Linux-AArch64 build fails with error: 'cstdint' file not found

[navaneethshan]

build_copy_runtimes.sh on Linux-AArch64 build fails on GitHub hosted runner with below error:

/home/runner/work/cpullvm-toolchain/cpullvm-toolchain/build/_deps/eld-src/include/eld/PluginAPI/DiagnosticEntry.h:10:10: fatal error: 'cstdint' file not found

Build link: https://github.com/qualcomm/cpullvm-toolchain/actions/runs/26102294978/job/76785751364