libpurple build configure for external usage

building nullclient outside of libpurple

gcc `pkg-config --libs glib-2.0 gobject-2.0 libxml-2.0` `pkg-config --cflags glib-2.0 libxml-2.0 nss` -I/usr/local/include/libpurple/ -DPURPLE_DISABLE_DEPRECATED nullclient.c -lpurple -lresolv -o nullclient

notes.txt

Static:
./configure --disable-dependency-tracking --disable-gtkui --disable-consoleui --disable-perl \
--enable-debug --enable-static --disable-shared \
--with-static-prpls=bonjour,gg,irc,jabber,msn,myspace,novell,oscar,sametime,simple,yahoo,zephyr \
--disable-plugins --disable-avahi --disable-dbus --enable-gnutls=no --enable-nss=yes \
--enable-vv=no --disable-gstreamer --disable-idn --disable-screensaver --disable-meanwhile \
--without-x --disable-nls

Shared:
./configure --disable-dependency-tracking --disable-gtkui --disable-consoleui --disable-perl \
--enable-debug --enable-shared \
--enable-plugins --disable-avahi --disable-dbus --enable-gnutls=no --enable-nss=yes \
--enable-vv=no --disable-gstreamer --disable-idn --disable-screensaver --disable-meanwhile \
--without-x --disable-nls

Need:
	- libglib2.0-dev
	- libxml2-dev
	- libnss3-dev