netkit-telnet: support the cross-compile

when check the CC, only compile the object by CC, not run the object.
MCONFIG file includes more configuration, we can not clear it

Signed-off-by: Roy Li <rongqing.li@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-networking/recipes-netkit/netkit-telnet/files/cross-compile.patch

@@ -0,0 +1,48 @@
+To support the cross-compile
+
+Upstream-Status: Pending
+
+make the configure to support the cross-compile, by only to compile the
+target, and not to run it
+
+Roy Li <rongqing.li@windriver.com>
+Index: netkit-telnet-0.17/configure
+===================================================================
+--- netkit-telnet-0.17.orig/configure	2008-11-23 22:01:26.000000000 +0100
++++ netkit-telnet-0.17/configure	2008-11-23 22:05:00.000000000 +0100
+@@ -94,7 +94,7 @@
+     echo -n 'Checking if C compiler works... '
+     if (
+           $CC __conftest.c -o __conftest || exit 1
+-          ./__conftest || exit 1
++          # Idiots belong shot! ./__conftest || exit 1
+        ) >/dev/null 2>&1; then
+          echo 'yes'
+      else
+@@ -141,7 +141,7 @@
+     echo -n 'Checking if C++ compiler works... '
+     if (
+           $CXX __conftest.cc -o __conftest || exit 1
+-          ./__conftest || exit 1
++          # Iditios belong shot! ./__conftest || exit 1
+        ) >/dev/null 2>&1; then
+          echo 'yes'
+      else
+@@ -284,7 +284,7 @@
+ else
+     if (
+           $CXX $CXXFLAGS -D__USE_BSD_SIGNAL __conftest.cc  -o __conftest || exit 1
+-          ./__conftest || exit 1
++          # running still does not work./__conftest || exit 1
+        ) >/dev/null 2>&1; then
+         echo '-D__USE_BSD_SIGNAL'
+         CFLAGS="$CFLAGS -D__USE_BSD_SIGNAL"
+@@ -501,7 +501,7 @@
+ EOF
+ if (
+       $CXX $CXXFLAGS  __conftest.cc $LIBBSD -o __conftest || exit 1
+-      ./__conftest || exit 1
++      # argh! morons!./__conftest || exit 1
+    ) >/dev/null 2>&1; then
+     echo 'ok'
+ else

meta-networking/recipes-netkit/netkit-telnet/netkit-telnet_0.17.bb

@@ -8,6 +8,7 @@ SRC_URI = "ftp://ftp.uk.linux.org/pub/linux/Networking/netkit/${BP}.tar.gz \
     file://To-aviod-buffer-overflow-in-telnet.patch \
     file://Warning-fix-in-the-step-of-install.patch \
     file://telnet-xinetd \
+    file://cross-compile.patch \
 "
 
 EXTRA_OEMAKE = "INSTALLROOT=${D} SBINDIR=${sbindir} DAEMONMODE=755 \
@@ -15,7 +16,10 @@ EXTRA_OEMAKE = "INSTALLROOT=${D} SBINDIR=${sbindir} DAEMONMODE=755 \
 
 do_configure () {
     ./configure --prefix=${prefix}
-    echo "LDFLAGS=${LDFLAGS}" > MCONFIG
+    sed -e 's#^CFLAGS=\(.*\)$#CFLAGS= -D_GNU_SOURCE \1#' \
+        -e 's#^CXXFLAGS=\(.*\)$#CXXFLAGS= -D_GNU_SOURCE \1#' \
+        -e 's#^LDFLAGS=.*$#LDFLAGS= ${LDFLAGS}#' \
+        -i MCONFIG
 }
 
 do_compile () {