definition of source files for main.

cmake/modules/DuneFemDgMacros.cmake

+# the main files for all the tests are in the same dir
+set(FEMDG_MAIN_DIR "${CMAKE_SOURCE_DIR}/dune/fem-dg/main")
+
+# helper variables
+set(SOURCEMAIN  ${FEMDG_MAIN_DIR}/main.cc)
+set(SOURCEONE   ${SOURCEMAIN} ${FEMDG_MAIN_DIR}/main_pol.cc)
+set(SOURCEALL   ${SOURCEMAIN} ${FEMDG_MAIN_DIR}/main_0.cc ${FEMDG_MAIN_DIR}/main_1.cc ${FEMDG_MAIN_DIR}/main_2.cc ${FEMDG_MAIN_DIR}/main_3.cc ${FEMDG_MAIN_DIR}/main_4.cc)
+
 message(AUTHOR_WARNING "TODO: Implement module test.")