diff --git a/projects/gnu.org/gcc/v8/package.yml b/projects/gnu.org/gcc/v8/package.yml
new file mode 100644
index 0000000000..6854d51a15
--- /dev/null
+++ b/projects/gnu.org/gcc/v8/package.yml
@@ -0,0 +1,99 @@
+# GCC 8 — legacy version for old-vendored-C++ projects.
+#
+# Many projects vendoring older C++ libraries (RocksDB 6.3.x, old
+# MySQL 5.7, old InnoDB, pre-C++17 codebases generally) hit the
+# stricter copy-ctor / atomic / pair-construction rules introduced
+# in gcc 12+ libstdc++. They compile cleanly with gcc 8 which was
+# the last major to default to C++14 / gnu++14 ABI.
+#
+# Companion to gnu.org/gcc (latest) for cubefs.io, mysql.com/v5_7,
+# and other from-source recipes that can't easily be patched to
+# modern C++.
+
+distributable:
+  url: https://ftp.gnu.org/gnu/gcc/gcc-{{ version.raw }}/gcc-{{ version.raw }}.tar.xz
+  strip-components: 1
+
+versions:
+  github: gcc-mirror/gcc/tags
+  strip: /^releases\/gcc-/
+  # Pin to the 8.x line — drop everything else.
+  ignore:
+    - /^[0-79]\./
+    - /^9\./
+    - /^[1-9][0-9]/
+
+# Linux only. Darwin's old SDK situation makes gcc 8 hard to bring
+# up — users on darwin needing legacy C++ are better off with clang
+# from llvm.org which has its own legacy mode.
+platforms:
+  - linux/x86-64
+  - linux/aarch64
+
+dependencies:
+  gnu.org/binutils: '*'
+  gnu.org/gmp: ~6
+  gnu.org/mpfr: ~4
+  gnu.org/mpc: ~1
+  zlib.net: ^1.3
+
+build:
+  dependencies:
+    linux:
+      gnu.org/gcc: '*'   # bootstrap with current gcc
+    gnu.org/make: '*'
+    perl.org: '*'
+    gnu.org/patch: '*'
+    curl.se: '*'
+    github.com/westes/flex: '*'
+
+  working-directory: build
+  script:
+    - ARGS=($ARGS --with-pkgversion="pkgx GCC {{version}}")
+    - ../configure "${ARGS[@]}"
+    - make --jobs {{ hw.concurrency }}
+    - make install
+
+    # gcc symlinks expected by some build systems. This recipe lives
+    # one level deeper than the main gnu.org/gcc (v8 subdir), so the
+    # relative path to binutils needs `../../../../` (4 levels).
+    - run: |
+        cd "{{prefix}}/bin"
+        ln -sf gcc cc
+        ln -sf ../../../../binutils/v\*/bin/ar ar
+        ln -sf ../../../../binutils/v\*/bin/nm nm
+        ln -sf ../../../../binutils/v\*/bin/ranlib ranlib
+
+  env:
+    ARGS:
+      - --prefix={{ prefix }}
+      - --libdir={{ prefix }}/lib
+      - --enable-languages=c,c++,fortran
+      - --disable-bootstrap
+      - --disable-nls
+      - --disable-multilib
+      - --with-system-zlib
+      - --with-bugurl=https://github.com/pkgxdev/pantry/issues
+    linux/x86-64:
+      LDFLAGS: -fPIC
+      CFLAGS: -fPIC
+      CXXFLAGS: -fPIC
+
+test:
+  - gcc --version | grep -q "pkgx GCC {{version}}"
+  - gcc -dumpversion | grep -q "^8\."
+
+provides:
+  - bin/ar
+  - bin/cc
+  - bin/c++
+  - bin/cpp
+  - bin/g++
+  - bin/gcc
+  - bin/gcc-ar
+  - bin/gcc-nm
+  - bin/gcc-ranlib
+  - bin/gcov
+  - bin/gfortran
+  - bin/nm
+  - bin/ranlib
diff --git a/projects/mysql.com/v5_7/package.yml b/projects/mysql.com/v5_7/package.yml
new file mode 100644
index 0000000000..cb876e6f14
--- /dev/null
+++ b/projects/mysql.com/v5_7/package.yml
@@ -0,0 +1,103 @@
+# MySQL 5.7 — legacy line.
