problems compiling gcc under Max OS X

[Dan Allen]

I too am having problems building an Intel gcc 4.3.1 on Mac OS X  
10.5.4 on a standard iMac.  There are many issues.

I grab the gmp-4.2.2 distribution, ./configure, make, and make install  
it to /usr/local.  Everything is great.

ISSUE #1:
I then grab the mpfr-2.3.1 distribution, ./configure it, and the ./ 
configure fails. It says that the ABIs do not match.  config.guess in  
the gmp build gives returns 'core2-apple-darwin9.4.0', while  
config.guess in the mpfr build returns 'i386-apple-darwin9.4.0'.   
Hmm.  Well, core2 is not the same as i386, but they are in some sense  
compatible.  How does one fix this?

ISSUE #2:
There are a lot of places in the configure scripts where you see

   rm: conftest.dSYM: is a directory

Is there an autoconf that fixes this?  rm needs to be rm -rf on Mac OS  
X.  (Is this because of a case-insensitive file system?)

ISSUE #3:
I really wish that these extra dependencies were not there.  I can  
build gcc 4.2.5 without any problems, but requiring gmp and mpfr in  
4.3+ with these hassles is a real pain.  Why can't these be integrated  
into gcc and put into gcclib so builds go smoother?

Thanks for listening.

Dan Allen