Update build_ios_libs.sh script to build new Objective-C API

talk/build/build_ios_libs.sh

 #!/bin/bash
 #
 # libjingle
 # Copyright 2015 Google Inc.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 #  1. Redistributions of source code must retain the above copyright notice,
 #     this list of conditions and the following disclaimer.
 #  2. Redistributions in binary form must reproduce the above copyright notice,
 #     this list of conditions and the following disclaimer in the documentation
 #     and/or other materials provided with the distribution.
 #  3. The name of the author may not be used to endorse or promote products
 #     derived from this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 # WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 # EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # Generates static FAT libraries for ios in out_ios_libs.
 
+# Flag to build the new or legacy version of the API.
+USE_LEGACY_API=1
+
 # Check for Darwin.
 if [[ ! $(uname) = "Darwin" ]]; then
   echo "OS/X required." >&2
 fi
 
 # Check for libtool.
 if [[ -z $(which libtool) ]]; then
   echo "Missing libtool binary." >&2
 fi
 
 # Check for GYP generator.
 SCRIPT_DIR=$(dirname $0)
 WEBRTC_BASE_DIR=${SCRIPT_DIR}/../..
 GYP_WEBRTC_SCRIPT=${WEBRTC_BASE_DIR}/webrtc/build/gyp_webrtc
 if [[ ! -x ${GYP_WEBRTC_SCRIPT} ]]; then
   echo "Failed to find gyp generator." >&2
   exit 1
 fi
+# Check for export headers script.
+EXPORT_HEADERS_SCRIPT=${SCRIPT_DIR}/export_headers
+if [[ ! -x ${EXPORT_HEADERS_SCRIPT} ]]; then
+  echo "Failed to find export headers script." >&2
+  exit 1
+fi
 # Check for merge script.
 MERGE_SCRIPT=${SCRIPT_DIR}/merge_ios_libs
 if [[ ! -x ${MERGE_SCRIPT} ]]; then
   echo "Failed to find library merging script." >&2
   exit 1
 fi
 
 pushd ${WEBRTC_BASE_DIR}
 LIBRARY_BASE_DIR="out_ios_libs"
 
 function build_webrtc {
   OUTPUT_DIR=$1
   FLAVOR=$2
   TARGET_ARCH=$3
-  TARGET_SUBARCH=$4
   if [[ ${TARGET_ARCH} = 'arm' || ${TARGET_ARCH} = 'arm64' ]]; then
     FLAVOR="${FLAVOR}-iphoneos"
   else
     FLAVOR="${FLAVOR}-iphonesimulator"
   fi
   export GYP_DEFINES="OS=ios target_arch=${TARGET_ARCH} clang_xcode=1"
   export GYP_GENERATORS="ninja"
   export GYP_GENERATOR_FLAGS="output_dir=${OUTPUT_DIR}"
   webrtc/build/gyp_webrtc talk/build/merge_ios_libs.gyp
-  ninja -C ${OUTPUT_DIR}/${FLAVOR} libjingle_peerconnection_objc_no_op
+  if [[ ${USE_LEGACY_API} -eq 1 ]]; then
+    ninja -C ${OUTPUT_DIR}/${FLAVOR} libjingle_peerconnection_objc_no_op
+  else
+    ninja -C ${OUTPUT_DIR}/${FLAVOR} webrtc_api_objc_no_op
+  fi
   mkdir -p ${LIBRARY_BASE_DIR}/${TARGET_ARCH}
   mv ${OUTPUT_DIR}/${FLAVOR}/*.a ${LIBRARY_BASE_DIR}/${TARGET_ARCH}
 }
 
 # Build all the common architectures.
 build_webrtc "out_ios_arm" "Release" "arm"
 build_webrtc "out_ios_arm64" "Release" "arm64"
 build_webrtc "out_ios_ia32" "Release" "ia32"
 build_webrtc "out_ios_x86_64" "Release" "x64"
 
 popd
 
+# Export header files.
+${EXPORT_HEADERS_SCRIPT} ${WEBRTC_BASE_DIR}/${LIBRARY_BASE_DIR} \
+    ${USE_LEGACY_API}
+
 # Merge the libraries together.
 ${MERGE_SCRIPT} ${WEBRTC_BASE_DIR}/${LIBRARY_BASE_DIR}