[Rcpp-devel] RcppArmadillo installation issue

c s conradsand.arma at gmail.com
Thu Jul 12 05:37:42 CEST 2012

On Wed, Jul 11, 2012 at 5:03 AM, Vinh Nguyen <vinhdizzo at gmail.com> wrote:
>> That said, it very much looks like an issue with g++ 4.7.*. I actually made a
>> small change to make it work at my end (Debian testing, g++-4.7.1).
> Yes, g++ 4.7.* was used...

GCC versions 4.7.0 and 4.7.1 are full of bugs within the C++ compiler.
 I wouldn't trust GCC 4.7 until version 4.7.3.

There is a bazillion bug reports on the GCC bug mailing list, all
related to GCC 4.7.x:

Perhaps the amount of bugs being reported has a correlation with the
amount of crack smoked by GCC developers.  Following this line of
thought, perhaps the amount of crack being smoked is directly
proportional to the amount of memory loss, making the developers
forget the golden rules of development: "adding new features = adding
new tests" and "adding new features = test if new features break
existing code".

However, if we apply this perfectly logical correlation to its full
conclusion, it would indicate that other software "makers", such as
Microsuck, have industrial strength meth labs on premises, with MS
employees getting free crystal meth along with their corn flakes as
morning breakfast.  The horrible state of the Visual C++ compiler (as
well as other Microsuck software) makes GCC look like utmost
perfection, created by aliens that are 1000 years more advanced than

One known GCC bug directly relevant to us is:

I've made a workaround for this bug in Armadillo 3.2.4, at the
trade-off of losing a small amount of functionality.

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