IOS: Consolidate build instructions with the wiki

This replaces obsolete instructions to build ScummVM in the README.md
file with a link to the instructions on the wiki. The wiki has also
been updated with additional information that were contained in the
README.md.

and the wiki has been updated with additional instructions.

backends/platform/ios7/README.md

@@ -6,132 +6,7 @@ I tried to use all the latest iOS features to replace the old code. For instance
 
 ## Compilation ##
 
-First, clone the repository:
-```
-$ git clone https://github.com/scummvm/scummvm.git
-```
-
-### Compilation from Xcode ###
-
-This is the recommended way to compile ScummVM, and the only one which makes it possible to run ScummVM on a non-jailbroken device!
-
-The next step is to compile the **create_project** tool. Open the Xcode project you'll found in the **devtools/create\_project/xcode/** directory. Once compiled, copy the binary somewhere in your *PATH*, and create a **build** directory somewhere on your harddisk. It is recommended to create this directory next to the cloned repository (they share the same parent).
-
-Execute the following commands in a terminal:
-```
-$ cd path_to_the_build_directory
-$ create_project path_to_scummvm_repository --xcode --enable-fluidsynth --disable-jpeg --disable-bink --disable-16bit --disable-mt32emu --disable-nasm --disable-opengl --disable-theora --disable-taskbar
-```
-
-This will create an Xcode project for ScummVM, for both the OS X, and the iOS target.
-
-Now, download the external libraries from http://bsr43.free.fr/scummvm/ScummVM-iOS-libraries.zip. Unzip the archive in your **build** directory. Please make sure that the **lib**, and **include** directories are at the root of the **build** directory, not in a subdirectory.
-
-Now, your **build** directory should contain:
-* a generated **engines** directory,
-* a generated **scummvm.xcodeproj** project,
-* an **include** directory,
-* a **lib** directory.
-
-You are ready to compile ScummVM: open the **scummvm.xcodeproj** project, and build it.
-
-### Compilation from command line ###
-
-For jailbroken devices, it is also possible to compile the project from command line. You'll need a working toolchain, and some tools, like **ldid**, to fake the code signature.
-
-Here is a script to download, and compile all the required tools. This script has been wrote for Debian 8.2, and should be run as root.
-
-```
-#!/bin/bash
-
-if [ $UID -ne 0 ]; then
-	echo "This script should be run by the root user"
-	exit 1
-fi
-
-# Install the Clang compiler
-apt-get install -y clang-3.4 libclang-3.4-dev llvm-3.4 libtool bison flex automake subversion git pkg-config wget libssl-dev uuid-dev libxml2-dev || exit 1
-
-# Add LLVM to the linker library path
-echo /usr/lib/llvm-3.4/lib > /etc/ld.so.conf.d/libllvm-3.4.conf
-ldconfig
-
-# Add symlinks for the LLVM headers
-ln -s /usr/lib/llvm-3.4/bin/llvm-config /usr/bin/llvm-config || exit 1
-ln -s /usr/include/llvm-3.4/llvm /usr/include/llvm || exit 1
-ln -s /usr/include/llvm-c-3.4/llvm-c /usr/include/llvm-c || exit 1
-ln -s /usr/bin/clang-3.4 /usr/bin/clang || exit 1
-ln -s /usr/bin/clang++-3.4 /usr/bin/clang++ || exit 1
-
-# Build the linker
-svn checkout http://ios-toolchain-based-on-clang-for-linux.googlecode.com/svn/trunk/cctools-porting || exit 1
-cd cctools-porting
-sed -i'' 's/proz -k=20  --no-curses/wget/g' cctools-ld64.sh
-./cctools-ld64.sh || exit 1
-
-cd cctools-855-ld64-236.3
-./autogen.sh || exit 1
-./configure --prefix=/usr/local --target=arm-apple-darwin11 || exit 1
-make || exit 1
-make install || exit 1
-cd ../..
-
-# Install ios-tools
-wget https://ios-toolchain-based-on-clang-for-linux.googlecode.com/files/iphonesdk-utils-2.0.tar.gz || exit 1
-tar xzf iphonesdk-utils-2.0.tar.gz
-cd iphonesdk-utils-2.0
-patch -p0 <<_EOF
-*** genLocalization2/getLocalizedStringFromFile.cpp    2015-04-02 04:45:39.309837816 +0530
---- genLocalization2/getLocalizedStringFromFile.cpp    2015-04-02 04:45:11.525700021 +0530
-***************
-*** 113,115 ****
-      clang::HeaderSearch headerSearch(headerSearchOptions,
--                                      fileManager,
-                                       *pDiagnosticsEngine,
---- 113,115 ----
-      clang::HeaderSearch headerSearch(headerSearchOptions,
-+                                      sourceManager,
-                                       *pDiagnosticsEngine,
-***************
-*** 129,134 ****
-                  false);
--     clang::HeaderSearch headerSearch(fileManager,
-                                       *pDiagnosticsEngine,
-                                       languageOptions,
--                                      pTargetInfo);
-      ApplyHeaderSearchOptions(headerSearch, headerSearchOptions, languageOptions, pTargetInfo->getTriple());
---- 129,134 ----
-                  false);
-+     clang::HeaderSearch headerSearch(fileManager);/*,
-                                       *pDiagnosticsEngine,
-                                       languageOptions,
-+                                      pTargetInfo);*/
-      ApplyHeaderSearchOptions(headerSearch, headerSearchOptions, languageOptio
-_EOF
-
-./autogen.sh || exit 1
-CC=clang CXX=clang++ ./configure --prefix=/usr/local || exit 1
-make || exit 1
-make install || exit 1
-
-# Install the iOS SDK 8.1
-mkdir -p /usr/share/ios-sdk
-cd /usr/share/ios-sdk
-wget http://iphone.howett.net/sdks/dl/iPhoneOS8.1.sdk.tbz2 || exit 1
-tar xjf iPhoneOS8.1.sdk.tbz2
-rm iPhoneOS8.1.sdk.tbz2
-```
-
-Now, in order to compile ScummVM, execute the following commands:
-```
-$ export SDKROOT=/usr/share/ios-sdk/iPhoneOS8.1.sdk
-$ export CC=ios-clang
-$ export CXX=ios-clang++
-$ ./configure --host=ios7 --disable-mt32emu --enable-release
-$ make ios7bundle
-```
-
-At the end of the compilation, you'll find a **ScummVM.app** application: copy it over SSH, and reboot your device.
+See http://wiki.scummvm.org/index.php/Compiling_ScummVM/iPhone
 
 ## Usage ##