Netatop fails to build with GCC-14 or Clang-17

[NHOrus]

GCC-14 enabled errors on long-deprecated C features, like functions declared without prototype. Clang did it long time ago
netatop fails under this category:

/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1041:11: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1041 | gctaskexit()
      |           ^
      |            void
/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1075:11: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1075 | gcsockinfo()
      |           ^
      |            void
/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1285:11: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1285 | gctaskinfo()
      |           ^
      |            void
/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1358:13: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1358 | wipesockinfo()
      |             ^
      |              void
/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1386:13: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1386 | wipetaskinfo()
      |             ^
      |              void
/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1414:13: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1414 | wipetaskexit()
      |             ^
      |              void
/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1727:12: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1727 | init_module()
      |            ^
      |             void
/var/tmp/portage/sys-process/atop-2.10.0-r1/work/netatop-3.1/module/netatop.c:1828:15: error: a function declaration without a prototype is deprecated in all versions of C
      [-Werror,-Wstrict-prototypes]
 1828 | cleanup_module()
      |               ^
      |                void