mio 6d60517853 community/enscript: fix build with gcc 15
Fix getenv/getopt and other function prototypes with gcc 15.

```
getopt.c:366:21: error: too many arguments to function 'getenv'; expected 0, have 1
  366 |   posixly_correct = getenv ("POSIXLY_CORRECT");
      |                     ^~~~~~  ~~~~~~~~~~~~~~~~~
getopt.c:214:7: note: declared here
  214 | char *getenv ();
      |       ^~~~~~
```

```
getopt.c:922:1: error: number of arguments doesn't match prototype
  922 | {
      | ^
In file included from getopt.c:113:
getopt.h:108:12: error: prototype declaration
  108 | extern int getopt ();
      |            ^~~~~~
```

```
regex.c:3565:13: error: too many arguments to function 're_match_2_internal'; expected 0, have 8
 3565 |       val = re_match_2_internal (bufp, string1, size1, string2, size2,
      |             ^~~~~~~~~~~~~~~~~~~  ~~~~
regex.c:339:12: note: declared here
  339 | static int re_match_2_internal ();
      |            ^~~~~~~~~~~~~~~~~~~
```
2025-09-11 11:57:07 +00:00
..