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From: David Abrahams (dave_at_[hidden])
Date: 2008-08-21 21:04:47

attached mail follows:


> According to, cflags affects both the C and C++
> compilers, while cxxflags affects only the C++ compiler; I use cxxflags as a
> matter of habit, but in the case of -arch, I suppose cflags would be more
> appropriate (although I'm not aware of any C code inside of Boost anyway).

Interesting, this caught me by surprise since I thought that cflags was only for C, cxxflags for C++ and compileflags for both.
It is documented that way at at least.
A small testing revealed that appears to be correct under my environment.
cflags affected both C and C++ and compileflags was rejected as an unknown feature.

The environment was as follows:
Boost.Build V2 (Milestone 12)
Boost.Jam 03.1.16
gcc 4.2.2

What would be the correct description of these features?

I appreciate all your input.


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Dave Abrahams
BoostPro Computing

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