Cannot install RPostgreSQL from source but I have gcc

On Nov 25, 2011, at 2:52 AM, christiaan pauw wrote:

Hi Everybody


Im on Mac OS X 10.6.6


$ sw_vers
ProductName: Mac OS X
ProductVersion: 10.6.6
BuildVersion: 10J3210


I am trying to install the latest version of JavaGD from source using the
GUI Package & Data > Package Installer >CRAN (Sources) but get the
following error.

You'll need to install Xcode (see the Mac FAQ).

trying URL '
http://cran.za.r-project.org/src/contrib/RPostgreSQL_0.2-1.tar.gz'

Content type 'application/x-gzip' length 428050 bytes (418 Kb)

opened URL

==================================================

downloaded 418 Kb


* installing *source* package ?RPostgreSQL? ...

** package ?RPostgreSQL? successfully unpacked and MD5 sums checked

checking for gcc... no

checking for cc... no

checking for cl.exe... no

configure: error: no acceptable C compiler found in $PATH

See `config.log' for more details.

ERROR: configuration failed for package ?RPostgreSQL?

* removing
?/Library/Frameworks/R.framework/Versions/2.14/Resources/library/RPostgreSQL?


The message says "checking for gcc... no" but I have  gcc installed:
(from terminal)
$ which gcc
/Developer/usr/bin/gcc

It means you didn't install Xcode unix system tools. In that case 
you have to make sure they are on the PATH in the shell that you are 
using R CMD INSTALL on (again, see the FAQ)

BTW: is there any reason why you're not using the binaries? JavaGD is available as binary and PostgreSQL is not a dependency thereof ...

Cheers,
Simon

How do I tell R where gcc is?

Can anyone guide me on how to resolve this. sessionInfo below

thanks in advance
Christiaan

sessionInfo()

R version 2.14.0 (2011-10-31)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] tools_2.14.0

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