Index: neovim-0.8.2/CMakeLists.txt
===================================================================
--- neovim-0.8.2.orig/CMakeLists.txt	2022-12-29 17:12:10.000000000 +0100
+++ neovim-0.8.2/CMakeLists.txt	2022-12-30 10:33:00.250094998 +0100
@@ -203,34 +203,6 @@ if(${INIT_FLAGS_NAME})
   set(CMAKE_REQUIRED_FLAGS "${${INIT_FLAGS_NAME}}")
 endif()
 
-# Include <string.h> because some toolchains define _FORTIFY_SOURCE=2 in
-# internal header files, which should in turn be #included by <string.h>.
-check_c_source_compiles("
-#include <string.h>
-
-#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 1
-#error \"_FORTIFY_SOURCE > 1\"
-#endif
-int
-main(void)
-{
-  return 0;
-}
-" HAS_ACCEPTABLE_FORTIFY)
-
-if(NOT HAS_ACCEPTABLE_FORTIFY)
-  message(STATUS "Unsupported _FORTIFY_SOURCE found, forcing _FORTIFY_SOURCE=1")
-  # Extract possible prefix to _FORTIFY_SOURCE (e.g. -Wp,-D_FORTIFY_SOURCE).
-  STRING(REGEX MATCH "[^\ ]+-D_FORTIFY_SOURCE" _FORTIFY_SOURCE_PREFIX "${CMAKE_C_FLAGS}")
-  STRING(REPLACE "-D_FORTIFY_SOURCE" "" _FORTIFY_SOURCE_PREFIX "${_FORTIFY_SOURCE_PREFIX}" )
-  if(NOT _FORTIFY_SOURCE_PREFIX STREQUAL "")
-    message(STATUS "Detected _FORTIFY_SOURCE Prefix=${_FORTIFY_SOURCE_PREFIX}")
-  endif()
-  # -U in add_definitions doesn't end up in the correct spot, so we add it to
-  # the flags variable instead.
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_FORTIFY_SOURCE_PREFIX}-U_FORTIFY_SOURCE ${_FORTIFY_SOURCE_PREFIX}-D_FORTIFY_SOURCE=1")
-endif()
-
 # Remove --sort-common from linker flags, as this seems to cause bugs (see #2641, #3374).
 # TODO: Figure out the root cause.
 if(CMAKE_EXE_LINKER_FLAGS MATCHES "--sort-common" OR