Check for feenableexcept() explicitly #110
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musl provides <fenv.h>, but not the non-standard feenableexcept() function, so using feenableexcept() whenever <fenv.h> was present caused build failures on musl. Instead, explicitly check for the non-standard function we want to use.
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musl provides <fenv.h>, but not the non-standard feenableexcept() function, so using feenableexcept() whenever <fenv.h> was present caused build failures on musl. Instead, explicitly check for the non-standard function we want to use.