I wrote: > http://www.4toc.com/fb/ > FBtoC 1.1.9 changes > ------------------- > 4. The build system determines which pieces of a large program need > to be compiled, and compiles only those pieces. Recent enhancements in the build system seem, to my surprise, to have caused only one bug thus far. I was expecting to get many bug reports, and to fend off questions about the unfamiliar files that are now created in build_temp. The bug affects the rarely used Headers file Tlbx glu.incl. In consequence, the example FB_5_1_4_Examples > Graphics > OpenGL > SimpleBlocks project cannot be built. The bug is fixed for the next release. Robert P.