diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index d746953..9019e0a 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,8 +1,3 @@
-check_function_exists(getopt HAVE_GETOPT)
-if(NOT HAVE_GETOPT)
-  set(SRC_EXTRA_FILES ../src/getopt.c)
-endif(NOT HAVE_GETOPT)
-
 add_executable(in-memory in-memory.c)
 target_link_libraries(in-memory zip)
 target_include_directories(in-memory PRIVATE ${PROJECT_SOURCE_DIR}/lib ${PROJECT_BINARY_DIR})