tce-load -i compiletc cmake 

wget https://bitbucket.org/multicoreware/x265_git/downloads/x265_4.1.tar.gz

cd x265_4.1

sed -r '/cmake_policy.*(0025|0054)/d' -i source/CMakeLists.txt

mkdir bld
cd bld

cmake -LAH -DCMAKE_CXX_COMPILER=/usr/local/bin/clang++ -DCMAKE_C_COMPILER=/usr/local/bin/clang -DCMAKE_C_FLAGS_RELEASE="-march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe" -DCMAKE_CXX_FLAGS_RELEASE="-march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe" -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=TRUE -DGIT_ARCHETYPE=1 -DENABLE_NEON=0 -Wno-dev ../source

find . -name flags.make -type f -exec sed -i 's/-mcpu=native//g' {} \;
find . -name flags.make -type f -exec sed -i 's/-mfpu=neon//g' {} \;
find . -name flags.make -type f -exec sed -i 's/-DHAVE_NEON//g' {} \;

[-fno-rtti fails]

make [8m 0.72s]
sudo make install

[100%] Linking CXX executable x265
/tmp/tcloop/cmake/usr/local/bin/cmake -E cmake_link_script CMakeFiles/cli.dir/link.txt --verbose=1
/usr/local/bin/c++ -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe -rdynamic -Wl,-Bsymbolic,-znoexecstack CMakeFiles/cli.dir/input/input.cpp.o CMakeFiles/cli.dir/input/y4m.cpp.o CMakeFiles/cli.dir/input/yuv.cpp.o CMakeFiles/cli.dir/output/output.cpp.o CMakeFiles/cli.dir/output/raw.cpp.o CMakeFiles/cli.dir/output/reconplay.cpp.o CMakeFiles/cli.dir/output/y4m.cpp.o CMakeFiles/cli.dir/output/yuv.cpp.o CMakeFiles/cli.dir/x265.cpp.o CMakeFiles/cli.dir/x265cli.cpp.o CMakeFiles/cli.dir/abrEncApp.cpp.o -o x265  -Wl,-rpath,/mnt/sda1/usr/src/x265_4.1/bld: libx265.so.215 -lpthread -lrt -ldl 
/usr/local/bin/ld: libx265.so.215: undefined reference to `x265_cpu_neon_test'
/usr/local/bin/ld: libx265.so.215: undefined reference to `x265_cpu_fast_neon_mrc_test'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/cli.dir/build.make:261: x265] Error 1
make[2]: Leaving directory '/mnt/sda1/usr/src/x265_4.1/bld'
make[1]: *** [CMakeFiles/Makefile2:233: CMakeFiles/cli.dir/all] Error 2
make[1]: Leaving directory '/mnt/sda1/usr/src/x265_4.1/bld'
make: *** [Makefile:139: all] Error 2
Command exited with non-zero status 2