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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# Determine whether the compiler is or may be producing universal binaries.
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# executables that work on multiple system types--known as "fat" or
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# "universal" binaries--by specifying multiple '-arch' options to the
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# compiler but only a single '-arch' option to the preprocessor. Like