Little puzzle for you: What belongs together?
Configurations: (A) current svn, --enable-pch (B) current svn, --disable-pch Compile times/size of build tree part frontend/qt4: (1) real 7m35s user 6m25s sys 0m23s 58.5 MB (2) real 6m12s user 5m12s sys 0m19s 19.9 MB Solution: (A)-(1), (B)-(2). This is gcc (GCC) 4.1.2. Possible conclusions: Precompiled headers are a waste of time and space. 22% increase on compile times, ~300% increase on disk space. Could somebody please try the same test with a different compiler? Andre'
