macos-powerpc · danifunker · Aug 8, 2026
diff --git a/lang/mrustc/Portfile b/lang/mrustc/Portfile
@@ -19,7 +19,7 @@ set rust_version_major_underscore [join [lrange [split ${rust_version} .-] 0 1]
 
 # Subport mrustc-rust has its own versioning
 version             ${rust_version_major}-20260802
-revision            0
+revision            1
 epoch               1
 
 categories          lang devel
@@ -164,6 +164,7 @@ pre-patch {
     system -W ${workpath}/${name}-${github.version} "patch -p1 < [shellescape ${filespath}/0023-hir_typeck-find-trait-object-methods-through-custom-.patch]"
     system -W ${workpath}/${name}-${github.version} "patch -p1 < [shellescape ${filespath}/0024-hir_typeck-bind-path-ivars-against-non-generic-impls.patch]"
     system -W ${workpath}/${name}-${github.version} "patch -p1 < [shellescape ${filespath}/0025-toml-decode-u-U-escapes-to-real-UTF-8.patch]"
+    system -W ${workpath}/${name}-${github.version} "patch -p1 < [shellescape ${filespath}/0026-minicargo-Preserve-the-semver-pre-release-suffix-in-.patch]"
     # Patch the Rust source code with the patch included with mrustc:
     system -W ${workpath}/rustc-${rust_version}-src "patch -p0 < [shellescape ${worksrcpath}/rustc-${rust_version}-src.patch]"
 

diff --git a/lang/mrustc/files/0026-minicargo-Preserve-the-semver-pre-release-suffix-in-.patch b/lang/mrustc/files/0026-minicargo-Preserve-the-semver-pre-release-suffix-in-.patch
@@ -0,0 +1,94 @@
+From 0ef4515caa7185727a069de5996cd07c7a5c3c74 Mon Sep 17 00:00:00 2001
+From: Dani Sarfati <dani@funkervogt.com>
+Date: Fri, 7 Aug 2026 18:59:59 -0400
+Subject: [PATCH] minicargo: Preserve the semver pre-release suffix in
+ CARGO_PKG_VERSION
+
+`PackageVersion::from_string` parsed the `+build` suffix but not `-prerelease`,
+so `3.0.0-alpha.2` silently became plain `3.0.0`. Build scripts that derive an
+identifier from CARGO_PKG_VERSION then generate the wrong name: protobuf's
+build.rs emits `VERSION_3_0_0` while its codegen'd .rs files reference
+`VERSION_3_0_0_ALPHA_2`, which fails to resolve.
+
+The new `prerelease` field is deliberately not part of `cmp`/`operator==` --
+pre-release ordering rules are subtle and changing resolution behaviour is a
+separate concern. It is exposed only through `to_string_full()`, used for
+CARGO_PKG_VERSION; `operator<<` is unchanged so crate tags and output filenames
+do not churn.
+---
+ tools/minicargo/build.cpp    |  3 ++-
+ tools/minicargo/manifest.cpp | 10 +++++++++-
+ tools/minicargo/manifest.h   | 15 ++++++++++++++-
+ 3 files changed, 25 insertions(+), 3 deletions(-)
+
+diff --git a/tools/minicargo/build.cpp b/tools/minicargo/build.cpp
+index 3b1dd2a9..f6141bfd 100644
+--- a/tools/minicargo/build.cpp
++++ b/tools/minicargo/build.cpp
+@@ -743,7 +743,8 @@ namespace {
+     {
+         env.push_back("CARGO_MANIFEST_DIR", manifest.directory().to_absolute());
+         env.push_back("CARGO_PKG_NAME", manifest.name());
+-        env.push_back("CARGO_PKG_VERSION", ::format(manifest.version()));
++        // Full form: build scripts derive identifiers from this
++        env.push_back("CARGO_PKG_VERSION", manifest.version().to_string_full());
+         env.push_back("CARGO_PKG_VERSION_MAJOR", ::format(manifest.version().major));
+         env.push_back("CARGO_PKG_VERSION_MINOR", ::format(manifest.version().minor));
+         env.push_back("CARGO_PKG_VERSION_PATCH", ::format(manifest.version().patch));
+diff --git a/tools/minicargo/manifest.cpp b/tools/minicargo/manifest.cpp
+index b3b80644..8696ac56 100644
+--- a/tools/minicargo/manifest.cpp
++++ b/tools/minicargo/manifest.cpp
+@@ -1560,7 +1560,15 @@ PackageVersion PackageVersion::from_string(const ::std::string& s)
