Graham wrote:
Incredibuild (xoreax) and other parallel compilation systems have problems with pragma once
Thanks, Graham! (We're using IncrediBuild very much, at LKEB.) Now I see, it's at their FAQ: "When a source file includes one or more header files that are also included by the precompiled header and use the '#pragma once' directive, these header files may be #included more than once despite the #pragma once directive" http://xoreax.com/support_faq.htm#q122 Bo Persson wrote:
The #pragma once depends on the compiler being able to correctly parse the include paths for all possibly attached file systems. If it fails, it might include the same file twice from seemingly different paths.
I guess that's what typically might go wrong when using IncrediBuild, or other parallel compilation systems. Kind regards, Niels -- Niels Dekker http://www.xs4all.nl/~nd/dekkerware Scientific programmer at LKEB, Leiden University Medical Center