Ports: Add port for mruby

Ports/AvailablePorts.md

@@ -97,6 +97,7 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`milkytracker`](milkytracker/)        | milkytracker                                                    | 1.03.00                  | https://github.com/milkytracker/MilkyTracker                                   |
 | [`mpc`](mpc/)                          | GNU Multiple Precision Complex Library (MPC)                    | 1.2.1                    | http://www.multiprecision.org/mpc/                                             |
 | [`mpfr`](mpfr/)                        | GNU Multiple Precision Floating-Point Reliable Library (MPFR)   | 4.1.0                    | https://www.mpfr.org/                                                          |
+| [`mruby`](mruby/)                      | mruby                                                           | 3.0.0                    | https://mruby.org/                                                             |
 | [`mrsh`](mrsh/)                        | mrsh                                                            | d9763a3                  | https://mrsh.sh/                                                               |
 | [`mysthous`](mysthous/)                | Hi-Res Adventure #1: Mystery House                              | 1.0                      | https://www.scummvm.org/games/#games-hires1                                    |
 | [`nano`](nano/)                        | GNU nano                                                        | 5.8                      | https://www.nano-editor.org/                                                   |

Ports/mruby/package.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port=mruby
+version=3.0.0
+files="https://github.com/mruby/mruby/archive/refs/tags/${version}.tar.gz mruby-${version}.tar.gz 95b798cdd931ef29d388e2b0b267cba4dc469e8722c37d4ef8ee5248bc9075b0"
+auth_type="sha256"
+
+build_config="serenity"
+build_dir="build/${build_config}"
+
+build() {
+    unset CC
+    unset AR
+    unset LD
+    unset CXX
+    export MRUBY_CONFIG="$build_config"
+    run rake
+}
+
+install() {
+    run cp "${build_dir}/bin/mirb" "${SERENITY_INSTALL_ROOT}/bin/"
+    run cp "${build_dir}/bin/mrbc" "${SERENITY_INSTALL_ROOT}/bin/"
+    run cp "${build_dir}/bin/mruby" "${SERENITY_INSTALL_ROOT}/bin/"
+    run cp "${build_dir}/lib/libmruby.a" "${SERENITY_INSTALL_ROOT}/usr/lib/"
+    run cp "${build_dir}/lib/libmruby_core.a" "${SERENITY_INSTALL_ROOT}/usr/lib/"
+}

Ports/mruby/patches/include-sys-select-h.patch

@@ -0,0 +1,10 @@
+--- mruby-3.0.0/mrbgems/mruby-io/src/io.c	2021-08-20 00:27:04.837317416 -0400
++++ mruby-3.0.0.serenity/mrbgems/mruby-io/src/io.c	2021-08-20 00:28:51.960390750 -0400
+@@ -49,6 +49,7 @@
+   #include <sys/wait.h>
+   #include <sys/time.h>
+   #include <unistd.h>
++  #include <sys/select.h>
+   typedef size_t fsize_t;
+   typedef time_t ftime_t;
+   typedef suseconds_t fsuseconds_t;

Ports/mruby/patches/serenity-build-conf.patch

@@ -0,0 +1,19 @@
+--- /dev/null	2021-08-20 13:32:02.136545596 -0400
++++ mruby-3.0.0/build_config/serenity.rb	2021-08-20 14:18:09.673875364 -0400
+@@ -0,0 +1,16 @@
++MRuby::CrossBuild.new('serenity') do |conf|
++  conf.toolchain :gcc
++
++  conf.archiver.command = "#{ENV['SERENITY_ARCH']}-pc-serenity-ar"
++  conf.linker.command = "#{ENV['SERENITY_ARCH']}-pc-serenity-g++"
++
++  conf.cxx.command = "#{ENV['SERENITY_ARCH']}-pc-serenity-g++"
++  conf.cxx.defines << (ENV['SERENITY_ARCH'].include?('64') ? 'MRB_64BIT' : 'MRB_32BIT')
++
++  conf.cc.command = "#{ENV['SERENITY_ARCH']}-pc-serenity-gcc"
++  conf.cc.defines << (ENV['SERENITY_ARCH'].include?('64') ? 'MRB_64BIT' : 'MRB_32BIT')
++
++  conf.gembox 'full-core'
++
++  conf.test_runner.command = 'env'
++end