diff --git a/lib/std/crypto/benchmark.zig b/lib/std/crypto/benchmark.zig
index 0cc2c1d3ad..8f961f80f2 100644
--- a/lib/std/crypto/benchmark.zig
+++ b/lib/std/crypto/benchmark.zig
@@ -133,7 +133,7 @@ fn printPad(stdout: var, s: []const u8) !void {
 }
 
 pub fn main() !void {
-    const stdout = &std.io.getStdOut().outStream().stream;
+    const stdout = std.io.getStdOut().outStream();
 
     var buffer: [1024]u8 = undefined;
     var fixed = std.heap.FixedBufferAllocator.init(buffer[0..]);
diff --git a/src-self-hosted/clang_options.zig b/src-self-hosted/clang_options.zig
index 70525655de..1b70c71dac 100644
--- a/src-self-hosted/clang_options.zig
+++ b/src-self-hosted/clang_options.zig
@@ -95,6 +95,16 @@ pub fn flagpd1(name: []const u8) CliArg {
     };
 }
 
+/// Shortcut function for initializing a `CliArg`
+pub fn flagpsl(name: []const u8) CliArg {
+    return .{
+        .name = name,
+        .syntax = .flag,
+        .zig_equivalent = .other,
+        .psl = true,
+    };
+}
+
 /// Shortcut function for initializing a `CliArg`
 pub fn joinpd1(name: []const u8) CliArg {
     return .{
diff --git a/src-self-hosted/clang_options_data.zig b/src-self-hosted/clang_options_data.zig
index 0b3a3b9416..2afe7f5681 100644
--- a/src-self-hosted/clang_options_data.zig
+++ b/src-self-hosted/clang_options_data.zig
@@ -34,10 +34,38 @@ flagpd1("M"),
     .pd2 = false,
     .psl = false,
 },
-flagpd1("MG"),
-flagpd1("MM"),
-flagpd1("MMD"),
-flagpd1("MP"),
+.{
+    .name = "MG",
+    .syntax = .flag,
+    .zig_equivalent = .dep_file,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
+.{
+    .name = "MM",
+    .syntax = .flag,
+    .zig_equivalent = .dep_file,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
+.{
+    .name = "MMD",
+    .syntax = .flag,
+    .zig_equivalent = .dep_file,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
+.{
+    .name = "MP",
+    .syntax = .flag,
+    .zig_equivalent = .dep_file,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
 .{
     .name = "MV",
     .syntax = .flag,
@@ -517,14 +545,7 @@ sepd1("Zlinker-input"),
     .pd2 = false,
     .psl = true,
 },
-.{
-    .name = "MT",
-    .syntax = .flag,
-    .zig_equivalent = .other,
-    .pd1 = true,
-    .pd2 = false,
-    .psl = true,
-},
+flagpsl("MT"),
 .{
     .name = "MTd",
     .syntax = .flag,
@@ -5463,9 +5484,30 @@ joinpd1("G="),
     .pd2 = false,
     .psl = false,
 },
-jspd1("MJ"),
-jspd1("MQ"),
-jspd1("MT"),
+.{
+    .name = "MJ",
+    .syntax = .joined_or_separate,
+    .zig_equivalent = .dep_file,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
+.{
+    .name = "MQ",
+    .syntax = .joined_or_separate,
+    .zig_equivalent = .dep_file,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
+.{
+    .name = "MT",
+    .syntax = .joined_or_separate,
+    .zig_equivalent = .dep_file,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
 .{
     .name = "AI",
     .syntax = .joined_or_separate,
@@ -5589,7 +5631,7 @@ jspd1("MT"),
 .{
     .name = "MP",
     .syntax = .joined,
-    .zig_equivalent = .other,
+    .zig_equivalent = .dep_file,
     .pd1 = true,
     .pd2 = false,
     .psl = true,
diff --git a/test/tests.zig b/test/tests.zig
index 7f3e55ec7a..9ada899b1b 100644
--- a/test/tests.zig
+++ b/test/tests.zig
@@ -152,17 +152,15 @@ const test_targets = blk: {
             .link_libc = true,
         },
 
-        // TODO disabled only because the CI server has such an old qemu that
-        // qemu-riscv64 isn't available :(
-        //TestTarget{
-        //    .target = .{
-        //        .cpu_arch = .riscv64,
-        //        .os_tag = .linux,
-        //        .abi = .none,
-        //    },
-        //},
+        TestTarget{
+            .target = .{
+                .cpu_arch = .riscv64,
+                .os_tag = .linux,
+                .abi = .none,
+            },
+        },
 
-        // https://github.com/ziglang/zig/issues/4485
+        // https://github.com/ziglang/zig/issues/4863
         //TestTarget{
         //    .target = .{
         //        .cpu_arch = .riscv64,
diff --git a/tools/update_clang_options.zig b/tools/update_clang_options.zig
index dd46f72d4c..fd6edbdf2c 100644
--- a/tools/update_clang_options.zig
+++ b/tools/update_clang_options.zig
@@ -206,6 +206,34 @@ const known_options = [_]KnownOpt{
         .name = "MF",
         .ident = "dep_file",
     },
+    .{
+        .name = "MT",
+        .ident = "dep_file",
+    },
+    .{
+        .name = "MG",
+        .ident = "dep_file",
+    },
+    .{
+        .name = "MJ",
+        .ident = "dep_file",
+    },
+    .{
+        .name = "MM",
+        .ident = "dep_file",
+    },
+    .{
+        .name = "MMD",
+        .ident = "dep_file",
+    },
+    .{
+        .name = "MP",
+        .ident = "dep_file",
+    },
+    .{
+        .name = "MQ",
+        .ident = "dep_file",
+    },
     .{
         .name = "F",
         .ident = "framework_dir",
@@ -336,7 +364,12 @@ pub fn main() anyerror!void {
         }
         const syntax = objSyntax(obj);
 
-        if (knownOption(name)) |ident| {
+        if (std.mem.eql(u8, name, "MT") and syntax == .flag) {
+            // `-MT foo` is ambiguous because there is also an -MT flag
+            // The canonical way to specify the flag is with `/MT` and so we make this
+            // the only way.
+            try stdout.print("flagpsl(\"{}\"),\n", .{name});
+        } else if (knownOption(name)) |ident| {
             try stdout.print(
                 \\.{{
                 \\    .name = "{}",
@@ -350,6 +383,8 @@ pub fn main() anyerror!void {
             , .{ name, syntax, ident, pd1, pd2, pslash });
         } else if (pd1 and !pd2 and !pslash and syntax == .flag) {
             try stdout.print("flagpd1(\"{}\"),\n", .{name});
+        } else if (!pd1 and !pd2 and pslash and syntax == .flag) {
+            try stdout.print("flagpsl(\"{}\"),\n", .{name});
         } else if (pd1 and !pd2 and !pslash and syntax == .joined) {
             try stdout.print("joinpd1(\"{}\"),\n", .{name});
         } else if (pd1 and !pd2 and !pslash and syntax == .joined_or_separate) {