check that ccache's cache size is reasoably large enough
check that ccache's cache size is reasoably large enough

if < 1 GB do not auto-enable ccache
if < 5 GB warn about debug/symbol build

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core