1. To build on Linux PC/RPi
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libtoolize --force
aclocal
autoheader
automake --force-missing --add-missing
autoconf
autoreconf --install

Prerequisities to build using Option 2.1/2.2 listed below
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Copy a2dp-codec.h from http://www.kernel.org/pub/linux/bluetooth/bluez-5.54.tar.xz to your PREFIX/include
For example: If you PREFIX is /xyz/abc/local, then
$$ cd /xyz/abc/local
$$ mkdir -p include/bluetooth/audio

copy a2dp-codecs.h  to the created folder structure
/xyz/abc/local/include/bluetooth/audio/a2dp-codecs.h

In addition to the above Ubuntu 20.04, we will need bluetooth.h
- $$ sudo apt-get install libbluetooth-dev
- In addition newer version of gcc is present on Ubuntu 20.04, so remove -Werror from Makefile.am, if needed


2.1 To configure and build use DBus with Bluez4
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$$ CPPFLAGS=-I/xyz/abc/local/include ./configure --prefix=/xyz/abc/local/ --enable-btr-ifce=bluez4
$$ make V=1
$$ make install

2.2 To configure and use DBus with Bluez5
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$$ CPPFLAGS=-I/xyz/abc/local/include ./configure --prefix=/xyz/abc/local/ --enable-btr-ifce=bluez5
$$ make V=1
$$ make install

2.3 To configure and use GDBus with Bluez5
-------------------------------------------
$$ PATH=/xyz/abc/local/bin:$PATH PKG_CONFIG_PATH=/xyz/abc/local/lib/x86_64-linux-gnu/pkgconfig CPPFLAGS=-I/xyz/abc/local/include ./configure --prefix=/xyz/abc/local/ --enable-btr-ifce=gdbus_bluez5
$$ make V=1
$$ make install

2.4 To configure and use DBus with Bluez5 - Le MODE
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$$ CPPFLAGS=-I/xyz/abc/local/include ./configure --prefix=/xyz/abc/local/ --enable-btr-ifce=bluez5 --enable-leonly=yes
$$ make V=1
$$ make install

2.5 To configure and use GDBus with Bluez5 - Le Mode only
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$$ PATH=/xyz/abc/local/bin:$PATH PKG_CONFIG_PATH=/xyz/abc/local/lib/x86_64-linux-gnu/pkgconfig CPPFLAGS=-I/xyz/abc/local/include ./configure --prefix=/home/user/Comcast/PC/local/ --enable-btr-ifce=gdbus_bluez5 --enable-leonly=yes
$$ make V=1
$$ make install


3. To clean and then remove all configurations
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$$ make clean
$$ make distclean