From 84fb81483703dfcc26e784256b6a19d75e8e58ee Mon Sep 17 00:00:00 2001
From: Matthew Smith <matthew@gentoo.org>
Date: Sun, 12 Feb 2023 10:18:02 +0000
Subject: [PATCH] autoconf: Fix -Wint-conversion in test

-Wint-conversion becomes an error by default in clang-16, causing the
program_invocation_short_name test to fail.

Bug: https://bugs.gentoo.org/893910
--- a/configure.ac
+++ b/configure.ac
@@ -87,7 +87,7 @@ case ${host_os} in
     ])
     AC_CHECK_FUNCS([pselect])
     AC_CACHE_CHECK(for program_invocation_short_name, ac_cv_program_invocation_short_name,[
-        AC_TRY_LINK([extern char* program_invocation_short_name;],[return program_invocation_short_name;],
+        AC_TRY_LINK([extern char* program_invocation_short_name;],[return program_invocation_short_name[0];],
             [ac_cv_program_invocation_short_name=yes],
             [ac_cv_program_invocation_short_name=no]
         )
@@ -95,7 +95,7 @@ case ${host_os} in
     if test "x$ac_cv_program_invocation_short_name" = "xyes"; then
         AC_DEFINE(HAVE_PROGRAM_INVOCATION_SHORT_NAME, 1, [Define if you have program_invocation_short_name])
         AC_CACHE_CHECK(if program_invocation_short_name is declared in errno.h, ac_cv_program_invocation_short_name_errno_h,[
-            AC_TRY_LINK([#include <errno.h>],[return program_invocation_short_name;],
+            AC_TRY_LINK([#include <errno.h>],[return program_invocation_short_name[0];],
                 [ac_cv_program_invocation_short_name_errno_h=yes],
                 [ac_cv_program_invocation_short_name_errno_h=no]
             )
-- 
2.39.1