 100644
index 0000000..732197a
--- /dev/null
+++ b/tests/lib1/circular-1.pc
@@ -0,0 +1,11 @@
+prefix=/usr
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: circular-1
+Description: A testing pkg-config file
+Version: 1.2.3
+Libs: -lcircular-1
+Requires: circular-2
+Cflags:
diff --git a/tests/lib1/circular-2.pc b/tests/lib1/circular-2.pc
new file mode 100644
index 0000000..f457fee
--- /dev/null
+++ b/tests/lib1/circular-2.pc
@@ -0,0 +1,11 @@
+prefix=/usr
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: circular-2
+Description: A testing pkg-config file
+Version: 1.2.3
+Libs: -lcircular-2
+Requires: circular-1
+Cflags: