Default powerpc to mcs instead of roslyn (#5326)

It is crashing still way more than it works and now that the mcs
configuration works again we should default to that to make our CI
more pleasant.

diff --git a/configure.ac b/configure.ac
index 4933db5a93437e172511a6944f6f9d6648fd3cf6..0abf9ebb4695b9b1866e7d92408c193b547d1518 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -786,7 +786,10 @@ if test $csc_compiler = default; then
    if test $endian = big; then
       csc_compiler=mcs
    elif test $endian = little; then
-      csc_compiler=roslyn
+      case "$host" in
+        powerpc*) csc_compiler=mcs ;;
+        *) csc_compiler=roslyn ;;
+      esac
    else
       csc_compiler=mcs
    fi