ci: Guess the native host when not cross compiling

Author: MarcoFalke

ci/test/00_setup_env.sh

@@ -23,8 +23,8 @@ export MAKEJOBS=${MAKEJOBS:--j4}
 export BASE_SCRATCH_DIR=${BASE_SCRATCH_DIR:-$BASE_ROOT_DIR/ci/scratch/}
 # What host to compile for. See also ./depends/README.md
 # Tests that need cross-compilation export the appropriate HOST.
-# Tests that run natively, do not set a HOST, but we assume x86_64 here if the calling environment did not set a HOST
-export HOST=${HOST:-x86_64-unknown-linux-gnu}
+# Tests that run natively guess the host
+export HOST=${HOST:-$("$BASE_ROOT_DIR/depends/config.guess")}
 # Whether to prefer BusyBox over GNU utilities
 export USE_BUSY_BOX=${USE_BUSY_BOX:-false}
 export RUN_UNIT_TESTS=${RUN_UNIT_TESTS:-true}