Incompatible library version

[radfordneal]

Incompatible library version

[radfordneal]

Hi. A few questions...

Could you say which version of macOS you're using? High Sierra?

How did you get gcc-4.9? From Homebrew, or macports? Did you get it after your most recent macOS system upgrade?

When was the error message produced? The config.log file seems to indicate that configuration completed without error. Did the problem arise with "make" (and if so, at what point), or only after it had finished without apparent error and you tried to use pqR?

The reference to R/3.4 in the error message indicates that perhaps there is some confusion between pqR and an installed version of R Core R-3.4.x. Are you running pqR from its build directory (just running bin/R in it) or did you try to install it (with "make install")?

OpenMP should work with gcc if installed with the --without-multilib option, but I've recently discovered that the most recent release (gcc-7.2) on Homebrew no longer supports this option. It's needed because of a widespread problem with gcc's OpenMP in which the omp.h file used ends up being appropriate only for 32-bit systems even when installed on a 64-bit system. In pqR, I have a kludge to get around this on Windows, but hadn't thought it necessary for macOS. In the next version, I'll implement a generalized kludge always, since it seems the problem keeps showing up on more systems...

[aseemmahajan]

Thanks for the response. I'm using High Sierra, and already seem to have had gcc-4.9 installed (I think it was associated with some earlier version of R). Based on a few links that discussed this problem, I'd also tried to get gcc via macports and gnu gcc using an SVN server but those ran into a number of different problems. When I installed gcc and cmake and then tried to install pqr, I did indeed run into the 32 bit problem you referenced.

I haven't yet successfully been able to start pqR yet, but the error that I posted came up when I ran make install in the build directory after configuring it, which seemed to run smoothly. Glad to try something else if you suggest. Thanks.

[radfordneal]

Could you try just running bin/R (from a terminal window) in the build directory you used for pqR? (That is, try not using the version installed with "make install", but the version that's just in the build directory.)

As I mentioned, it seems like there may be some problem with mixing up of pqR and R-3.4.x. Do you think you have R-3.4.x installed, and if so does it work?