build: add CMake and MinGW cross-compilation toolchain
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cmake_minimum_required(VERSION 3.22)
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project(SerumAlt VERSION 1.0.0 LANGUAGES CXX)
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# ---------------------------------------------------------------------------
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# C++ standard
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# ---------------------------------------------------------------------------
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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# ---------------------------------------------------------------------------
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# JUCE
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# ---------------------------------------------------------------------------
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if(NOT DEFINED JUCE_ROOT)
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set(JUCE_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/third_party/JUCE")
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endif()
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add_subdirectory("${JUCE_ROOT}")
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# ---------------------------------------------------------------------------
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# Plugin target
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# ---------------------------------------------------------------------------
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# JUCE 7.0.12 builds its VST3 manifest helper (juce_vst3_helper) with the same
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# toolchain as the plugin itself. When cross-compiling, that produces a Windows
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# .exe which cannot run on the Linux build host, so we disable the automatic
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# manifest step and inject a platform-independent moduleinfo.json afterwards
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# (see build_windows.sh). Native builds keep the automatic step.
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set(SERUMALT_VST3_AUTO_MANIFEST TRUE)
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if(CMAKE_CROSSCOMPILING)
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set(SERUMALT_VST3_AUTO_MANIFEST FALSE)
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endif()
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juce_add_plugin(SerumAlt
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VERSION 1.0.0
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COMPANY_NAME "SerumAlt Audio"
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IS_SYNTH TRUE
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NEEDS_MIDI_INPUT TRUE
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NEEDS_MIDI_OUTPUT FALSE
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IS_MIDI_EFFECT FALSE
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EDITOR_WANTS_KEYBOARD_FOCUS FALSE
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PLUGIN_MANUFACTURER_CODE Salt
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PLUGIN_CODE Sera
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BUNDLE_ID com.serumalt.SerumAlt
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FORMATS VST3 AU Standalone
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PRODUCT_NAME "SerumAlt"
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VST3_AUTO_MANIFEST ${SERUMALT_VST3_AUTO_MANIFEST})
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juce_generate_juce_header(SerumAlt)
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set(SERUMALT_SOURCES
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Source/PluginProcessor.cpp
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Source/PluginEditor.cpp
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Source/Params.cpp
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Source/Wavetable.cpp
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Source/Oscillator.cpp
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Source/SubOscillator.cpp
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Source/NoiseOscillator.cpp
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Source/Filter.cpp
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Source/FilterBank.cpp
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Source/Envelope.cpp
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Source/LFO.cpp
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Source/ModulationMatrix.cpp
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Source/FXProcessor.cpp
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Source/MacroControls.cpp
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Source/RAVEButton.cpp
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Source/SynthVoice.cpp
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Source/Engine.cpp
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Source/Resources.cpp
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Source/EffectUnits/Hyper.cpp
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Source/EffectUnits/Chorus.cpp
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Source/EffectUnits/Flanger.cpp
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Source/EffectUnits/Phaser.cpp
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Source/EffectUnits/Distortion.cpp
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Source/EffectUnits/EQ.cpp
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Source/EffectUnits/Compressor.cpp
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Source/EffectUnits/Delay.cpp
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Source/EffectUnits/Reverb.cpp
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Source/GUI/Knob.cpp
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Source/GUI/Slider.cpp
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Source/GUI/ToggleButton.cpp
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Source/GUI/Display.cpp
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Source/GUI/WaveformDisplay.cpp
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Source/GUI/FilterDisplay.cpp
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Source/GUI/EnvelopeDisplay.cpp
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Source/GUI/LFODisplay.cpp
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Source/GUI/Panel.cpp
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Source/Presets/FactoryPresets.cpp)
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target_sources(SerumAlt PRIVATE ${SERUMALT_SOURCES})
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target_compile_definitions(SerumAlt
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PUBLIC
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JUCE_WEB_BROWSER=0
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JUCE_USE_CURL=0
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JUCE_VST3_CAN_REPLACE_VST2=0)
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target_link_libraries(SerumAlt
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PRIVATE
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juce::juce_audio_utils
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juce::juce_dsp
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PUBLIC
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juce::juce_recommended_config_flags
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juce::juce_recommended_warning_flags)
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# ---------------------------------------------------------------------------
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# Headless QA harness (console app that drives the processor and checks output)
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# ---------------------------------------------------------------------------
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option(SERUMALT_BUILD_TESTS "Build the headless QA harness" ON)
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if(SERUMALT_BUILD_TESTS)
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juce_add_console_app(SerumAltTest)
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juce_generate_juce_header(SerumAltTest)
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target_sources(SerumAltTest PRIVATE ${SERUMALT_SOURCES} Source/Tests/TestMain.cpp)
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target_compile_definitions(SerumAltTest
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PUBLIC
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JUCE_WEB_BROWSER=0
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JUCE_USE_CURL=0)
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target_link_libraries(SerumAltTest
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PRIVATE
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juce::juce_audio_utils
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juce::juce_dsp
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PUBLIC
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juce::juce_recommended_config_flags
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juce::juce_recommended_warning_flags)
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endif()
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if(MSVC)
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target_compile_options(SerumAlt PRIVATE /W4)
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else()
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target_compile_options(SerumAlt PRIVATE -Wall -Wextra)
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endif()
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Executable
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#!/usr/bin/env bash
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# ---------------------------------------------------------------------------
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# build_windows.sh — cross-compile SerumAlt VST3 for Windows using MinGW-w64
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# ---------------------------------------------------------------------------
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$SCRIPT_DIR"
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TOOLCHAIN_FILE="mingw64-toolchain.cmake"
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BUILD_DIR="build_windows"
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OUTPUT_DIR="SerumAlt_Windows"
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PLUGIN_NAME="SerumAlt"
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# 1. Check for the MinGW-w64 cross-compiler and exit if it is not found.
