[gcc(refs/users/iains/heads/d-for-darwin)] D, Darwin, PPC : Declare support for libphobos.

[Iain D Sandoe]

https://gcc.gnu.org/g:6406292c36c7484d43c7867a3011c2d1f91679f0

commit 6406292c36c7484d43c7867a3011c2d1f91679f0
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Fri Dec 11 01:02:02 2020 +0000

    D, Darwin, PPC : Declare support for libphobos.
    
    Although there remains work to do on the math library, for
    long double most of the functionality is available.

Diff:
---
 libphobos/configure.tgt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libphobos/configure.tgt b/libphobos/configure.tgt
index 88c027d0c28..e5e08655193 100644
--- a/libphobos/configure.tgt
+++ b/libphobos/configure.tgt
@@ -43,6 +43,9 @@ case "${target}" in
 	LIBPHOBOS_SUPPORTED=yes
 	LIBDRUNTIME_ONLY=yes
 	;;
+  power*-*-darwin*)
+	LIBPHOBOS_SUPPORTED=yes
+	;;
   riscv*-*-linux*)
 	LIBPHOBOS_SUPPORTED=yes
 	;;