Wrong switches: `unreachable-code-break` and `unreachable-code-return`, at least on Termux

# Prerequisites
Yes ;)

# Current Behavior

> FAILED: vendor/llama.cpp/CMakeFiles/ggml.dir/ggml.c.o
> ccache /usr/bin/clang -DGGML_SCHED_MAX_COPIES=4 -DGGML_USE_LLAMAFILE -D_GNU_SOURCE -D_XOPEN_SOURCE=600 -I/root/downloads_Termux/llama-cpp-python/vendor/llama.cpp/. -O3 -DNDEBUG -fPIC -Wshadow -Wstrict-prototypes -Wpointer-arith -Wmissing-prototypes -Werror=implicit-int -Werror=implicit-function-declaration -Wall -Wextra -Wpedantic -Wcast-qual -Wno-unused-function -Wunreachable-code-break -Wunreachable-code-return -Wdouble-promotion -std=gnu11 -MD -MT vendor/llama.cpp/CMakeFiles/ggml.dir/ggml.c.o -MF vendor/llama.cpp/CMakeFiles/ggml.dir/ggml.c.o.d -o vendor/llama.cpp/CMakeFiles/ggml.dir/ggml.c.o -c /root/downloads_Termux/llama-cpp-python/vendor/llama.cpp/ggml.c
> clang: error: unrecognized command-line option ‘-Wunreachable-code-break’; did you mean ‘-Wunreachable-code’?
> clang: error: unrecognized command-line option ‘-Wunreachable-code-return’; did you mean ‘-Wunreachable-code’?

etc.

Related to [this](https://github.com/abetlen/llama-cpp-python/issues/695) probably.

# Environment and Context
Termux, prooted Debian, but also in standard Termux.

Box specs, in short:

> Environment at local 🎋 prooted system:
> Linux localhost 6.2.1-PRoot-Distro #1 SMP PREEMPT Thu Mar 17 16:28:22 CST 2022 aarch64 GNU/Linux
> PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games:/system/bin:/system/xbin:/data/data/com.termux/files/home/.local/bin/:/data/data/com.termux/files/usr/bin/
> LD_LIBRARY_PATH:
> CFLAGS:
> LDFLAGS:
> CPPFLAGS:
> C_INCLUDE_PATH:
> CPLUS_INCLUDE_PATH:
> USE_VULKAN: OFF

+

> Running command Building wheel for llama_cpp_python (pyproject.toml)
> *** scikit-build-core 0.9.4 using CMake 3.29.3 (wheel)
> *** Configuring CMake...
> loading initial cache file /data/data/com.termux/files/usr/tmp/tmpbfzw_fsw/build/CMakeInit.txt
> -- The C compiler identification is Clang 18.1.6
> -- The CXX compiler identification is Clang 18.1.6
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- Check for working C compiler: /data/data/com.termux/files/usr/bin/clang - skipped
> -- Detecting C compile features
> -- Detecting C compile features - done
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Check for working CXX compiler: /data/data/com.termux/files/usr/bin/clang++ - skipped
> -- Detecting CXX compile features
> -- Detecting CXX compile features - done
> -- Found Git: /data/data/com.termux/files/usr/bin/git (found version "2.45.1")
> -- Performing Test CMAKE_HAVE_LIBC_PTHREAD
> -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
> -- Check if compiler accepts -pthread
> -- Check if compiler accepts -pthread - yes
> -- Found Threads: TRUE
> -- ccache found, compilation results will be cached. Disable with LLAMA_CCACHE=OFF.
> -- CMAKE_SYSTEM_PROCESSOR: aarch64
> -- ARM detected
> -- Performing Test COMPILER_SUPPORTS_FP16_FORMAT_I3E
> -- Performing Test COMPILER_SUPPORTS_FP16_FORMAT_I3E - Failed

# Steps to ***fix***

Do this:
```
sed -i 's/-Wunreachable-code-break//g; s/-Wunreachable-code-return//g' vendor/llama.cpp/CMakeLists.txt
```
to arrive at:

> [27/27] : && /usr/bin/clang++ -O3 -DNDEBUG vendor/llama.cpp/examples/llava/CMakeFiles/llava.dir/llava.cpp.o vendor/llama.cpp/examples/llava/CMakeFiles/llava.dir/clip.cpp.o vendor/llama.cpp/examples/llava/CMakeFiles/llava-cli.dir/llava-cli.cpp.o -o vendor/llama.cpp/examples/llava/llava-cli -Wl,-rpath,/tmp/tmpqgrx623c/build/vendor/llama.cpp: vendor/llama.cpp/common/libcommon.a vendor/llama.cpp/libllama.so && :
> *** Installing project into wheel...
> -- Install configuration: "Release"
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/lib/libggml_shared.so
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/lib/cmake/Llama/LlamaConfig.cmake
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/lib/cmake/Llama/LlamaConfigVersion.cmake
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/include/ggml.h
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/include/ggml-alloc.h
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/include/ggml-backend.h
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/lib/libllama.so
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/include/llama.h
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/bin/convert.py
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/llama_cpp/libllama.so
> -- Installing: /root/downloads_Termux/llama-cpp-python/llama_cpp/libllama.so
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/lib/libllava.so
> -- Set runtime path of "/tmp/tmpqgrx623c/wheel/platlib/lib/libllava.so" to ""
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/bin/llava-cli
> -- Set runtime path of "/tmp/tmpqgrx623c/wheel/platlib/bin/llava-cli" to ""
> -- Installing: /tmp/tmpqgrx623c/wheel/platlib/llama_cpp/libllava.so
> -- Set runtime path of "/tmp/tmpqgrx623c/wheel/platlib/llama_cpp/libllava.so" to ""
> -- Installing: /root/downloads_Termux/llama-cpp-python/llama_cpp/libllava.so
> -- Set runtime path of "/root/downloads_Termux/llama-cpp-python/llama_cpp/libllava.so" to ""
> *** Making wheel...
> *** Created llama_cpp_python-0.2.76-cp311-cp311-linux_aarch64.whl...
> Building wheel for llama_cpp_python (pyproject.toml) ... done
> Created wheel for llama_cpp_python: filename=llama_cpp_python-0.2.76-cp311-cp311-linux_aarch64.whl size=3334239 sha256=da0322b5d7a676e2d0bab3e2d6cc65f888937bcc676f854e72a378fb574438f8
> Stored in directory: /root/.cache/pip/wheels/78/ec/ae/e102e407170d9e380949aaa8aafc0646a62be8208c8008f3db
> Successfully built llama_cpp_python
> Installing collected packages: llama_cpp_python
> Successfully installed llama_cpp_python-0.2.76

and

> root@localhost:~/downloads_Termux/llama-cpp-python# pip show llama-cpp-python
> Name: llama_cpp_python
> Version: 0.2.76
> Summary: Python bindings for the llama.cpp library
> Home-page:
> Author:
> Author-email: Andrei Betlen
> License: MIT
> Location: /usr/local/lib/python3.11/dist-packages
> Requires: diskcache, jinja2, numpy, typing-extensions
> Required-by:

etc.