+         rv.patch = 0;
+         rv.patch_set = false;
+     }
+-    if(iss.peek() == '+') {
++    // Semver is `-prerelease` then `+build`
++    if(iss.peek() == '-') {
++        iss.get();
++        ::std::getline(iss, rv.prerelease, '+');
++        if(!iss.eof()) {   // getline ate the '+'
++            iss >> rv.free_text;
++        }
++    }
++    else if(iss.peek() == '+') {
+         iss.get();
+         iss >> rv.free_text;
+     }
+diff --git a/tools/minicargo/manifest.h b/tools/minicargo/manifest.h
+index 545ae38a..e7583a2e 100644
+--- a/tools/minicargo/manifest.h
++++ b/tools/minicargo/manifest.h
+@@ -36,7 +36,8 @@ struct PackageVersion
+     unsigned minor;
+     unsigned patch;
+     bool patch_set;
+-    std::string free_text;
++    std::string free_text;  // Semver `+build`
++    std::string prerelease; // Semver `-prerelease`; not part of ordering
+
+     explicit PackageVersion()
+         : major(0), minor(0), patch(0), patch_set(false) {}
+@@ -114,6 +115,18 @@ struct PackageVersion
+         }
+         return os;
+     }
++
++    /// Full version string, for CARGO_PKG_VERSION (`operator<<` feeds crate tags)
++    std::string to_string_full() const {
++        std::string rv = std::to_string(major) + "." + std::to_string(minor);
++        if(patch_set)
++            rv += "." + std::to_string(patch);
++        if(!prerelease.empty())
++            rv += "-" + prerelease;
++        if(!free_text.empty())
++            rv += "+" + free_text;
++        return rv;
++    }
+ };
+ struct PackageVersionSpec
+ {
+-- 
+2.43.0
+
diff --git a/net/rustdesk-ppc-agent/Portfile b/net/rustdesk-ppc-agent/Portfile
@@ -0,0 +1,143 @@
+# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
+
+PortSystem          1.0
+PortGroup           github  1.0
+PortGroup           cargo   1.0
+
+# The agent is a subdirectory of a RustDesk fork rather than a repository of its
+# own, so three things are set by hand:
+#   - the tag is prefixed `ppc-agent-`, to keep it clear of upstream RustDesk's
+#     own 1.x tags on the same fork;
+#   - `name` is set, because github.setup would otherwise call this port
+#     `rustdesk`, which it is not;
+#   - `worksrcdir` descends into the subdirectory. GitHub names an archive
+#     directory `<repo>-<tag>`, so tag `ppc-agent-0.1.0` of repo `rustdesk`
+#     unpacks to `rustdesk-ppc-agent-0.1.0/`.
+github.setup        danifunker rustdesk 0.1.0 ppc-agent-
+name                rustdesk-ppc-agent
+distname            rustdesk-ppc-agent-0.1.0
+worksrcdir          ${distname}/rustdesk-ppc-agent
+revision            0
+categories          net
+license             GPL-3
+maintainers         {@danifunker gmail.com:danifunkervogt} \
+                    openmaintainer
+
+# 32-bit only: the capture path is CGDisplayBaseAddress and the input path is
+# CGPostMouseEvent, and the whole thing is built and tested as ppc.
+supported_archs     ppc
+installs_libs       no
+
+description         RustDesk agent (controlled side) for PowerPC Mac OS X
+
+long_description    A minimal RustDesk agent for PowerPC Macs: it serves screen, \
+                    keyboard, mouse and clipboard to a standard RustDesk client, \
+                    over a direct connection or a rendezvous server. This is the \
+                    controlled side only -- there is no GUI client. The protocol \
+                    is reimplemented against RustDesk's own .proto files rather \
+                    than ported from upstream's tokio-based tree, which is what \
+                    keeps the dependency graph at ~30 crates and inside the \
+                    subset of Rust mrustc handles.
