Update deps/build_libs.sh

Co-authored-by: per1234 <accounts@perglass.com>

Author: MatteoPologruto

deps/build_libs.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+true  # Dummy command required to prevent first ShellCheck directive from having global scope.
+
+# shellcheck disable=SC2153 # Fix false positive of ShellCheck rule SC2153.
 export PREFIX=/opt/lib/${CROSS_COMPILE}
 
 if [ "$CROSS_COMPILER" == "" ]; then