Binary package “gnat-8-sjlj-aarch64-linux-gnu” in ubuntu focal
GNU Ada compiler (setjump/longjump runtime library)
GNAT is a compiler for the Ada programming language. It produces optimized
code on platforms supported by the GNU Compiler Collection (GCC).
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This package provides an alternative runtime library that handles
exceptions using the setjump/longjump mechanism (as a static library
only). You can install it to supplement the normal compiler.