Add build script for iOS

Author: withSang

CMakeLists.txt

@@ -110,11 +110,11 @@ if ( CMAKE_SYSTEM MATCHES "Linux" )
     option ( enable-systemd "compile systemd support (if it is available)" on )
 endif ( CMAKE_SYSTEM MATCHES "Linux" )
 
-if ( CMAKE_SYSTEM MATCHES "Darwin" )
+if ( CMAKE_SYSTEM_NAME MATCHES "Darwin|iOS" )
     option ( enable-coreaudio "compile CoreAudio support (if it is available)" on )
     option ( enable-coremidi "compile CoreMIDI support (if it is available)" on )
     option ( enable-framework "create a Mac OSX style FluidSynth.framework" on )
-endif ( CMAKE_SYSTEM MATCHES "Darwin" )
+endif ( CMAKE_SYSTEM_NAME MATCHES "Darwin|iOS" )
 
 if ( CMAKE_SYSTEM MATCHES "OS2" )
     option ( enable-dart "compile DART support (if it is available)" on )
@@ -201,7 +201,7 @@ unset ( ENABLE_UBSAN CACHE )
 
 if ( CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang" OR CMAKE_C_COMPILER_ID STREQUAL "Intel" )
   # If we ever bump to CMake 3.29+, replace this with CMAKE_LANG_COMPILER_LINKER_ID
-  if (NOT (CMAKE_SYSTEM_NAME MATCHES "Darwin|OS2|Emscripten|SunOS") )
+  if (NOT (CMAKE_SYSTEM_NAME MATCHES "Darwin|iOS|OS2|Emscripten|SunOS") )
     set ( CMAKE_EXE_LINKER_FLAGS
           "${CMAKE_EXE_LINKER_FLAGS} -Wl,--as-needed" )
     set ( CMAKE_SHARED_LINKER_FLAGS
@@ -407,14 +407,14 @@ if ( CMAKE_SYSTEM MATCHES "SunOS" )
   set ( LIBFLUID_LIBS "${LIBFLUID_LIBS};nsl;socket" )
 endif ( CMAKE_SYSTEM MATCHES "SunOS" )
 
-# Apple Mac OSX
+# Apple Mac OSX / iOS
 unset ( COREAUDIO_SUPPORT CACHE )
 unset ( COREAUDIO_LIBS CACHE )
 unset ( COREMIDI_SUPPORT CACHE )
 unset ( COREMIDI_LIBS CACHE )
 unset ( DARWIN CACHE )
 unset ( MACOSX_FRAMEWORK CACHE )
-if ( CMAKE_SYSTEM MATCHES "Darwin" )
+if ( CMAKE_SYSTEM_NAME MATCHES "Darwin|iOS" )
   set ( DARWIN 1 )
   set ( CMAKE_INSTALL_NAME_DIR ${CMAKE_INSTALL_FULL_LIBDIR} )
   if ( enable-coreaudio )
@@ -428,13 +428,13 @@ if ( CMAKE_SYSTEM MATCHES "Darwin" )
     check_include_file ( CoreMIDI/MIDIServices.h COREMIDI_FOUND )
     if ( COREMIDI_FOUND )
       set ( COREMIDI_SUPPORT 1 )
-      set ( COREMIDI_LIBS "-Wl,-framework,CoreMIDI,-framework,CoreServices" )
+      set ( COREMIDI_LIBS "-Wl,-framework,CoreFoundation,-framework,CoreMIDI,-framework,CoreServices" )
     endif ( COREMIDI_FOUND )
   endif ( enable-coremidi )
   if ( enable-framework )
     set ( MACOSX_FRAMEWORK 1 )
   endif ( enable-framework )
-endif ( CMAKE_SYSTEM MATCHES "Darwin" )
+endif ( CMAKE_SYSTEM_NAME MATCHES "Darwin|iOS" )
 
