chku,Wall

src/chku.c: In function ‘main’:
src/chku.c:40:14: warning: unused variable ‘aur’ [-Wunused-variable]
   40 |          int aur = isaur(os_name);
      |              ^~~
src/chku.c: In function ‘listguestupd’:
src/chku.c:107:18: warning: unused variable ‘g’ [-Wunused-variable]
  107 |    int ret1 = 0, g = 0, b = 255, u = 0;
      |                  ^
src/chku.c:106:28: warning: unused variable ‘fb’ [-Wunused-variable]
  106 |    char *temp, *guest_os, *fb;
      |                            ^~
In file included from src/chku.c:7:
src/chku.h: At top level:
src/chku.h:61:15: warning: ‘readtomem’ declared ‘static’ but never defined [-Wunused-function]
   61 | static size_t readtomem(void *contents, size_t size, size_t nmemb, void *stream);
      |               ^~~~~~~~~
src/chku.h:123:12: warning: ‘copy_data’ declared ‘static’ but never defined [-Wunused-function]
  123 | static int copy_data(struct archive *ar, struct archive *aw);
      |            ^~~~~~~~~
src/confreader.c: In function ‘foundconf’:
src/confreader.c:15:8: warning: unused variable ‘l’ [-Wunused-variable]
   15 |    int l;
      |        ^
src/confreader.c: In function ‘read_conf’:
src/confreader.c:53:8: warning: unused variable ‘a’ [-Wunused-variable]
   53 |    int a = 0;
      |        ^
In file included from src/network.c:5:
src/chku.h:123:12: warning: ‘copy_data’ declared ‘static’ but never defined [-Wunused-function]
  123 | static int copy_data(struct archive *ar, struct archive *aw);
      |            ^~~~~~~~~
src/os.c: In function ‘freebsdlatest’:
src/os.c:476:15: warning: unused variable ‘temp1’ [-Wunused-variable]
  476 |    char temp, temp1;
      |               ^~~~~
src/os.c:476:9: warning: unused variable ‘temp’ [-Wunused-variable]
  476 |    char temp, temp1;
      |         ^~~~
src/os.c: In function ‘openbsdlatest’:
src/os.c:608:15: warning: unused variable ‘temp1’ [-Wunused-variable]
  608 |    char temp, temp1;
      |               ^~~~~
src/os.c:608:9: warning: unused variable ‘temp’ [-Wunused-variable]
  608 |    char temp, temp1;
      |         ^~~~
In file included from src/os.c:16:
src/chku.h: At top level:
src/chku.h:61:15: warning: ‘readtomem’ declared ‘static’ but never defined [-Wunused-function]
   61 | static size_t readtomem(void *contents, size_t size, size_t nmemb, void *stream);
      |               ^~~~~~~~~
src/chku.h:123:12: warning: ‘copy_data’ declared ‘static’ but never defined [-Wunused-function]
  123 | static int copy_data(struct archive *ar, struct archive *aw);
      |            ^~~~~~~~~
src/os.c: In function ‘pkgpattern’:
src/os.c:409:11: warning: ‘ret’ may be used uninitialized [-Wmaybe-uninitialized]
  409 |    return ret;
      |           ^~~
src/os.c:380:10: note: ‘ret’ was declared here
  380 |    char *ret;
      |          ^~~
src/os.c: In function ‘pkgdbpath’:
src/os.c:431:7: warning: ‘ret’ may be used uninitialized [-Wmaybe-uninitialized]
  431 |    if (ret) { return ret; }
      |       ^
src/os.c:413:10: note: ‘ret’ was declared here
  413 |    char *ret;
      |          ^~~
src/os.c: In function ‘isbranched’:
src/os.c:695:11: warning: ‘ret’ may be used uninitialized [-Wmaybe-uninitialized]
  695 |    return ret;
      |           ^~~
src/os.c:644:10: note: ‘ret’ was declared here
  644 |    char *ret;
      |          ^~~
In file included from src/stringhandler.c:8:
src/chku.h:61:15: warning: ‘readtomem’ declared ‘static’ but never defined [-Wunused-function]
   61 | static size_t readtomem(void *contents, size_t size, size_t nmemb, void *stream);
      |               ^~~~~~~~~
src/chku.h:123:12: warning: ‘copy_data’ declared ‘static’ but never defined [-Wunused-function]
  123 | static int copy_data(struct archive *ar, struct archive *aw);
      |            ^~~~~~~~~
src/stringhandler.c: In function ‘append’:
src/stringhandler.c:38:11: warning: using a dangling pointer to ‘buff’ [-Wdangling-pointer=]
   38 |    return res;
      |           ^~~
src/stringhandler.c:28:9: note: ‘buff’ declared here
   28 |    char buff[50];
      |         ^~~~
src/stringhandler.c: In function ‘reject’:
src/stringhandler.c:52:11: warning: using a dangling pointer to ‘buff’ [-Wdangling-pointer=]
   52 |    return res;
      |           ^~~
src/stringhandler.c:42:9: note: ‘buff’ declared here
   42 |    char buff[50];
      |         ^~~~
In file included from src/file.c:8:
src/chku.h:61:15: warning: ‘readtomem’ declared ‘static’ but never defined [-Wunused-function]
   61 | static size_t readtomem(void *contents, size_t size, size_t nmemb, void *stream);
      |               ^~~~~~~~~
In file included from src/remoterepo.c:5:
src/chku.h:61:15: warning: ‘readtomem’ declared ‘static’ but never defined [-Wunused-function]
   61 | static size_t readtomem(void *contents, size_t size, size_t nmemb, void *stream);
      |               ^~~~~~~~~
src/chku.h:123:12: warning: ‘copy_data’ declared ‘static’ but never defined [-Wunused-function]
  123 | static int copy_data(struct archive *ar, struct archive *aw);
      |            ^~~~~~~~~