lang/zig: unbreak the build

msync() might return EPERM now.

https://github.com/ziglang/zig/pull/18701

lang/zig/Makefile

@@ -6,7 +6,7 @@ BROKEN-powerpc64 =	ld: error: undefined symbol: __subkf3 (and others)
 COMMENT =	zig compiler and toolchain
 
 DISTNAME =	zig-0.11.0
-REVISION =	1
+REVISION =	2
 
 GH_ACCOUNT =	ziglang
 GH_PROJECT =	zig

lang/zig/patches/patch-lib_std_debug_zig

@@ -1,3 +1,5 @@
+msync: https://github.com/ziglang/zig/pull/18701
+
 Index: lib/std/debug.zig
 --- lib/std/debug.zig.orig
 +++ lib/std/debug.zig
@@ -9,3 +11,13 @@ Index: lib/std/debug.zig
      (builtin.os.tag != .linux or switch (builtin.cpu.arch) {
      .x86,
      .x86_64,
+@@ -606,6 +607,9 @@ pub const StackIterator = struct {
+             if (native_os != .wasi) {
+                 os.msync(aligned_memory, os.MSF.ASYNC) catch |err| {
+                     switch (err) {
++                        os.MSyncError.AccessDenied => {
++                            return true;
++                        },
+                         os.MSyncError.UnmappedMemory => {
+                             return false;
+                         },

lang/zig/patches/patch-lib_std_os_zig

@@ -1,7 +1,23 @@
+msync: https://github.com/ziglang/zig/pull/18701
+
 Index: lib/std/os.zig
 --- lib/std/os.zig.orig
 +++ lib/std/os.zig
-@@ -5303,6 +5303,9 @@ pub fn getFdPath(fd: fd_t, out_buffer: *[MAX_PATH_BYTE
+@@ -4416,11 +4416,13 @@ pub fn munmap(memory: []align(mem.page_size) const u8)
+ 
+ pub const MSyncError = error{
+     UnmappedMemory,
++    AccessDenied,
+ } || UnexpectedError;
+ 
+ pub fn msync(memory: []align(mem.page_size) u8, flags: i32) MSyncError!void {
+     switch (errno(system.msync(memory.ptr, memory.len, flags))) {
+         .SUCCESS => return,
++        .PERM => return error.AccessDenied,
+         .NOMEM => return error.UnmappedMemory, // Unsuccessful, provided pointer does not point mapped memory
+         .INVAL => unreachable, // Invalid parameters.
+         else => unreachable,
+@@ -5303,6 +5305,9 @@ pub fn getFdPath(fd: fd_t, out_buffer: *[MAX_PATH_BYTE
              const len = mem.indexOfScalar(u8, out_buffer[0..], @as(u8, 0)) orelse MAX_PATH_BYTES;
              return out_buffer[0..len];
          },
@@ -11,3 +27,12 @@ Index: lib/std/os.zig
          else => @compileError("querying for canonical path of a handle is unsupported on this host"),
      }
  }
+@@ -7038,7 +7043,7 @@ pub const MadviseError = error{
+ pub fn madvise(ptr: [*]align(mem.page_size) u8, length: usize, advice: u32) MadviseError!void {
+     switch (errno(system.madvise(ptr, length, advice))) {
+         .SUCCESS => return,
+-        .ACCES => return error.AccessDenied,
++        .PERM, .ACCES => return error.AccessDenied,
+         .AGAIN => return error.SystemResources,
+         .BADF => unreachable, // The map exists, but the area maps something that isn't a file.
+         .INVAL => return error.InvalidSyscall,