[Flang] Update build documentation
authorPeter Steinfeld <psteinfeld@nvidia.com>
Tue, 23 Aug 2022 20:18:04 +0000 (13:18 -0700)
committerPeter Steinfeld <psteinfeld@nvidia.com>
Fri, 9 Sep 2022 13:51:53 +0000 (06:51 -0700)
commit49dab97e3cf75416960d3a5362cf2db06a84281c
treed7d786ad079d5b5dcfc475dfc2a838a0fb34cf86
parentc7750c522e6d4fd2b7a67da59c38444f666308d2
[Flang] Update build documentation

Changes to build instructions based on the latest requirements with
compiler-rt.

Differential Revision: https://reviews.llvm.org/D131041
flang/README.md