build: use mcs instead of gmcs
build: use mcs instead of gmcs

as gmcs not available in current release of mono

Signed-off-by: Alex J Lennon <9144733ce5024db3ef1cb59f3adc4521f5dd0f7a@dynamicdevices.co.uk>

Clancey/taglib-sharp,Clancey/taglib-sharp,archrival/taglib-sharp,archrival/taglib-sharp,Clancey/taglib-sharp,hwahrmann/taglib-sharp,hwahrmann/taglib-sharp,CamargoR/taglib-sharp,CamargoR/taglib-sharp,mono/taglib-sharp,punker76/taglib-sharp,punker76/taglib-sharp