Disabled external gits

cs440-acg/ext/eigen/unsupported/doc/snippets/CMakeLists.txt

@@ -0,0 +1,26 @@
+FILE(GLOB snippets_SRCS "*.cpp")
+
+ADD_CUSTOM_TARGET(unsupported_snippets)
+
+FOREACH(snippet_src ${snippets_SRCS})
+  GET_FILENAME_COMPONENT(snippet ${snippet_src} NAME_WE)
+  SET(compile_snippet_target compile_${snippet})
+  SET(compile_snippet_src ${compile_snippet_target}.cpp)
+  FILE(READ ${snippet_src} snippet_source_code)
+  CONFIGURE_FILE(${PROJECT_SOURCE_DIR}/doc/snippets/compile_snippet.cpp.in
+                 ${CMAKE_CURRENT_BINARY_DIR}/${compile_snippet_src})
+  ADD_EXECUTABLE(${compile_snippet_target}
+                 ${CMAKE_CURRENT_BINARY_DIR}/${compile_snippet_src})
+  if(EIGEN_STANDARD_LIBRARIES_TO_LINK_TO)
+    target_link_libraries(${compile_snippet_target} ${EIGEN_STANDARD_LIBRARIES_TO_LINK_TO})
+  endif()
+  ADD_CUSTOM_COMMAND(
+    TARGET ${compile_snippet_target}
+    POST_BUILD
+    COMMAND ${compile_snippet_target}
+    ARGS >${CMAKE_CURRENT_BINARY_DIR}/${snippet}.out
+  )
+  ADD_DEPENDENCIES(unsupported_snippets ${compile_snippet_target})
+  set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${compile_snippet_src}
+                              PROPERTIES OBJECT_DEPENDS ${snippet_src})
+ENDFOREACH(snippet_src)