commit 0e6295128c605f1cf41d897c53e6e23e893a6ffa
Author: Jaco Kroon <jaco@uls.co.za>
Date:   Mon May 15 14:50:36 2023 +0200

    configure: fix test code to match gethostbyname_r prototype. (#75)
    
    This enables the test to work with CC=clang.
    
    Without this the test for 6 args would fail with:
    
    utils.c:99:12: error: static declaration of 'gethostbyname_r' follows non-static declaration
    static int gethostbyname_r (const char *name, struct hostent *ret, char *buf,
               ^
    /usr/include/netdb.h:177:12: note: previous declaration is here
    extern int gethostbyname_r (const char *__restrict __name,
               ^
    
    Fixing the expected return type to int sorts this out.
    
    Signed-off-by: Jaco Kroon <jaco@uls.co.za>

diff --git a/configure b/configure
index 979cf7fbd2..439bba2cdc 100755
--- a/configure
+++ b/configure
@@ -17518,7 +17518,7 @@ $as_echo_n "checking for gethostbyname_r with 6 arguments... " >&6; }
 int
 main (void)
 {
-struct hostent *he = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (struct hostent **)NULL, (int *)NULL);
+int r = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (struct hostent **)NULL, (int *)NULL);
   ;
   return 0;
 }
@@ -17546,7 +17546,7 @@ $as_echo_n "checking for gethostbyname_r with 5 arguments... " >&6; }
 int
 main (void)
 {
-struct hostent *he = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (int *)NULL);
+int r = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (int *)NULL);
   ;
   return 0;
 }
diff --git a/configure.ac b/configure.ac
index 5d4187a552..db76aad6c6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -961,7 +961,7 @@ if test "x$have_gethostbyname_r_public_declaration" = "xyes"; then
         AC_LINK_IFELSE(
                 [AC_LANG_PROGRAM([#include <stdlib.h>
                                  #include <netdb.h>],
-                                [struct hostent *he = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (struct hostent **)NULL, (int *)NULL);])],
+                                [int r = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (struct hostent **)NULL, (int *)NULL);])],
                 AC_MSG_RESULT(yes)
                 AC_DEFINE([HAVE_GETHOSTBYNAME_R_6], 1, [Define to 1 if your system has gethostbyname_r with 6 arguments.]),
                 AC_MSG_RESULT(no)
@@ -971,7 +971,7 @@ if test "x$have_gethostbyname_r_public_declaration" = "xyes"; then
         AC_LINK_IFELSE(
                 [AC_LANG_PROGRAM([#include <stdlib.h>
 	                         #include <netdb.h>],
-                                [struct hostent *he = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (int *)NULL);])],
+                                [int r = gethostbyname_r((const char *)NULL, (struct hostent *)NULL, (char *)NULL, (int)0, (int *)NULL);])],
                 AC_MSG_RESULT(yes)
                 AC_DEFINE([HAVE_GETHOSTBYNAME_R_5], 1, [Define to 1 if your system has gethostbyname_r with 5 arguments.]),
                 AC_MSG_RESULT(no)