linux: add fbtft kernel extension

Not sure I'm doing this right, but here goes. With this extension enabled the kernel will not build. It gives the error below. The problem seems to be with line 21 of linux-ext-fbtft.mk. I have edited the file to make it work and have attached the changed file.

- Richard

$ make linux

patches

gzip -d -c /home/richard/buildroot/dl/linux-c256eb9968c8997dce47350d2075e42f1b3991d3.tar.gz | tar --strip-components=1 -C /home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3 -xf -

if [ -e /home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3/drivers/video/fbdev ]; then dest=/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3/drivers/video/fbdev ; else dest=/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3/drivers/video/ ; fi ; mkdir -p ${dest}/fbtft; cp -dpfr /home/richard/buildroot/output/build/fbtft-274035404701245e7491c0c6471c5b72ade4d491/* ${dest}/fbtft/ ; echo 'source "drivers/video/fbdev/fbtft/Kconfig"' >>
${dest}/Kconfig ; echo 'obj-y += fbtft/' >> ${dest}/Makefile
for p in board/raspi/kernel-patches/ ; do if echo $p | grep -q -E
"^ftp://|^http://" ; then support/scripts/apply-patches.sh /home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3 /home/richard/buildroot/dl basename $p ; elif test -d $p ; then support/scripts/apply-patches.sh /home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3
$p linux-\*.patch ; else support/scripts/apply-patches.sh /home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3 dirname $p basename $p ; fi done

/usr/bin/install -m 0644 "board/raspi/linux.config"
/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3/arch/arm/configs/buildroot_defconfig PATH="/home/richard/buildroot/output/host/bin:/home/richard/buildroot/output/host/sbin:/home/richard/buildroot/output/host/usr/bin:/home/richard/buildroot/output/host/usr/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/home/richard/Android/adt-bundle-linux-x86-20130514/sdk/platform-tools:/home/richard/Android/adt-bundle-linux-x86-20130514/sdk/platform-tools" /usr/bin/make -j1 HOSTCC="/usr/bin/gcc" HOSTCFLAGS="" ARCH=arm
INSTALL_MOD_PATH=/home/richard/buildroot/output/target CROSS_COMPILE="
/home/richard/buildroot/output/host/usr/bin/arm-buildroot-linux-uclibcgnueabi-"
DEPMOD=/home/richard/buildroot/output/host/sbin/depmod -C
/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3
buildroot_defconfig
make[1]: Entering directory
'/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3'
HOSTCC scripts/basic/fixdep
HOSTCC scripts/kconfig/conf.o
SHIPPED scripts/kconfig/zconf.tab.c
SHIPPED scripts/kconfig/zconf.lex.c
SHIPPED scripts/kconfig/zconf.hash.c
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
drivers/video/Kconfig:2525: can't open file
"drivers/video/fbdev/fbtft/Kconfig"
/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3/scripts/kconfig/Makefile:105:
recipe for target 'buildroot_defconfig' failed
make[2]: *** [buildroot_defconfig] Error 1
Makefile:503: recipe for target 'buildroot_defconfig' failed
make[1]: *** [buildroot_defconfig] Error 2
make[1]: Leaving directory
'/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3'
package/pkg-generic.mk:172: recipe for target
'/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3/.stamp_configured'
failed
make: ***
[/home/richard/buildroot/output/build/linux-c256eb9968c8997dce47350d2075e42f1b3991d3/.stamp_configured]
Error 2

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