build-libev.sh

#!/bin/bash
# shellcheck disable=2016,2043,2044,2046,2086

VERSION="4.33"
SRC=$(pwd)/libev
DST=$(pwd)/libev.builds
PLATFORMS="macosx iphoneos iphonesimulator appletvos appletvsimulator xros xrsimulator"

set -e

echo "Checking out libev..."
if [ -d "$SRC" ] || [ -d "$DST" ]; then
  echo "Source or Destination folder not empty." && exit 1
else
  curl "http://dist.schmorp.de/libev/libev-$VERSION.tar.gz" | tar -xz && mv libev-$VERSION libev
fi

for PLATFORM in $PLATFORMS; do
  case $PLATFORM in
    macosx)
      ARCHS="arm64 x86_64"
      EXTRA_CFLAGS="-O3 -mmacosx-version-min=10.11"
    ;;
    iphoneos)
      ARCHS="arm64"
      EXTRA_CFLAGS="-O3 -mios-version-min=9.0"
    ;;
    iphonesimulator)
      ARCHS="arm64 x86_64"
      EXTRA_CFLAGS="-O3 -mios-simulator-version-min=9.0"
    ;;
    appletvos)
      ARCHS="arm64"
      EXTRA_CFLAGS="-O3 -mtvos-version-min=9.0"
    ;;
    appletvsimulator)
      ARCHS="arm64 x86_64"
      EXTRA_CFLAGS="-O3 -mtvos-simulator-version-min=9.0"
    ;;
    xros)
      ARCHS="arm64"
      EXTRA_CFLAGS="-O3"
    ;;
    xrsimulator)
      ARCHS="arm64 x86_64"
      EXTRA_CFLAGS="-O3"
    ;;
  esac
  for ARCH in $ARCHS; do
    echo "Building for $PLATFORM-$ARCH..."
    PREFIX="$DST/$PLATFORM-$ARCH"
    mkdir -p "$PREFIX"
    pushd "$PREFIX"
      CFLAGS="-isysroot $(xcrun --sdk $PLATFORM --show-sdk-path) -arch $ARCH $EXTRA_CFLAGS" \
      "$SRC"/configure --srcdir="$SRC" --host="${ARCH/arm64/arm}"-apple-darwin --prefix="$PREFIX" --disable-shared
      make install
    popd
  done
  mkdir -p "$DST/libs/$PLATFORM"
  lipo -create $(find $DST/$PLATFORM-*/lib -name libev.a) -output "$DST/libs/$PLATFORM/libev.a"
done

echo "Copying headers..."
mkdir -p "$DST/include"
rsync -av --delete "$SRC"/{ev.h,ev++.h,event.h} "$DST/include"

echo "Creating xcframework..."
pushd "$DST"
  XCFRAMEWORK_ARGS=""
  for PLATFORM in $PLATFORMS; do
    XCFRAMEWORK_ARGS="$XCFRAMEWORK_ARGS -library $DST/libs/$PLATFORM/libev.a -headers $DST/include"
  done
  xcodebuild -create-xcframework $XCFRAMEWORK_ARGS -output libev.xcframework
  zip -ry9 libev.xcframework.zip libev.xcframework
popd

echo "Creating framework..."
echo "
name: libev
options:
  deploymentTarget:
    macOS: 10.11
    iOS: 9.0
    tvOS: 9.0
    visionOS: 1.0
targets:
  ev:
    type: framework
    supportedDestinations: [
      macOS,
      iOS,
      tvOS,
      visionOS
    ]
    settings:
      DEFINES_MODULE: NO
      SKIP_INSTALL: NO
      CODE_SIGNING_ALLOWED: NO
      GENERATE_INFOPLIST_FILE: YES
      BUILD_LIBRARY_FOR_DISTRIBUTION: YES
      OTHER_LDFLAGS: -all_load
      MARKETING_VERSION: $VERSION
      PRODUCT_BUNDLE_IDENTIFIER: framework.ev
    sources:
      - path: include
        buildPhase: headers
        headerVisibility: public
    dependencies:
      - framework: libev.xcframework
aggregateTargets:
  aggregate:
    buildScripts:
      - name: Create xcframework
        script: |
          xcodebuild archive \
          -scheme ev \
          -destination 'generic/platform=macOS' \
          -archivePath Archives/ev_macOS.xcarchive
          xcodebuild archive \
          -scheme ev \
          -destination 'generic/platform=iOS' \
          -archivePath Archives/ev_iOS.xcarchive
          xcodebuild archive \
          -scheme ev \
          -destination 'generic/platform=iOS Simulator' \
          -archivePath Archives/ev_iOS_Simulator.xcarchive
          xcodebuild archive \
          -scheme ev \
          -destination 'generic/platform=tvOS' \
          -archivePath Archives/ev_tvOS.xcarchive
          xcodebuild archive \
          -scheme ev \
          -destination 'generic/platform=tvOS Simulator' \
          -archivePath Archives/ev_tvOS_Simulator.xcarchive
          xcodebuild archive \
          -scheme ev \
          -destination 'generic/platform=visionOS' \
          -archivePath Archives/ev_visionOS.xcarchive
          xcodebuild archive \
          -scheme ev \
          -destination 'generic/platform=visionOS Simulator' \
          -archivePath Archives/ev_visionOS_Simulator.xcarchive
          xcodebuild -create-xcframework \
          -archive 'Archives/ev_macOS.xcarchive' -framework ev.framework \
          -archive 'Archives/ev_iOS.xcarchive' -framework ev.framework \
          -archive 'Archives/ev_iOS_Simulator.xcarchive' -framework ev.framework \
          -archive 'Archives/ev_tvOS.xcarchive' -framework ev.framework \
          -archive 'Archives/ev_tvOS_Simulator.xcarchive' -framework ev.framework \
          -archive 'Archives/ev_visionOS.xcarchive' -framework ev.framework \
          -archive 'Archives/ev_visionOS_Simulator.xcarchive' -framework ev.framework \
          -output ev.xcframework
" > "$DST/project.yml"

pushd "$DST"
  xcodegen && xcodebuild build -scheme aggregate
  zip -ry9 ev.xcframework.zip ev.xcframework
popd