libmill iOS cross-compile for 32 bit (armv7) and 64 bit (arm64) iOS, and i386 and x86_64 simulators

iosbuild.sh

#  Copyright (c) 2015 Bent Cardan

#  Permission is hereby granted, free of charge, to any person obtaining a copy
#  of this software and associated documentation files (the "Software"),
#  to deal in the Software without restriction, including without limitation
#  the rights to use, copy, modify, merge, publish, distribute, sublicense,
#  and/or sell copies of the Software, and to permit persons to whom
#  the Software is furnished to do so, subject to the following conditions:

#  The above copyright notice and this permission notice shall be included
#  in all copies or substantial portions of the Software.

#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
#  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
#  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
#  IN THE SOFTWARE.

# libmill cross-compiled for multi arch iOS configured for Xcode 7
# might work on Xcode 6 too, I havent tried..

# minimum deployment target is set to iOS 7.1, tested with iOS 9.2
# save this file as iosbuild.sh and $ chmod a+x iosbuild.sh so u can execute it
# it will download latest libmill, and remove these install src files afterward


# .
# ├── iosbuild.sh
# └── libmill-ios
#     ├── include
#     │   └── libmill.h
#     └── lib
#         └── libmill.a

# after cross-compiling, add the .h and .a files to ur Xcode project and go to:
#
#          Build Settings -> Search Paths -> Library Search Paths
#
# add your full libmill-ios PATH/lib, a.k.a. PREFIX/lib to Library Search Paths
# On mac that will look something like /Users/reqshark/iosstuff/libmill-ios/lib

export PREFIX="$(pwd)/libmill-ios"
export IOS32_PREFIX="$PREFIX/tmp/ios32"
export IOS64_PREFIX="$PREFIX/tmp/ios64"
export SIMULATOR32_PREFIX="$PREFIX/tmp/simulator32"
export SIMULATOR64_PREFIX="$PREFIX/tmp/simulator64"
export IOS_SIMULATOR_VERSION_MIN=${IOS_SIMULATOR_VERSION_MIN-"7.1"}
export IOS_VERSION_MIN=${IOS_VERSION_MIN-"7.1"}
export XCODEDIR=$(xcode-select -p)

rm -rf libmill-ios libmill
git clone git@github.com:sustrik/libmill.git
cd libmill && ./autogen.sh

### i386 simulator
# Build
export BASEDIR="${XCODEDIR}/Platforms/iPhoneSimulator.platform/Developer"
export PATH="${BASEDIR}/usr/bin:$BASEDIR/usr/sbin:$PATH"
export SDK="${BASEDIR}/SDKs/iPhoneSimulator9.2.sdk"
export CFLAGS="-Oz -arch i386 -isysroot ${SDK} -mios-simulator-version-min=${IOS_SIMULATOR_VERSION_MIN}"
export LDFLAGS="-arch i386 -isysroot ${SDK} -mios-simulator-version-min=${IOS_SIMULATOR_VERSION_MIN}"
make distclean > /dev/null
./configure --disable-shared \
            --prefix="$SIMULATOR32_PREFIX" || exit 1
make -j3 install || exit 1
### x86_64 simulator
export CFLAGS="-Oz -arch x86_64 -isysroot ${SDK} -mios-simulator-version-min=${IOS_SIMULATOR_VERSION_MIN}"
export LDFLAGS="-arch x86_64 -isysroot ${SDK} -mios-simulator-version-min=${IOS_SIMULATOR_VERSION_MIN}"
make distclean > /dev/null
./configure --disable-shared \
            --prefix="$SIMULATOR64_PREFIX"
make -j3 install || exit 1


# Build for iOS
# Build
export BASEDIR="${XCODEDIR}/Platforms/iPhoneOS.platform/Developer"
export PATH="${BASEDIR}/usr/bin:$BASEDIR/usr/sbin:$PATH"
export SDK="${BASEDIR}/SDKs/iPhoneOS.sdk"
### 32-bit iOS
export CFLAGS="-O2 -mthumb -arch armv7 -isysroot ${SDK} -mios-version-min=${IOS_VERSION_MIN} -fembed-bitcode"
export LDFLAGS="-mthumb -arch armv7 -isysroot ${SDK} -mios-version-min=${IOS_VERSION_MIN} -fembed-bitcode"
make distclean > /dev/null
./configure --host=arm-apple-darwin10 \
            --disable-shared \
            --prefix="$IOS32_PREFIX" || exit 1
make -j3 install || exit 1
## 64-bit iOS
#-fobjc-abi-version=2
export SDK="${BASEDIR}/SDKs/iPhoneOS9.2.sdk"
export CFLAGS="-O2 -arch arm64 -isysroot ${SDK} -mios-version-min=${IOS_VERSION_MIN} -fembed-bitcode"
export LDFLAGS="-mthumb -arch arm64 -isysroot ${SDK} -mios-version-min=${IOS_VERSION_MIN} -fembed-bitcode"
make distclean > /dev/null
./configure --host=arm-apple-darwin \
            --disable-shared \
            --prefix="$IOS64_PREFIX" || exit 1
make -j3 install || exit 1

# Create universal binary and include folder
rm -fr -- "$PREFIX/include" "$PREFIX/libmill.a" 2> /dev/null
mkdir -p -- "$PREFIX/lib"
lipo -create \
  "$SIMULATOR32_PREFIX/lib/libmill.a" \
  "$SIMULATOR64_PREFIX/lib/libmill.a" \
  "$IOS32_PREFIX/lib/libmill.a" \
  "$IOS64_PREFIX/lib/libmill.a" \
  -output "$PREFIX/lib/libmill.a"
mv -f -- "$IOS32_PREFIX/include" "$PREFIX/"
echo
echo "libmill has been installed into $PREFIX"
echo
file -- "$PREFIX/lib/libmill.a"
# Cleanup
rm -rf -- "$PREFIX/tmp"
make distclean > /dev/null
cd .. && rm -rf libmill