+
+github.tarball_from archive
+
+checksums           ${distname}${extract.suffix} \
+                    rmd160  4b56a05c1e2d67c134cffec6ed19d989f388e848 \
+                    sha256  9dbc60b8acfa92dbffcc7b87ee87dea69593042f8a686665ec9a0b25b0cbdbcc \
+                    size    758541
+
+# libvpx        VP8 encode (the agent links it statically)
+# libsodium     the RustDesk handshake (via sodiumoxide)
+# zstd, zlib    clipboard decompression from modern peers
+depends_lib-append  port:libvpx \
+                    port:libsodium \
+                    port:zstd \
+                    port:zlib
+
+# AltiVec is not optional for this port: both libvpx's encoder paths and the
+# agent's own C shims use it, so a G3 cannot run the result. See the upstream
+# BACKLOG section 13 for the measurements.
+
+cargo.offline_cmd
+
+# protobuf 3.0.0-alpha.2's BufReadIter::read_exact_to_vec reserves capacity and
+# then indexes past the end of a zero-length slice -- UB on a length taken
+# straight off the wire. It survives a release build but aborts under the debug
+# assertions this toolchain builds libstd with.
+patch.dir           ${workpath}
+patchfiles          protobuf-3.0.0-alpha.2.patch
+
+# SODIUM_LIB_DIR   libsodium-sys looks here rather than running pkg-config
+# PPC_LIBS_DIR     build.rs turns this into -L for the statically linked libs
+build.env-append    SODIUM_LIB_DIR=${prefix}/lib \
+                    PPC_LIBS_DIR=${prefix}/lib
+
+cargo.crates \
+    block-buffer               0.10.4  3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71 \
+    cc                          1.4.0  5add81bb678e6cb321aff7fa0dc7689ad82b112dbc032cea19f91d6b8e3582b9 \
+    cfg-if                      1.0.4  9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801 \
+    cpufeatures                0.2.17  59ed5838eebb26a2bb2e58f6d5b5316989ae9d08bab10e0e6d103e656d1b0280 \
+    crypto-common               0.1.7  78c8292055d1c1df0cce5d180393dc8cce0abec0a7102adb6c7b1eef6016d60a \
+    digest                     0.10.7  9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292 \
+    ed25519                     1.5.3  91cff35c70bba8a626e3185d8cd48cc11b5437e1a5bcd15b9b5fa3c64b6dfee7 \
+    find-msvc-tools             0.1.9  5baebc0774151f905a1a2cc41989300b1e6fbb29aff0ceffa1064fdd3088d582 \
+    generic-array              0.14.7  85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a \
+    libc                      0.2.174  1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776 \
+    libsodium-sys               0.2.7  6b779387cd56adfbc02ea4a668e704f729be8d6a6abd2c27ca5ee537849a92fd \
+    log                        0.4.33  0ceec5bc11778974d1bcb055b18002eba7f4b3518b6a0081b3af5f21666da9ad \
+    pkg-config                 0.3.33  19f132c84eca552bf34cab8ec81f1c1dcc229b811638f9d283dceabe58c5569e \
+    proc-macro2               1.0.107  985e7ec9bb745e6ce6535b544d84d6cd6f7ad8bd711c398938ae983b91a766d9 \
+    protobuf            3.0.0-alpha.2  9d5ef59c35c7472ce5e1b6c5924b87585143d1fc2cf39eae0009bba6c4df62f1 \
+    quote                      1.0.47  1fbf4db142a473a8d80c26bbf18454ed458bf8d26c8219c331daecfdbd079001 \
+    same-file                   1.0.6  93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502 \
+    serde                     1.0.229  4148590afebada386688f18773da617792bf2ef03ffc1e4cbd2b1d45b023e0ba \
+    serde_core                1.0.229  67dca2c9c51e58a4791a4b1ed58308b39c64224d349a935ab5039aa360942a48 \
+    serde_derive              1.0.229  e7a5d71263a5a7d47b41f6b3f06ba276f10cc18b0931f1799f710578e2309348 \
+    sha2                       0.10.9  a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283 \
+    shlex                       2.0.1  f8fadd59c855ef2080decdef8ff161eb6661b86933c9d82e5ba29dc602a55aba \
+    signature                   1.6.4  74233d3b3b2f6d4b006dc19dee745e73e2a6bfb6f93607cd3b02bd5b00797d7c \
+    sodiumoxide                 0.2.7  e26be3acb6c2d9a7aac28482586a7856436af4cfe7100031d219de2d2ecb0028 \
+    syn                         3.0.3  53e9bae58849f64dfa4f5d5ae372c8341f7305f82a3868709269343628b659a3 \
+    typenum                    1.20.1  b6f5e870be6c3b371b77fe0ee0bafb859fa4964b4404c27de1d380043c4dda20 \
+    unicode-ident              1.0.24  e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75 \
+    version_check               0.9.5  0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a \
+    walkdir                     2.5.0  29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b \
+    winapi-util                0.1.11  c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22 \
+    windows-link                0.2.1  f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5 \
+    windows-sys                0.61.2  ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc
+
+destroot {
+    xinstall -m 0755 \
+        ${worksrcpath}/target/[cargo.rust_platform]/release/rustdesk-agent \
+        ${destroot}${prefix}/bin/
+
+    # A launchd *agent* template, not a startupitem. The agent has to run inside
+    # the logged-in user's Aqua session: PasteboardCreate returns -4960 from an
+    # ssh login or a detached screen, so a LaunchDaemon serves a session with no
+    # working clipboard. Installed as a template because it is per-user and the
+    # binary path has to be substituted in.
