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# On x86 targets, two floating-point double values can't be reliably compared

# for inequality due to excess precision of 80387 floating-point coprocessor.

# Use -mpc64 to force 80387 floating-point precision to 64 bits.  This option

# has no effect on SSE, but it is needed in case of -m32 on x86_64 targets.

if { [istarget i?86-*-darwin*]

     || [istarget i?86-*-linux*]

     || [istarget i?86-*-kfreebsd*-gnu]

     || [istarget i?86-*-knetbsd*-gnu]

     || [istarget i?86-*-solaris2*]

     || [istarget x86_64-*-darwin*]

     || [istarget x86_64-*-linux*]

     || [istarget x86_64-*-kfreebsd*-gnu]

     || [istarget x86_64-*-knetbsd*-gnu]

     || [istarget x86_64-*-solaris2*] } {

        set additional_flags "-mpc64"

}

return 0