silence cmake warning about missing source file ext

diff --git a/testing/CMakeLists.txt b/testing/CMakeLists.txt
index 10ebcecb348f7a31ba9adc933ae59735bc25f499..98096d1d713305c0a443f4c98ec9d4675424f673 100644 (file)
--- a/testing/CMakeLists.txt
+++ b/testing/CMakeLists.txt
@@ -1,6 +1,6 @@
 # Test driver library for convenience linking.
 add_library(testhelp
-       testhelpers
+       testhelpers.cc
 )
 # Link this helper library to dspdfviewer's functions
 target_link_libraries(testhelp