- Try to fix Leap build by disabling libcxx in stage1.

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/llvm14?expand=0&rev=3

llvm14.spec

@@ -721,6 +721,7 @@ avail_mem=$(awk '/MemAvailable/ { print $2 }' /proc/meminfo)
     -DLLVM_BUILD_TOOLS:BOOL=OFF \
     -DLLVM_BUILD_UTILS:BOOL=OFF \
     -DLLVM_BUILD_EXAMPLES:BOOL=OFF \
+    -DLLVM_BUILD_RUNTIME:BOOL=OFF \
     -DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD:BOOL=OFF \
     -DLLVM_INCLUDE_BENCHMARKS:BOOL=OFF \
     -DLLVM_INCLUDE_TESTS:BOOL=OFF \