 # Android
 if ( ANDROID_ABI )

ios/build.sh

@@ -0,0 +1,85 @@
+#!/bin/bash
+
+# Framework build script for iOS
+# SDL3 is used instead of CoreAudio as CoreAudio/AudioHardware.h is not available in iOS.
+# Assumes the built SDL3 framework for both iOS and iOS simulator is located in /path/to/fluidsynth/SDL/build/SDL3.xcframework 
+# Also assumes the build script is run on a Mac with XCode installed
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SDL3_XCFRAMEWORK_DIR="${SCRIPT_DIR}/../SDL/build/SDL3.xcframework"
+SDL3_CMAKE_DIR_IOS="${SDL3_XCFRAMEWORK_DIR}/ios-arm64/SDL3.framework/CMake"
+SDL3_CMAKE_DIR_IOS_SIMULATOR="${SDL3_XCFRAMEWORK_DIR}/ios-arm64_x86_64-simulator/SDL3.framework/CMake"
+
+# Clean up previous builds
+rm -rf build
+mkdir -p build
+cd build
+rm -rf build-ios build-ios-simulator
+mkdir -p build-ios build-ios-simulator
+
+# Common CMake flags across builds
+CMAKE_COMMON_FLAGS=(
+    -G Xcode
+    -Dosal=cpp11
+    -Denable-framework=ON
+    -Denable-libinstpatch=0
+    -Denable-aufile=OFF
+    -Denable-dbus=OFF
+    -Denable-ladspa=OFF
+    -Denable-midishare=OFF
+    -Denable-opensles=OFF
+    -Denable-oboe=OFF
+    -Denable-oss=OFF
+    -Denable-pipewire=OFF
+    -Denable-portaudio=OFF
+    -Denable-pulseaudio=OFF
+    -Denable-readline=OFF
+    -Denable-coreaudio=OFF
+    -Denable-sdl3=ON
+    -Denable-systemd=OFF
+    -Denable-threads=ON
+    -Denable-waveout=OFF
+    -Denable-network=OFF
+    -Denable-ipv6=OFF
+    -Denable-libsndfile=OFF
+    -DCMAKE_MACOSX_BUNDLE=NO
+    -DBUILD_SHARED_LIBS=ON
+)
+
+# Download iOS toolchain
+curl -o ios.toolchain.cmake https://raw.githubusercontent.com/leetal/ios-cmake/master/ios.toolchain.cmake
+
+# Build for iOS device (arm64)
+echo "Building for iOS device (arm64)..."
+cd build-ios
+cmake ../.. \
+    -DCMAKE_TOOLCHAIN_FILE=../ios.toolchain.cmake \
+    -DPLATFORM=OS64 \
+    -DSDL3_DIR="${SDL3_CMAKE_DIR_IOS}" \
+    "${CMAKE_COMMON_FLAGS[@]}"
+
+xcodebuild -project FluidSynth.xcodeproj -target libfluidsynth -configuration Release -sdk iphoneos build 2>&1
+cd ..
+
+# Build for iOS simulator
+echo "Building for iOS simulator..."
+cd build-ios-simulator
+cmake ../../ \
+    -DCMAKE_TOOLCHAIN_FILE=../ios.toolchain.cmake \
+    -DPLATFORM=SIMULATOR64COMBINED \
+    -DSDL3_DIR="${SDL3_CMAKE_DIR_IOS_SIMULATOR}" \
+    "${CMAKE_COMMON_FLAGS[@]}"
+
+xcodebuild -project FluidSynth.xcodeproj -target libfluidsynth -configuration Release -sdk iphonesimulator build 2>&1
+cd ..
+
+# Create XCFramework from the built dynamic frameworks
+echo "Creating XCFramework..."
+rm -rf FluidSynth.xcframework
+xcodebuild -create-xcframework \
+    -framework build-ios/src/Release-iphoneos/FluidSynth.framework \
+    -framework build-ios-simulator/src/Release-iphonesimulator/FluidSynth.framework \
+    -output FluidSynth.xcframework
+
+echo "FluidSynth.xcframework (dynamic framework) built successfully at build/FluidSynth.xcframework"

src/CMakeLists.txt

@@ -332,6 +332,7 @@ if ( MACOSX_FRAMEWORK )
         FRAMEWORK TRUE
         PUBLIC_HEADER "${public_main_HEADER}"
         FRAMEWORK_VERSION "${LIB_VERSION_CURRENT}"
+        MACOSX_FRAMEWORK_IDENTIFIER "org.fluidsynth.FluidSynth"
         INSTALL_NAME_DIR ""
         VERSION ${LIB_VERSION_INFO}
         SOVERSION ${LIB_VERSION_CURRENT}