[Bug bootstrap/91034] In tree build of gmp fails on Raspberry Pi4 (ARM Cortex A72) with `mls r1,r4,r8,r11' not supported in ARM mode

[andrewm.roberts at sky dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91034

--- Comment #5 from Andrew Roberts <andrewm.roberts at sky dot com> ---
OK I tried again using the latest gmp snapshot:
 gmp-6.1.99-20190630.tar.lz 

I still get the same error.