Initial commit

added libraries:
opus
flac
libsndfile

updated:
libvorbis
libogg
openal

- Everything works as expected for now. Bare in mind libsndfile needed the check for whether or not it could find the xiph libraries removed in order for this to work.

Engine/lib/libsndfile/Scripts/git-pre-commit-hook

@@ -0,0 +1,84 @@
+#!/bin/sh
+
+if git rev-parse --verify HEAD >/dev/null 2>&1 ; then
+	against=HEAD
+else
+	# Initial commit: diff against an empty tree object
+	against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+	fi
+
+# Redirect output to stderr.
+exec 1>&2
+
+#-------------------------------------------------------------------------------
+# Prevent files with non-ascii filenames from being committed.
+
+if test $(git diff --cached --name-only --diff-filter=A -z $against | LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0 ; then
+	echo "Error: Attempt to add a non-ascii file name."
+	echo
+	echo "This can cause problems if you want to work"
+	echo "with people on other platforms."
+	echo
+	echo "To be portable it is advisable to rename the file ..."
+	echo
+	echo "Commit aborted."
+	exit 1
+	fi
+
+#-------------------------------------------------------------------------------
+# Check the formatting of all C files.
+
+# http://man.openbsd.org/sed#r
+# http://man.openbsd.org/sed#E
+# http://netbsd.gw.com/cgi-bin/man-cgi?sed++NetBSD-current
+# https://github.com/freebsd/freebsd/blob/master/usr.bin/sed/main.c
+# http://git.savannah.gnu.org/gitweb/?p=sed.git;a=blob;f=sed/sed.c
+# GNU has -r and -E (undocumented); MacOS has -E but not -r; Sunos has neither.
+files=$(git diff-index --name-status --cached HEAD | grep -v ^D | sed -E "s/^[A-Z]+[A-Z0-9]*[ \t]+/ /")
+
+cfiles=""
+for f in $files ; do
+	if test `dirname $f` = "src/ALAC" ; then
+		echo "Skipping cstyle checking on $f"
+	elif test `echo $f | grep -c "\.[ch]$"` -gt 0 ; then
+		cfiles="$cfiles $f"
+		fi
+	done
+
+if test -n "$cfiles" ; then
+	Scripts/cstyle.py $cfiles
+	if test $? -ne 0 ; then
+		echo
+		echo "Commit aborted. Fix the above error before trying again."
+		exit 1
+		fi
+	fi
+
+#-------------------------------------------------------------------------------
+# Check the copyright notice of all files to be commited.
+
+user=`git config --global user.email`
+year=`date +"%Y"`
+
+missing_copyright_year=""
+if test $user = "erikd@mega-nerd.com" ; then
+	for f in $files ; do
+		if test `head -5 $f | grep -i copyright | grep -c -i $user` -gt 0 ; then
+			user_copyright=`grep -i copyright $f | grep $user | grep -c $year`
+			if test $user_copyright -lt 1 ; then
+				missing_copyright_year="$missing_copyright_year $f"
+				fi
+			fi
+		done
+	fi
+
+if test -n "$missing_copyright_year" ; then
+	echo "Missing current year in the copyright notice of the following files:"
+	for f in $missing_copyright_year ; do
+		echo "    $f"
+		done
+	echo "Commit aborted."
+	exit 1
+	fi
+
+exit 0