--- ./ConfigureChecks.cmake.orig
+++ ./ConfigureChecks.cmake
@@ -17,25 +17,6 @@
 set(BINARYDIR ${CMAKE_BINARY_DIR})
 set(SOURCEDIR ${CMAKE_SOURCE_DIR})
 
-function(COMPILER_DUMPVERSION _OUTPUT_VERSION)
-    execute_process(
-        COMMAND
-            ${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1} -dumpversion
-        OUTPUT_VARIABLE _COMPILER_VERSION
-    )
-
-    string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
-        _COMPILER_VERSION ${_COMPILER_VERSION})
-
-    set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE)
-endfunction()
-
-if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW)
-    compiler_dumpversion(GNUCC_VERSION)
-    if (NOT GNUCC_VERSION EQUAL 34)
-        check_c_compiler_flag("-fvisibility=hidden" WITH_VISIBILITY_HIDDEN)
-    endif (NOT GNUCC_VERSION EQUAL 34)
-endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW)
 
 # HEADER FILES
 check_include_file(argp.h HAVE_ARGP_H)