CTest manual script needs explicit generator

Author: azonenberg

ctest-custom.cmake

@@ -29,6 +29,7 @@ elseif(${HOSTNAME} STREQUAL "debian-stable" )
 	set(CTEST_BINARY_DIRECTORY "/home/ci/scopehal-apps/build")
 	set(CTEST_SOURCE_DIRECTORY "/home/ci/scopehal-apps/")
 	set(CTEST_BUILD_CONFIGURATION "RelWithDebInfo")
+	set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
 	set(CONFIGURE_OPTIONS "-DBUILD_TESTING=ON")
 else()