+    xinstall -d ${destroot}${prefix}/share/${name}
+    xinstall -m 0644 ${worksrcpath}/deploy/com.rustdesk.ppc-agent.plist.in \
+        ${destroot}${prefix}/share/${name}/
+    xinstall -m 0644 ${worksrcpath}/README.md \
+        ${destroot}${prefix}/share/${name}/
+}
+
+notes "
+To run the agent at login, install the LaunchAgent template into your own\
+ account and substitute the paths:
+
+    mkdir -p ~/Library/LaunchAgents
+    sed -e 's|@BIN@|${prefix}/bin/rustdesk-agent|' \\
+        -e 's|@LOG@|'\$HOME'/rustdesk-ppc-agent/agent.log|' \\
+        -e 's|@PORT@|21118|' \\
+        ${prefix}/share/${name}/com.rustdesk.ppc-agent.plist.in \\
+        > ~/Library/LaunchAgents/com.rustdesk.ppc-agent.plist
+    launchctl load ~/Library/LaunchAgents/com.rustdesk.ppc-agent.plist
+
+It must be a LaunchAgent rather than a LaunchDaemon: the clipboard only works\
+ inside the logged-in Aqua session. This starts the agent at *login*, not at\
+ boot, so a Mac meant to be reachable unattended needs automatic login enabled.
+
+This is the controlled side only. Connect to it with a standard RustDesk client.
+"
diff --git a/net/rustdesk-ppc-agent/files/protobuf-3.0.0-alpha.2.patch b/net/rustdesk-ppc-agent/files/protobuf-3.0.0-alpha.2.patch
@@ -0,0 +1,37 @@
+protobuf 3.0.0-alpha.2: fix out-of-bounds indexing in the wire-parse path
+
+`BufReadIter::read_exact_to_vec` calls `reserve_exact(count)` and then
+`get_unchecked_mut(..count)`. `reserve_exact` grows *capacity*, not length, so
+at that point `target.len()` is 0 and the range is past the end of the slice.
+It happens to work in a release build because the allocation is real, but it is
+undefined behaviour, and `count` comes straight off the wire.
+
+libstd as built by the mrustc port has debug assertions enabled, so std's
+precondition check fires and aborts:
+
+    unsafe precondition(s) violated: slice::get_unchecked_mut requires that the
+    range is within the slice
+
+Replaced with a safe `resize`, which costs one memset of a buffer that is about
+to be overwritten anyway.
+
+--- .home/.cargo/macports/protobuf-3.0.0-alpha.2/src/buf_read_iter.rs
++++ .home/.cargo/macports/protobuf-3.0.0-alpha.2/src/buf_read_iter.rs
+@@ -352,12 +352,11 @@
+                 }
+             }
+         } else {
+-            target.reserve_exact(count);
+-
+-            unsafe {
+-                self.read_exact(&mut target.get_unchecked_mut(..count))?;
+-                target.set_len(count);
+-            }
++            // `reserve_exact` grows capacity, not length, so the original
++            // `get_unchecked_mut(..count)` here indexed past the end of a
++            // zero-length slice - UB on a wire-controlled length.
++            target.resize(count, 0);
++            self.read_exact(&mut target[..count])?;
+         }
+
+         debug_assert_eq!(count, target.len());