+#
+# 5.7 reached EOL in October 2023 — homebrew dropped its `mysql@5.7`
+# formula in 2024. Some legacy applications (Rails 5.x apps,
+# WordPress legacy sites, custom replication setups) still pin to
+# 5.7 because the 8.0 migration broke their schema or auth modes.
+#
+# Build is best-effort — 5.7 needs older C++ idioms, boost 1.59,
+# OpenSSL 1.0.x patterns. Expect to iterate.
+#
+# Closes part of pkgxdev/pantry#99 (Top 300 holdout #735).
+
+distributable:
+  url: https://cdn.mysql.com/Downloads/MySQL-{{version.marketing}}/mysql-boost-{{version}}.tar.gz
+  strip-components: 1
+
+# Pin to the 5.7.x stream. mysql-server tags use "mysql-5.7.X" format.
+versions:
+  github: mysql/mysql-server/tags
+  # `github:` mode silently ignores `match:`. Negative lookahead in
+  # `ignore:` also doesn't work (RE2-like regex, no lookahead).
+  # Use `transform:` instead — return the stripped 5.7.X version for
+  # matching tags, undefined for everything else.
+  transform: |
+    v => {
+      const m = v.match(/^mysql-(5\.7\.\d+)$/);
+      return m ? m[1] : undefined;
+    }
+
+platforms:
+  - linux/x86-64
+  - linux/aarch64
+  - darwin/x86-64
+  - darwin/aarch64
+
+dependencies:
+  unicode.org: '*'
+  libevent.org: ^2
+  openssl.org: ^1.1
+  zlib.net: ^1
+  curl.se: '*'
+  thrysoee.dk/editline: '*'
+  linux:
+    # Runtime libstdc++. gcc 8 produced older GLIBCXX_3.4.25-ish
+    # symver references which libstdcxx ^14 (forward-compatible) can
+    # resolve. Same lockstep rationale as the main mysql recipe
+    # (PR #13104) — pantry doesn't auto-propagate stdenv.cc.cc.lib
+    # the way nixpkgs does, so the runtime libstdc++ must be
+    # explicit.
+    gnu.org/gcc/libstdcxx: ^14
+
+build:
+  dependencies:
+    cmake.org: ^3
+    gnu.org/bison: '*'
+    linux:
+      # MySQL 5.7's vendored InnoDB uses unnamed scoped enums + other
+      # pre-C++17 idioms that gcc 12+ rejects. Use the dedicated gcc 8
+      # recipe (companion PR #13070). Linux only — homebrew's
+      # mysql@5.7 builds fine on darwin with the system clang (which
+      # is what pantry uses on darwin too), no gcc pin needed.
+      gnu.org/gcc/v8: '*'
+  working-directory: build
+  script:
+    # 5.7's bundled boost has the old `cmake_minimum_required` which
+    # CMake 4.x rejects without the policy floor override.
+    - run: |
+        export CMAKE_POLICY_VERSION_MINIMUM=3.5
+        cmake .. $ARGS
+        make --jobs {{ hw.concurrency }} install
+  env:
+    ARGS:
+      - -DCMAKE_INSTALL_PREFIX={{prefix}}
+      - -DCMAKE_BUILD_TYPE=Release
+      - -DDOWNLOAD_BOOST=0
+      - -DWITH_BOOST=../boost   # bundled
+      - -DWITH_SSL=system
+      - -DWITH_ZLIB=system
+      - -DWITH_LIBEVENT=system
+      - -DWITH_EDITLINE=system
+      - -DENABLED_LOCAL_INFILE=1
+      - -DWITHOUT_TOKUDB=1
+      - -DWITHOUT_ROCKSDB=1
+      - -DWITHOUT_MROONGA=1
+      - -DWITHOUT_SPIDER=1
+      # Don't force CXX_STANDARD=17 — the whole point of pinning gcc 8
+      # is that 5.7's vendored sources are pre-C++17. Let the gcc 8
+      # default (gnu++14) apply, matching homebrew's mysql@5.7 build.
+
+provides:
+  - bin/mysql
+  - bin/mysqld
+  - bin/mysqldump
+  - bin/mysqladmin
+  - bin/mysqlimport
+  - bin/mysqlcheck
+  - bin/mysqlshow
+  - bin/mysqlbinlog
+  - bin/mysql_secure_installation
+  - bin/mysql_config
+
+test:
+  - mysql --version | grep "5\\.7\\."