Ports: Add doxygen v1.9.7

Author: https://github.com/tbhaxor
Commit: https://github.com/SerenityOS/serenity/commit/4519ac2da9
Pull-request: https://github.com/SerenityOS/serenity/pull/20693
Reviewed-by: https://github.com/timschumi ✅

Ports/AvailablePorts.md

@@ -57,6 +57,7 @@ This list is also available at [ports.serenityos.net](https://ports.serenityos.n
 | [`dosbox-staging`](dosbox-staging/)                 | DOSBox Staging                                                  | 0.77.1                    | https://dosbox-staging.github.io/                                              |
 | [`dosfstools`](dosfstools/)                         | dosfstools utility suite                                        | 4.2                       | https://github.com/dosfstools/dosfstools/                                      |
 | [`double-conversion`](double-conversion/)           | double-conversion                                               | 3.2.1                     | https://github.com/google/double-conversion                                    |
+| [`doxygen`](doxygen/)                               | Doxygen                                                         | 1.9.7                     | https://github.com/doxygen/doxygen                                             |
 | [`drascula`](drascula/)                             | Dráscula: The Vampire Strikes Back                              | 1.0                       | https://www.scummvm.org/games/#games-drascula                                  |
 | [`dreamweb`](dreamweb/)                             | DreamWeb                                                        | 1.1                       | https://www.scummvm.org/games/#games-dreamweb                                  |
 | [`dropbear`](dropbear/)                             | Dropbear SSH                                                    | 2022.82                   | https://dropbear.nl/mirror/dropbear.html                                       |

Ports/doxygen/package.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port='doxygen'
+version='1.9.7'
+files=(
+    "https://github.com/doxygen/doxygen/archive/refs/tags/Release_${version//./_}.tar.gz 691777992a7240ed1f822a5c2ff2c4273b57c1cf9fc143553d87f91a0c5970ee"
+)
+workdir="${port}-Release_${version//./_}"
+useconfigure='true'
+configopts=(
+    '-Bbuild'
+    '-GNinja'
+    "-DCMAKE_TOOLCHAIN_FILE=${SERENITY_BUILD_DIR}/CMakeToolchain.txt"
+    '-DCMAKE_BUILD_TYPE=Release'
+    '-DCMAKE_POLICY_DEFAULT_CMP0148=OLD'
+)
+depends=(
+    'libiconv'
+)
+
+configure() {
+    run cmake "${configopts[@]}"
+}
+
+build() {
+    run cmake --build build -j "$MAKEJOBS"
+}
+
+install() {
+    run cmake --install build --prefix "$SERENITY_INSTALL_ROOT"
+}

Ports/doxygen/patches/0001-Pretend-that-SerenityOS-is-Linux-like.patch

@@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Gurkirat Singh <tbhaxor@gmail.com>
+Date: Mon, 21 Aug 2023 05:47:52 +0530
+Subject: [PATCH] Pretend that SerenityOS is Linux-like
+
+---
+ deps/filesystem/filesystem.hpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/deps/filesystem/filesystem.hpp b/deps/filesystem/filesystem.hpp
+index 53f4ad4efc0947583ae53b9b2a64a9f50557537b..60c0f194b669e62d079ec32d4c4bb8fa7d0ecbb4 100644
+--- a/deps/filesystem/filesystem.hpp
++++ b/deps/filesystem/filesystem.hpp
+@@ -54,7 +54,7 @@
+ #ifndef GHC_OS_DETECTED
+ #if defined(__APPLE__) && defined(__MACH__)
+ #define GHC_OS_MACOS
+-#elif defined(__linux__)
++#elif defined(__linux__) || defined(__serenity__)
+ #define GHC_OS_LINUX
+ #if defined(__ANDROID__)
+ #define GHC_OS_ANDROID

Ports/doxygen/patches/ReadMe.md

@@ -0,0 +1,7 @@
+# Patches for doxygen on SerenityOS
+
+## `0001-Pretend-that-SerenityOS-is-Linux-like.patch`
+
+Pretend that SerenityOS is Linux-like
+
+