From cdee4eb8b18288db6280814144bf1bcfca21f224 Mon Sep 17 00:00:00 2001
From: Kamil Rytarowski <n54@gmx.com>
Date: Sun, 29 Sep 2019 18:07:38 +0200
Subject: [PATCH 4/4] Regenerate unix/configure

---
 unix/configure | 54 ++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 52 insertions(+), 2 deletions(-)

diff --git a/unix/configure b/unix/configure
index d29372e19..e9607db4f 100755
--- a/unix/configure
+++ b/unix/configure
@@ -7926,7 +7926,30 @@ $as_echo "#define HAVE_MTSAFE_GETHOSTBYADDR 1" >>confdefs.h
 
 
 else
-    ac_fn_c_check_func "$LINENO" "gethostbyname_r" "ac_cv_func_gethostbyname_r"
+
+    # Avoids picking hidden internal symbol from libc
+    ac_fn_c_check_decl "$LINENO" "gethostbyname_r" "ac_cv_have_decl_gethostbyname_r" "#include <netdb.h>
+"
+if test "x$ac_cv_have_decl_gethostbyname_r" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETHOSTBYNAME_R $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+    tcl_cv_api_gethostbyname_r=yes
+else
+  tcl_cv_api_gethostbyname_r=no
+fi
+
+
+
+    if test "$tcl_cv_api_gethostbyname_r" = yes; then
+	ac_fn_c_check_func "$LINENO" "gethostbyname_r" "ac_cv_func_gethostbyname_r"
 if test "x$ac_cv_func_gethostbyname_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyname_r with 6 args" >&5
@@ -8063,7 +8086,32 @@ $as_echo "#define HAVE_GETHOSTBYNAME_R 1" >>confdefs.h
 
 fi
 
-    ac_fn_c_check_func "$LINENO" "gethostbyaddr_r" "ac_cv_func_gethostbyaddr_r"
+    fi
+
+
+    # Avoids picking hidden internal symbol from libc
+    ac_fn_c_check_decl "$LINENO" "gethostbyaddr_r" "ac_cv_have_decl_gethostbyaddr_r" "#include <netdb.h>
+"
+if test "x$ac_cv_have_decl_gethostbyaddr_r" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETHOSTBYADDR_R $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+    tcl_cv_api_gethostbyaddr_r=yes
+else
+  tcl_cv_api_gethostbyaddr_r=no
+fi
+
+
+
+    if test "$tcl_cv_api_gethostbyaddr_r" = yes; then
+	ac_fn_c_check_func "$LINENO" "gethostbyaddr_r" "ac_cv_func_gethostbyaddr_r"
 if test "x$ac_cv_func_gethostbyaddr_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyaddr_r with 7 args" >&5
@@ -8165,6 +8213,8 @@ $as_echo "#define HAVE_GETHOSTBYADDR_R 1" >>confdefs.h
 
 fi
 
+    fi
+
 fi
 
 #---------------------------------------------------------------------------
-- 
2.21.0