quagga: Fix AC_CHECK_LIB for libreadline

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-protocols/quagga/files/0001-configure-Check-for-readline-instead-of-main-in-libr.patch

@@ -0,0 +1,32 @@
+From 675b35b7ed416c837267e493b157167319e8f5fa Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 1 Sep 2022 11:01:53 -0700
+Subject: [PATCH] configure: Check for readline() instead of main() in
+ libreadline
+
+while checking for presense of libreadline, poke for a function which is
+provided by libreadline, main is not provided by it, so modern compiler
+toolchains may complain about it.
+
+Upstream-Status: Submitted [https://github.com/Quagga/quagga/pull/9]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ configure.ac | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index ed279f48..d444ab4a 100755
+--- a/configure.ac
++++ b/configure.ac
+@@ -754,7 +754,7 @@ dnl	 [TODO] on Linux, and in [TODO] on Solaris.
+ 	      )]
+ 	    )]
+ 	  )
+-         AC_CHECK_LIB(readline, main, LIBREADLINE="-lreadline $LIBREADLINE",,
++         AC_CHECK_LIB(readline, readline, LIBREADLINE="-lreadline $LIBREADLINE",,
+                       "$LIBREADLINE")
+          if test $ac_cv_lib_readline_main = no; then
+            AC_MSG_ERROR([vtysh needs libreadline but was not found and usable on your system.])
+-- 
+2.37.3
+

meta-networking/recipes-protocols/quagga/quagga_1.2.4.bb

@@ -1,5 +1,7 @@
 require quagga.inc
 
+SRC_URI += "file://0001-configure-Check-for-readline-instead-of-main-in-libr.patch"
+
 SRC_URI[md5sum] = "eced21b054d71c9e1b7c6ac43286a166"
 SRC_URI[sha256sum] = "e364c082c3309910e1eb7b068bf39ee298e2f2f3f31a6431a5c115193bd653d3"