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if ! command -v x86_64-w64-mingw32-g++ >/dev/null 2>&1; then
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echo "ERROR: x86_64-w64-mingw32-g++ not found." >&2
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echo "Please install the MinGW-w64 cross-compiler first, e.g.:" >&2
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echo " sudo pacman -S mingw-w64-gcc" >&2
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exit 1
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fi
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echo "Found: $(command -v x86_64-w64-mingw32-g++)"
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# 2. Generate the CMake toolchain file.
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cat > "$TOOLCHAIN_FILE" <<'EOF'
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set(CMAKE_SYSTEM_NAME Windows)
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set(CMAKE_SYSTEM_PROCESSOR x86_64)
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set(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
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set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
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set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
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set(CMAKE_AR x86_64-w64-mingw32-ar)
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set(CMAKE_RANLIB x86_64-w64-mingw32-ranlib)
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set(CMAKE_STRIP x86_64-w64-mingw32-strip)
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set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
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EOF
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echo "Wrote toolchain file: $TOOLCHAIN_FILE"
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# 3. Configure with CMake + Ninja (VST3-only cross build, no test harness).
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cmake -S . -B "$BUILD_DIR" -G Ninja \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_TOOLCHAIN_FILE="$TOOLCHAIN_FILE" \
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-DSERUMALT_BUILD_TESTS=OFF
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# 4. Build the VST3 target.
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cmake --build "$BUILD_DIR" --target SerumAlt_VST3
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# 5. Inject the VST3 moduleinfo.json.
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# The automatic manifest step is disabled when cross-compiling (see
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# CMakeLists.txt), because JUCE's manifest helper is a host tool that would
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# otherwise be built as a Windows executable. The moduleinfo content is
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# deterministic and platform-independent: it depends only on the plugin's
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# name, manufacturer/plugin codes, and version, so we write the identical
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# file that the native helper generates. Keep it in sync with the metadata
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# in CMakeLists.txt (PLUGIN_CODE, PLUGIN_MANUFACTURER_CODE, VERSION).
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VST3_BUNDLE="$BUILD_DIR/${PLUGIN_NAME}_artefacts/Release/VST3/$PLUGIN_NAME.vst3"
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mkdir -p "$VST3_BUNDLE/Contents/Resources"
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cat > "$VST3_BUNDLE/Contents/Resources/moduleinfo.json" <<'EOF'
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{
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"Name": "SerumAlt",
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"Version": "1.0.0",
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"Factory Info": {
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"Vendor": "SerumAlt Audio",
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"URL": "",
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"E-Mail": "",
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"Flags": {
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"Unicode": true,
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"Classes Discardable": false,
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"Component Non Discardable": false,
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},
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},
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"Classes": [
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{
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"CID": "ABCDEF019182FAEB53616C7453657261",
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"Category": "Audio Module Class",
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"Name": "SerumAlt",
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"Vendor": "SerumAlt Audio",
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"Version": "1.0.0",
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"SDKVersion": "VST 3.7.8",
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"Sub Categories": [
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"Instrument",
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"Synth",
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],
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"Class Flags": 2,
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"Cardinality": 2147483647,
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"Snapshots": [
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],
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},
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{
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"CID": "ABCDEF011234ABCD53616C7453657261",
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"Category": "Component Controller Class",
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"Name": "SerumAlt",
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"Vendor": "SerumAlt Audio",
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"Version": "1.0.0",
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"SDKVersion": "VST 3.7.8",
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"Sub Categories": [
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"Instrument",
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"Synth",
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],
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"Class Flags": 2,
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"Cardinality": 2147483647,
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"Snapshots": [
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],
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},
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{
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"CID": "ABCDEF01C0DEF00D53616C7453657261",
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"Category": "Plugin Compatibility Class",
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"Name": "SerumAlt",
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"Vendor": "SerumAlt Audio",
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"Version": "1.0.0",
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"SDKVersion": "VST 3.7.8",
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"Class Flags": 0,
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"Cardinality": 2147483647,
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"Snapshots": [
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],
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},
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],
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}
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EOF
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# 6. Copy the resulting .vst3 bundle to SerumAlt_Windows/.
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mkdir -p "$OUTPUT_DIR"
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rm -rf "$OUTPUT_DIR/$PLUGIN_NAME.vst3"
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cp -R "$BUILD_DIR/${PLUGIN_NAME}_artefacts/Release/VST3/$PLUGIN_NAME.vst3" "$OUTPUT_DIR/"
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echo
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echo "Done. Windows VST3 plugin at: $SCRIPT_DIR/$OUTPUT_DIR/$PLUGIN_NAME.vst3"
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set(CMAKE_SYSTEM_NAME Windows)
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set(CMAKE_SYSTEM_PROCESSOR x86_64)
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set(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
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set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
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set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
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set(CMAKE_AR x86_64-w64-mingw32-ar)
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set(CMAKE_RANLIB x86_64-w64-mingw32-ranlib)
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set(CMAKE_STRIP x86_64-w64-mingw32-strip)
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set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
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