discount 2.2.7d is not gcc 14 ready

[kovmir]

discount 2.2.7d slackbuild is not gcc 14 ready:

cc -Wno-return-type -Wno-implicit-int -I. -g -c main.c
main.c: In function ‘main’:
main.c:311:36: error: passing argument 2 of ‘mkd_e_code_format’ from incompatible pointer type [-Wincompatible-pointer-types]
  311 |             mkd_e_code_format(doc, external_codefmt);
      |                                    ^~~~~~~~~~~~~~~~
      |                                    |
      |                                    char * (*)(char *, int,  char *)
In file included from main.c:12:
./mkdio.h:71:31: note: expected ‘mkd_callback_t’ {aka ‘char * (*)(const char *, const int,  void *)’} but argument is of type ‘char * (*)(char *, int,  char *)’
   71 | void mkd_e_code_format(void*, mkd_callback_t);
      |                               ^~~~~~~~~~~~~~
make: *** [Makefile:127: main.o] Error 1

Here is a fix patch.

[Ponce]

sorry, just saw this: pushed in a dedicated branch, thanks!