kernel: enable -c menuconfig

This patch allows the user to run menuconfig from bitbake.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>

recipes-kernel/linux/files/0001-menuconfig-mconf-cfg-Allow-specification-of-ncurses-.patch

@@ -0,0 +1,51 @@
+From 846b11d8c834af4fa62393dadb490ea8246b332c Mon Sep 17 00:00:00 2001
+From: Bruce Ashfield <bruce.ashfield@windriver.com>
+Date: Mon, 2 Jul 2018 23:10:28 -0400
+Subject: [PATCH] menuconfig,mconf-cfg: Allow specification of ncurses location
+
+In some cross build environments such as the Yocto Project build
+environment it provides an ncurses library that is compiled
+differently than the host's version.  This causes display corruption
+problems when the host's curses includes are used instead of the
+includes from the provided compiler are overridden.  There is a second
+case where there is no curses libraries at all on the host system and
+menuconfig will just fail entirely.
+
+The solution is simply to allow an override variable in
+check-lxdialog.sh for environments such as the Yocto Project.  Adding
+a CROSS_CURSES_LIB and CROSS_CURSES_INC solves the issue and allowing
+compiling and linking against the right headers and libraries.
+
+Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
+cc: Michal Marek <mmarek@suse.cz>
+cc: linux-kbuild@vger.kernel.org
+Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
+---
+ scripts/kconfig/mconf-cfg.sh | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+ mode change 100755 => 100644 scripts/kconfig/mconf-cfg.sh
+
+diff --git a/scripts/kconfig/mconf-cfg.sh b/scripts/kconfig/mconf-cfg.sh
+old mode 100755
+new mode 100644
+index c812872d7f9d..65a9b9e5b8a6
+--- a/scripts/kconfig/mconf-cfg.sh
++++ b/scripts/kconfig/mconf-cfg.sh
+@@ -4,6 +4,14 @@
+ PKG="ncursesw"
+ PKG2="ncurses"
+ 
++if [ "$CROSS_CURSES_LIB" != "" ]; then
++    echo libs=\'$CROSS_CURSES_LIB\'
++    if [ x"$CROSS_CURSES_INC" != x ]; then
++	echo cflags=\'$CROSS_CURSES_INC\'
++    fi
++    exit 0
++fi
++
+ if [ -n "$(command -v pkg-config)" ]; then
+ 	if pkg-config --exists $PKG; then
+ 		echo cflags=\"$(pkg-config --cflags $PKG)\"
+-- 
+2.20.1
+

recipes-kernel/linux/linux-mutual.inc

@@ -4,7 +4,10 @@ LICENSE = "GPLv2"
 
 LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"
 
-SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git;branch=${KBRANCH}"
+SRC_URI = " \
+    git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git;branch=${KBRANCH} \
+    file://0001-menuconfig-mconf-cfg-Allow-specification-of-ncurses-.patch \
+    "
 
 inherit kernel
 require recipes-kernel/linux/linux-yocto.inc