Yes, you're right, and it is correct for all the other errors with two numbers that I get. Interesting. Thanks, Mike. On Tue, 2009-07-07 at 14:02 +0300, Jay I. wrote: > i guess 23 is the last character position on the 4th line in Viewer.h. > not sure though > > regards, > jay > > > On Tue, 2009-07-07 at 11:46 +0100, Mike Reed wrote: > > Hi, > > pretty simple question but I can't find the answer anywhere in the GCC > > documentation or on the web/mailing lists. I am getting an error from > > the compiler like this: > > > > $ g++ -c -o Viewer.o Viewer.cpp > > In file included from Viewer.cpp:1: > > Viewer.h:4:23: error: gtkmm/box.h: No such file or directory > > > > I can see from the source that the #include occurs on line 4 of Viewer.h > > but what is the 23? I only seem to get this second number on "No such > > file or directory" messages. In the GCC documentation it only mentions > > filename and line number being given, no mention of a possible second > > number or what it is. > > > > Just curious. > > > > Thanks, > > Mike. > > >