[R-SIG-Mac] odd problem building gmp from source

[Carl Witthoft]

Hi,
I chose to make a minor edit to the R-source  matrixz.R in the gmp 
package (not to be confused with the GNU gmp library which it calls).

On my Intel iMac at work, running OSX 10.6.4,  it compiled just fine.

for reference, that Mac has:
%gcc -version
i686-apple-darwin10-gcc-4.2.1: no input files

and I honestly forget which version of gmplib I installed.

So, I took the R-gmp source home, where I have an Intel iMac w/ 10.5.8, 
and I get the following foulup:

TheiMac:~/downloads/gmpmod:cgw-507$ ./configure
creating cache ./config.cache
checking for __gmpz_ui_sub in -lgmp... no
configure: error: GNU MP not found, or not 4.1.4 or up, see 
http://swox.com.gmp

I've tried installing both GNU gmp 4.3.2 and 5.0.1, same problem.  And 
the libraries are in /usr/local/lib, just as they are on my work iMac.

I thought it might be the compiler, so I checked:

TheiMac:~/downloads/gmpmod:cgw-508$ gcc -version
i686-apple-darwin9-gcc-4.2.1: no input files


Any ideas what I've got set up wrong? Let me know what other system or 
app diagnostics I can supply.

thanks
Carl

(I did finagle an ugly workaround, by bringing home a copy of the 
installed R-gmp package.  I had to go to the Library/Frameworks/... 
/libs/i386 directory and swap in the original gmp.so  file (from the 
CRAN package) to get things mostly working))