dweinstein · February 1, 2016 03:38 · Aug 15, 2013 · Aug 15, 2013
diff --git a/build-libevent-ios.sh b/build-libevent-ios.sh
@@ -9,6 +9,7 @@ LIB_NAME="libevent-2.0.21-stable"
 TEMP_DIR="$(pwd)/tmp"
 TEMP_LIB_PATH="$(pwd)/tmp/${LIB_NAME}"
 
+# !!! User configuration required: point this at the directory the openssl headers and libs are to be found
 DEPENDENCIES_DIR="$(pwd)/libevent-dependencies"
 DEPENDENCIES_DIR_LIB="${DEPENDENCIES_DIR}/lib"
 DEPENDENCIES_DIR_HEAD="${DEPENDENCIES_DIR}/include"

diff --git a/build-libevent-ios.sh b/build-libevent-ios.sh
@@ -0,0 +1,108 @@
+#!/bin/bash
+set -u
+
+# Setup architectures, library name and other vars + cleanup from previous runs
+ARCHS=("armv7" "armv7s" "i386")
+SDKS=("iphoneos" "iphoneos" "macosx")
+LIB_NAME="libevent-2.0.21-stable"
+
+TEMP_DIR="$(pwd)/tmp"
+TEMP_LIB_PATH="$(pwd)/tmp/${LIB_NAME}"
+
+DEPENDENCIES_DIR="$(pwd)/libevent-dependencies"
+DEPENDENCIES_DIR_LIB="${DEPENDENCIES_DIR}/lib"
+DEPENDENCIES_DIR_HEAD="${DEPENDENCIES_DIR}/include"
+
+PLATFORM_DEPENDENCIES_DIR="${DEPENDENCIES_DIR}/platform"
+
+LIB_DEST_DIR="$(pwd)/libevent-dest-lib"
+HEADER_DEST_DIR="$(pwd)/libevent-dest-include"
+
+PLATFORM_LIBS=("libz.dylib") # Platform specific lib files to be copied for the build 
+PLATFORM_HEADERS=("zlib.h") # Platform specific header files to be copied for the build
+
+rm -rf "${TEMP_LIB_PATH}*" "${LIB_NAME}"
+
+
+###########################################################################
+# Unarchive library, then configure and make for specified architectures
+
+# Copy platform dependency libs and headers
+copy_platform_dependencies()
+{
+   ARCH=$1; SDK_PATH=$2;
+
+   PLATFORM_DEPENDENCIES_DIR_H="${PLATFORM_DEPENDENCIES_DIR}/${ARCH}/include"
+   PLATFORM_DEPENDENCIES_DIR_LIB="${PLATFORM_DEPENDENCIES_DIR}/${ARCH}/lib"
+   mkdir -p "${PLATFORM_DEPENDENCIES_DIR_H}"
+   mkdir -p "${PLATFORM_DEPENDENCIES_DIR_LIB}"
+
+   for PLIB in "${PLATFORM_LIBS[@]}"; do
+      cp "${SDK_PATH}/usr/lib/$PLIB" "${PLATFORM_DEPENDENCIES_DIR_LIB}"
+   done
+
+   for PHEAD in "${PLATFORM_HEADERS[@]}"; do
+      cp "${SDK_PATH}/usr/include/$PHEAD" "${PLATFORM_DEPENDENCIES_DIR_H}"   
+   done
+}
+
+# Unarchive, setup temp folder and run ./configure, 'make' and 'make install'
+configure_make()
+{
+   ARCH=$1; GCC=$2; SDK_PATH=$3;
+   LOG_FILE="${TEMP_LIB_PATH}-${ARCH}.log"
+   tar xfz "${LIB_NAME}.tar.gz";
+
+   pushd .; cd "${LIB_NAME}";
+
+   copy_platform_dependencies "${ARCH}" "${SDK_PATH}"
+
+   # Configure and make
+
+   if [ "${ARCH}" == "i386" ];
+   then
+      HOST_FLAG=""
+   else
+      HOST_FLAG="--host=arm-apple-darwin11"
+   fi
+
+   mkdir -p "${TEMP_LIB_PATH}-${ARCH}"
+
+   ./configure --disable-shared --enable-static --disable-debug-mode ${HOST_FLAG} \
+   --prefix="${TEMP_LIB_PATH}-${ARCH}" \
+   CC="${GCC} " \
+   LDFLAGS="-L${DEPENDENCIES_DIR_LIB}" \
+   CFLAGS=" -arch ${ARCH} -isysroot ${SDK_PATH} -I${DEPENDENCIES_DIR_HEAD}" \
+   CPPLAGS=" -arch ${ARCH} -isysroot ${SDK_PATH} -I${DEPENDENCIES_DIR_HEAD} " &> "${LOG_FILE}"
+
+   make -j2 &> "${LOG_FILE}"; make install &> "${LOG_FILE}";
+
+   popd; rm -rf "${LIB_NAME}";
+}
+for ((i=0; i < ${#ARCHS[@]}; i++)); 
+do
+   SDK_PATH=$(xcrun -sdk ${SDKS[i]} --show-sdk-path)
+   GCC=$(xcrun -sdk ${SDKS[i]} -find gcc)
+   configure_make "${ARCHS[i]}" "${GCC}" "${SDK_PATH}"
+done
+
+# Combine libraries for different architectures into one
+# Use .a files from the temp directory by providing relative paths
+mkdir -p "${LIB_DEST_DIR}"
+create_lib()
+{
+   LIB_SRC=$1; LIB_DST=$2;
+   LIB_PATHS=( "${ARCHS[@]/#/${TEMP_LIB_PATH}-}" )
+   LIB_PATHS=( "${LIB_PATHS[@]/%//${LIB_SRC}}" )
+   lipo ${LIB_PATHS[@]} -create -output "${LIB_DST}"
+}
+LIBS=("libevent.a" "libevent_core.a" "libevent_extra.a" "libevent_openssl.a" "libevent_pthreads.a")
+for DEST_LIB in "${LIBS[@]}";
+do
+   create_lib "lib/${DEST_LIB}" "${LIB_DEST_DIR}/${DEST_LIB}"
+done
+
+# Copy header files + final cleanups
+mkdir -p "${HEADER_DEST_DIR}"
+cp -R "${TEMP_LIB_PATH}-${ARCHS[0]}/include" "${HEADER_DEST_DIR}"
+rm -rf "${TEMP_DIR}"