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#!/bin/bash
# Builds libevent for all three current iPhone targets: iPhoneSimulator-i386,
# iPhoneOS-armv6, iPhoneOS-armv7.
#
# Copyright 2012 Mike Tigas <mike@tig.as>
#
# Based on work by Felix Schulze on 16.12.10.
# Copyright 2010 Felix Schulze. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
###########################################################################
# Choose your libevent version and your currently-installed iOS SDK version:
#
VERSION="2.0.20-stable"
SDKVERSION="6.0"
#
#
###########################################################################
#
# Don't change anything under this line!
#
###########################################################################
# No need to change this since xcode build will only compile in the
# necessary bits from the libraries we create
ARCHS="i386 armv7 armv7s"
DEVELOPER=`xcode-select -print-path`
cd "`dirname \"$0\"`"
REPOROOT=$(pwd)
# Where we'll end up storing things in the end
OUTPUTDIR="${REPOROOT}/dependencies"
mkdir -p ${OUTPUTDIR}/include
mkdir -p ${OUTPUTDIR}/lib
BUILDDIR="${REPOROOT}/build"
# where we will keep our sources and build from.
SRCDIR="${BUILDDIR}/src"
mkdir -p $SRCDIR
# where we will store intermediary builds
INTERDIR="${BUILDDIR}/built"
mkdir -p $INTERDIR
########################################
cd $SRCDIR
# Exit the script if an error happens
set -e
if [ ! -e "${SRCDIR}/libevent-${VERSION}.tar.gz" ]; then
echo "Downloading libevent-${VERSION}.tar.gz"
curl -LO https://github.com/downloads/libevent/libevent/libevent-${VERSION}.tar.gz
else
echo "Using libevent-${VERSION}.tar.gz"
fi
tar zxf libevent-${VERSION}.tar.gz -C $SRCDIR
cd "${SRCDIR}/libevent-${VERSION}"
set +e # don't bail out of bash script if ccache doesn't exist
CCACHE=`which ccache`
if [ $? == "0" ]; then
echo "Building with ccache: $CCACHE"
CCACHE="${CCACHE} "
else
echo "Building without ccache"
CCACHE=""
fi
set -e # back to regular "bail out on error" mode
for ARCH in ${ARCHS}
do
if [ "${ARCH}" == "i386" ];
then
PLATFORM="iPhoneSimulator"
EXTRA_CONFIG=""
else
PLATFORM="iPhoneOS"
EXTRA_CONFIG="--host=arm-apple-darwin10"
fi
mkdir -p "${INTERDIR}/${PLATFORM}${SDKVERSION}-${ARCH}.sdk"
./configure --disable-shared --enable-static --disable-debug-mode ${EXTRA_CONFIG} \
--prefix="${INTERDIR}/${PLATFORM}${SDKVERSION}-${ARCH}.sdk" \
CC="${CCACHE}${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer/usr/bin/gcc -arch ${ARCH}" \
LDFLAGS="$LDFLAGS -L${OUTPUTDIR}/lib" \
CFLAGS="$CFLAGS -I${OUTPUTDIR}/include -isysroot ${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer/SDKs/${PLATFORM}${SDKVERSION}.sdk" \
CPPFLAGS="$CPPFLAGS -I${OUTPUTDIR}/include -isysroot ${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer/SDKs/${PLATFORM}${SDKVERSION}.sdk"
# Build the application and install it to the fake SDK intermediary dir
# we have set up. Make sure to clean up afterward because we will re-use
# this source tree to cross-compile other targets.
make -j2
make install
make clean
done
########################################
echo "Build library..."
# These are the libs that comprise libevent. `libevent_openssl` and `libevent_pthreads`
# may not be compiled if those dependencies aren't available.
OUTPUT_LIBS="libevent.a libevent_core.a libevent_extra.a libevent_openssl.a libevent_pthreads.a"
for OUTPUT_LIB in ${OUTPUT_LIBS}; do
INPUT_LIBS=""
for ARCH in ${ARCHS}; do
if [ "${ARCH}" == "i386" ];
then
PLATFORM="iPhoneSimulator"
else
PLATFORM="iPhoneOS"
fi
INPUT_ARCH_LIB="${INTERDIR}/${PLATFORM}${SDKVERSION}-${ARCH}.sdk/lib/${OUTPUT_LIB}"
if [ -e $INPUT_ARCH_LIB ]; then
INPUT_LIBS="${INPUT_LIBS} ${INPUT_ARCH_LIB}"
fi
done
# Combine the three architectures into a universal library.
if [ -n "$INPUT_LIBS" ]; then
lipo -create $INPUT_LIBS \
-output "${OUTPUTDIR}/lib/${OUTPUT_LIB}"
else
echo "$OUTPUT_LIB does not exist, skipping (are the dependencies installed?)"
fi
done
for ARCH in ${ARCHS}; do
if [ "${ARCH}" == "i386" ];
then
PLATFORM="iPhoneSimulator"
else
PLATFORM="iPhoneOS"
fi
cp -R ${INTERDIR}/${PLATFORM}${SDKVERSION}-${ARCH}.sdk/include/* ${OUTPUTDIR}/include/
if [ $? == "0" ]; then
# We only need to copy the headers over once. (So break out of forloop
# once we get first success.)
break
fi
done
####################
echo "Building done."
echo "Cleaning up..."
rm -fr ${INTERDIR}
rm -fr "${SRCDIR}/libevent-${VERSION}"
echo "Done."