forage@forage-VirtualBox:/media/sf_Projects/gtk-sharp3$ make install
Making install in sources
make[1]: Entering directory `/media/sf_Projects/gtk-sharp3/sources'
make[2]: Entering directory `/media/sf_Projects/gtk-sharp3/sources'
make[2]: Nothing to be done for `install-exec-am'.
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/media/sf_Projects/gtk-sharp3/sources'
make[1]: Leaving directory `/media/sf_Projects/gtk-sharp3/sources'
Making install in generator
make[1]: Entering directory `/media/sf_Projects/gtk-sharp3/generator'
make[2]: Entering directory `/media/sf_Projects/gtk-sharp3/generator'
 /bin/mkdir -p '/usr/bin'
 /usr/bin/install -c gapi3-fixup gapi3-codegen '/usr/bin'
/usr/bin/install: cannot create regular file ‘/usr/bin/gapi3-fixup’: Permission denied
/usr/bin/install: cannot create regular file ‘/usr/bin/gapi3-codegen’: Permission denied
make[2]: *** [install-binSCRIPTS] Error 1
make[2]: Leaving directory `/media/sf_Projects/gtk-sharp3/generator'
make[1]: *** [install-am] Error 2
make[1]: Leaving directory `/media/sf_Projects/gtk-sharp3/generator'
make: *** [install-recursive] Error 1