Disable thread_local for apple clang that is not up-to-date (new clang is fine, but I can't update clang on the IPU slave)
Disable thread_local for apple clang that is not up-to-date (new clang is fine, but I can't update clang on the IPU slave)

Signed-off-by: Ian Bell <6f1c5b737f3c5cff42a9b8f8dcfce305d97fd07b@gmail.com>

DANA-Laboratory/CoolProp,JonWel/CoolProp,JonWel/CoolProp,dcprojects/CoolProp,JonWel/CoolProp,JonWel/CoolProp,DANA-Laboratory/CoolProp,JonWel/CoolProp,JonWel/CoolProp,dcprojects/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,dcprojects/CoolProp,henningjp/CoolProp,dcprojects/CoolProp,JonWel/CoolProp,dcprojects/CoolProp,DANA-Laboratory/CoolProp,henningjp/CoolProp,DANA-Laboratory/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,dcprojects/CoolProp,DANA-Laboratory/CoolProp,DANA-Laboratory/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,dcprojects/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,DANA-Laboratory/CoolProp,henningjp/CoolProp,henningjp/CoolProp,henningjp/CoolProp