ead: fix compilation with GCC 15

GCC 15 defaults to C23, where an empty parameter list "()" means
"(void)" instead of an unspecified argument list. This broke two spots
in the bundled tinysrp sources:

  - The interrupt() signal handler in t_truerand.c was declared with
    "()", so its type became "void (*)(void)" and no longer matched the
    "void (*)(int)" expected by signal():

      t_truerand.c:100:32: error: passing argument 2 of 'signal' from
      incompatible pointer type [-Wincompatible-pointer-types]

    Give it the proper signal handler signature instead.

  - The pre-ANSI fallback in t_defines.h declared strchr(), strrchr()
    and strtok() with "()". ead.c is compiled without -DHAVE_CONFIG_H,
    so STDC_HEADERS is undefined and that legacy branch is taken, where
    the zero-argument prototypes now conflict with the declarations in
    the standard headers:

      tinysrp/t_defines.h:90:30: error: conflicting types for 'strtok';
      have 'char *(void)'

    Drop the dead K&R branch and include <stdlib.h> and <string.h>
    unconditionally; the library's own objects already take this path
    via config.h.

Assisted-by: Claude:claude-opus-4-8
Link: https://github.com/openwrt/openwrt/pull/23955
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

diff --git a/package/network/services/ead/src/tinysrp/t_defines.h b/package/network/services/ead/src/tinysrp/t_defines.h
index 4128093f6069db6a0d85121051fbe6df3a7fbfe0..1a8e4034d129fe1831b84a86aacaad73265ebd24 100644 (file)
--- a/package/network/services/ead/src/tinysrp/t_defines.h
+++ b/package/network/services/ead/src/tinysrp/t_defines.h
@@ -79,19 +79,8 @@
 #endif
 #endif
 
-#if STDC_HEADERS
 #include <stdlib.h>
 #include <string.h>
-#else /* not STDC_HEADERS */
-#ifndef HAVE_STRCHR
-#define strchr index
-#define strrchr rindex
-#endif
-char *strchr(), *strrchr(), *strtok();
-#ifndef HAVE_MEMCPY
-#define memcpy(d, s, n) bcopy((s), (d), (n))
-#endif
-#endif /* not STDC_HEADERS */
 
 #include <sys/types.h>
 

diff --git a/package/network/services/ead/src/tinysrp/t_truerand.c b/package/network/services/ead/src/tinysrp/t_truerand.c
index fa0d6ce60382c8ebec11183e87f9c07317430beb..f46a1e18575a4ba4b14f0803fce48d0aea22891e 100644 (file)
--- a/package/network/services/ead/src/tinysrp/t_truerand.c
+++ b/package/network/services/ead/src/tinysrp/t_truerand.c
@@ -86,7 +86,7 @@ tick()
 }
 
 static void
-interrupt()
+interrupt(int sig)
 {
        if (count) {
 #ifdef OLD_TRUERAND