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Need for Cross-Compilation In the context of Embedded Linux, target devices often lack the resources to compile their own binaries due to their constrained hardware. Consequently, developers need to compile these binaries on a more powerful host device and then transfer them to the target device. This process necessitates a toolchain designed to compile binaries for the target architecture on the host device. In the context of a Raspberry Pi 4, this would involve compiling binaries for an aarch64 target architecture on an x86_64 host device. Since we are using Buildroot to configure and generate the images, we have a few options for cross-compiling toolchains. We can either use: The internal toolchain built by Buildroot. An external toolchain available online. You can read more about the Cross-Compilation toolchain in Buildroot's Manual External Toolchain If an external toolchain is preferred for application development, a few options are available: Download and Set Path Obtain a