Hello, I send you some informations concerning my problem (which is the subject of this mail): -when I enter ./configure in the folder of the sources of gtksourceview#, I obtain: checking for GTK_SHARP... configure: error: Package requirements (gnome-sharp-2.0 >= 1.9.3) were not met: No package 'gnome-sharp-2.0' found Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables GTK_SHARP_CFLAGS and GTK_SHARP_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. - so I went to /opt/local/lib/pkgconfig, and I found gnome-vfs-2.0.pc but not gnome-sharp-2.0.pc - I copied gnome-sharp-2.0.pc from the directory where I have unzipped the sources into /opt/local/lib/pkgconfig, and I saw that gtksourceview# said me he has found gnome-sharp( but there is an error of another file is not found, what is rather normal); the conclusion is that gtksourceview# attemps to find gnome-sharp-2.0.pc, but does not find it, this is gnome-sharp which is not properly installed - I downloaded the source of gnome-sharp from the site of go-mono.org, so I presume the version (2.16) is good - there must exist a way to compile better gnome-sharp (some options to enter?), but I haven't found it can you help me? lolveley.