[Bioc-devel] package c++ optimization flag

[Håkon Tjeldnes]

When I put this line in makevars:


PKG_CXXFLAGS = -O3


This is the output of the cpp precompiler:

 -O3 -fpic  -g -O2


I read the cpp doc, and it states:

"If you use multiple -O options, with or without level numbers, the last such option is the one that is effective."

Since, system wide R optimization -O2 always comes last, how can I make my package overwrite the system wide optimization ?
And should I do this at all, since debugging could get more difficult ?

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