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Paul Eggert authored
Rewrite an ancient Alpha ELF check to port to a future Gnulib version that may require AC_CHECK_DECL to be set up properly as per the ‘Expanded Before Required’ section of the Autoconf manual Autoconf doesn’t guarantee that AC_CHECK_DECL will work properly if called conditionally (e.g., inside a shell ‘case’ statement) and the condition is false. Problem reported by Bruno Haible in: https://lists.gnu.org/r/bug-gnulib/2020-01/msg00088.html * configure.ac (LD_SWITCH_MACHINE): Migrate ELF check later, when AC_CHECK_DECL is properly set up.
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