diff --git a/kdm/ConfigureChecks.cmake b/kdm/ConfigureChecks.cmake
index 60c03b78..b34a4b8e 100644
--- a/kdm/ConfigureChecks.cmake
+++ b/kdm/ConfigureChecks.cmake
@@ -32,10 +32,6 @@ int main()
 # for config-kdm.h
 check_function_exists(seteuid HAVE_SETEUID)
 
-# for environ in config-kdm.h
-check_include_files(crt_externs.h HAVE_CRT_EXTERNS_H)
-check_function_exists(_NSGetEnviron HAVE_NSGETENVIRON)
-
 find_library(UTIL_LIBRARIES util)
 mark_as_advanced(UTIL_LIBRARIES)
 
diff --git a/kdm/config-kdm.h.cmake b/kdm/config-kdm.h.cmake
index 3e8912d7..2265681b 100644
--- a/kdm/config-kdm.h.cmake
+++ b/kdm/config-kdm.h.cmake
@@ -1,14 +1,3 @@
-/* Define if your system needs _NSGetEnviron to set up the environment */
-#cmakedefine HAVE_NSGETENVIRON 1
-/* Define to 1 if you have the <crt_externs.h> header file - needed for "environ". */
-#cmakedefine HAVE_CRT_EXTERNS_H 1
-/* environ - needed by kdm */
-#if defined(HAVE_NSGETENVIRON) && defined(HAVE_CRT_EXTERNS_H)
-# include <sys/time.h>
-# include <crt_externs.h>
-# define environ (*_NSGetEnviron())
-#endif
-
 /* Define to 1 if you have the `auth_timeok' function. */
 #cmakedefine HAVE_AUTH_TIMEOK 1