chore: create MACOSX_BUNDLE

this results in a GUI instead of a CMD application on macOS

.github/workflows/macos-x86-64-build.yml

@@ -19,12 +19,12 @@ jobs:
         run: ./scripts/bundle-libs-macos.sh
 
       - name: Copy OS specific files
-        run: cp -r ./dist-os-specific/macos/* ./dist
+        run: cp -rf ./dist-os-specific/macos/* ./dist
 
       - name: Test executable
         run: |
           brew uninstall --force --ignore-dependencies argtable sdl2 dumb libogg flac libpng freetype libvorbis ca-certificates openssl@3 opus opusfile physfs theora giflib jpeg-turbo xz lz4 zstd libtiff webp pcre2 gettext glib lame mpg123 libsndfile portaudio readline allegro fluid-synth mad enet
-          cd dist
+          cd dist/dunedynasty.app/Contents/MacOS
           ./dunedynasty | grep "data directory"
 
       - name: Zip dist folder

CMakeLists.txt

@@ -140,7 +140,7 @@ configure_file("${CMAKE_SOURCE_DIR}/include/buildcfg.h.in" "${PROJECT_BINARY_DIR
 include(cmake/FileList.cmake)
 include_directories("include" "${PROJECT_BINARY_DIR}/include")
 
-add_executable(dunedynasty WIN32
+add_executable(dunedynasty WIN32 MACOSX_BUNDLE
 	${DUNEDYNASTY_SRC_FILES} ${CMAKE_SOURCE_DIR}/src/icon/icon.rc)
 
 target_link_libraries(dunedynasty

dist-os-specific/macos/dunedynasty.app/Contents/Info.plist

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>dunedynasty</string>
+	<key>CFBundleGetInfoString</key>
+	<string></string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string></string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleLongVersionString</key>
+	<string></string>
+	<key>CFBundleName</key>
+	<string></string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string></string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string></string>
+	<key>CSResourcesFileMapped</key>
+	<true/>
+	<key>NSHumanReadableCopyright</key>
+	<string></string>
+    <key>LSMinimumSystemVersion</key>
+    <string>10</string>
+</dict>
+</plist>

scripts/bundle-libs-macos.sh

@@ -1,2 +1,2 @@
 #!/bin/bash -e
-dylibbundler -od -cd -x ./dist/dunedynasty -b -d ./dist/libs -p @executable_path/libs/
+dylibbundler -od -cd -x ./dist/dunedynasty.app/Contents/MacOS/dunedynasty -b -d ./dist/dunedynasty.app/Contents/MacOS/libs -p @executable_path/libs/