build-script fails installing llvm

[pete.dawgg]

i try to build openelec from git but the build-script always fails after the compilation of llvm when it tries to instal llvm; this ist the error:

Code:

make[1]: Leaving directory '/home/ice/oe/OpenELEC.tv/build.OpenELEC-Generic.x86_64-6.0-devel/llvm-3.6.1/.x86_64-openelec-linux-gnu'
INSTALL llvm (target)
INSTALL llvm (host)
cp: cannot overwrite non-directory 'build.OpenELEC-Generic.x86_64-6.0-devel/image/system/usr/lib64' with directory 'build.OpenELEC-Generic.x86_64-6.0-devel/llvm-3.6.1/.install_pkg/usr/lib64'
Makefile:9: die Regel für Ziel »release« scheiterte
make: bbcode.txt done insert_posts.sh mybb_posts.csv mybb_posts.sql new newnew oej34_kunena_messages.csv oej34_kunena_messages_text.csv oej34_kunena_messages_text.sql oej34_kunena_users_banned.csv oej34_kunena_users.csv oej34_users.csv old openelecj34prod.sql posts.sh replace.sh table_posts test.csv test.txt update_sample.sql [release] Fehler 1

i already posted this in the development-forum as llvm-compilation-error (which is solved) but the build-script still fails at this point.
what can i do?
THX for your help!