Added a README file regarding WinRT support

To note, this file is currently formatted with CRLF line endings, rather than
LF, to allow the file to be viewed with Notepad.

build-scripts/gcc-fat.sh

@@ -0,0 +1,102 @@
+#!/bin/sh
+#
+# Build Universal binaries on Mac OS X, thanks Ryan!
+#
+# Usage: ./configure CC="sh gcc-fat.sh" && make && rm -rf x86 x64
+
+DEVELOPER="`xcode-select -print-path`/Platforms/MacOSX.platform/Developer"
+
+# Intel 32-bit compiler flags (10.5 runtime compatibility)
+GCC_COMPILE_X86="gcc -arch i386 -mmacosx-version-min=10.5 \
+-I/usr/local/include"
+
+GCC_LINK_X86="-mmacosx-version-min=10.5"
+
+# Intel 64-bit compiler flags (10.6 runtime compatibility)
+GCC_COMPILE_X64="gcc -arch x86_64 -mmacosx-version-min=10.6 \
+-DMAC_OS_X_VERSION_MIN_REQUIRED=1050 \
+-I/usr/local/include"
+
+GCC_LINK_X64="-mmacosx-version-min=10.6"
+
+# Output both PowerPC and Intel object files
+args="$*"
+compile=yes
+link=yes
+while test x$1 != x; do
+    case $1 in
+        --version) exec gcc $1;;
+        -v) exec gcc $1;;
+        -V) exec gcc $1;;
+        -print-prog-name=*) exec gcc $1;;
+        -print-search-dirs) exec gcc $1;;
+        -E) GCC_COMPILE_X86="$GCC_COMPILE_X86 -E"
+            GCC_COMPILE_X64="$GCC_COMPILE_X64 -E"
+            compile=no; link=no;;
+        -c) link=no;;
+        -o) output=$2;;
+        *.c|*.cc|*.cpp|*.S) source=$1;;
+    esac
+    shift
+done
+if test x$link = xyes; then
+    GCC_COMPILE_X86="$GCC_COMPILE_X86 $GCC_LINK_X86"
+    GCC_COMPILE_X64="$GCC_COMPILE_X64 $GCC_LINK_X64"
+fi
+if test x"$output" = x; then
+    if test x$link = xyes; then
+        output=a.out
+    elif test x$compile = xyes; then
+        output=`echo $source | sed -e 's|.*/||' -e 's|\(.*\)\.[^\.]*|\1|'`.o
+    fi
+fi
+
+# Compile X86 32-bit
+if test x"$output" != x; then
+    dir=x86/`dirname $output`
+    if test -d $dir; then
+        :
+    else
+        mkdir -p $dir
+    fi
+fi
+set -- $args
+while test x$1 != x; do
+    if test -f "x86/$1" && test "$1" != "$output"; then
+        x86_args="$x86_args x86/$1"
+    else
+        x86_args="$x86_args $1"
+    fi
+    shift
+done
+$GCC_COMPILE_X86 $x86_args || exit $?
+if test x"$output" != x; then
+    cp $output x86/$output
+fi
+
+# Compile X86 32-bit
+if test x"$output" != x; then
+    dir=x64/`dirname $output`
+    if test -d $dir; then
+        :
+    else
+        mkdir -p $dir
+    fi
+fi
+set -- $args
+while test x$1 != x; do
+    if test -f "x64/$1" && test "$1" != "$output"; then
+        x64_args="$x64_args x64/$1"
+    else
+        x64_args="$x64_args $1"
+    fi
+    shift
+done
+$GCC_COMPILE_X64 $x64_args || exit $?
+if test x"$output" != x; then
+    cp $output x64/$output
+fi
+
+if test x"$output" != x; then
+    lipo -create -o $output x86/$output x64/$output
+fi