[R-SIG-Mac] Building 64-bit R on Leopard (Mac Pro): what worked for me...

[Todd A. Johnson]

I have spent the last few days trying to get R 2.7.0 compiled (with the
R.app functioning) as x86_64 under Leopard on a Mac Pro, so after having
success, I thought that I would share what worked for me. YMMV

Please let me know about inaccuracies or compilation flags that might be
better for performance.

It was previously mentioned on the list that we need to pass the
architecture flags (x86_64, ppc, i386, or ppc64) to each of the compilers.
Unfortunately, the FAQ, web-sites, and e-mails that give compiler flags only
explicitly set CC, CXX, F77, and FC, but leave out the Objective-C compiler
(OBJC), which appears to now be needed for R.app support, so

THE SHORT VERSION OF THIS EMAIL:
(as a supplement to R for Max OS X FAQ 2.5)

1)  You need Xcode 3.0 and quad-architecture gfortran-4.2.1
2)  Download the latest R-devel source(2.7.0) from
ftp://ftp.stat.math.ethz.ch/Software/R/
3) configure and build for ppc, i386, and x86_64 archs as in FAQ 2.5 but add
OBJC to the flags (example: OBJC="gcc -arch x86_64")
4)  Do FAQ 2.4 to build R.app


THE LONG VERSION:

First steps:

1) Install Xcode 3.0 (http://developer.apple.com or an optional install on
your Leopard DVD) and the quad architecture gfortran-4.2.1.dmg
(http://r.research.att.com/tools)

2) Download the most recent R-devel source snapshot (2007-11-11 worked for
me) from:  ftp://ftp.stat.math.ethz.ch/Software/R/

Comments on building R:
1)  If you just want command line R, you don't need a universal framework,
so can install using just the configure flags for x86_64  below, but remove
the r_arch=x86_64 or it won't run.

2)  As mentioned on CRAN's R Mac OS X FAQ, to build R.app in Xcode requires
a universal build of R.  However, R for ppc64 won't build on a Mac Pro, so
we need to build ppc, i386, and x86_64 architectures to be able to build
R.app.

Here are Terminal commands starting from your home directory.  You can
configure and make each architecture in three different Terminal windows if
you want to get done faster, but to have x86_64 be your active architecture,
it seems that you should "sudo make install" x86_64 last (R-Mac FAQ 2.5).
This last point might not be necessary now, but probably won't hurt.

Assuming you have now downloaded R-devel_2007-11-11.tar.gz and placed it in
a folder /Users/YourUserName/sources
______________________________________________
cd
cd sources
tar xfz R-devel_2007-11-11.tar.gz
mv R-devel R-devel_ppc
tar -xfz R-devel_2007-11-11.tar.gz
mv R-devel R-devel_i386
tar -xfz R-devel_2007-11-11.tar.gz
mv R-devel R-devel_x86_64

cd R-devel_ppc
./configure \
CC='gcc -arch ppc' \
CXX='g++ -arch ppc' \
OBJC='gcc -arch ppc' \
F77='gfortran -arch ppc' \
FC='gfortran -arch ppc' \
--with-blas='-framework vecLib' --with-lapac \
r_arch=ppc
make
sudo make install

cd ../R-devel_i386
./configure \
CC='gcc -arch i386' \
CXX='g++ -arch i386' \
OBJC='gcc -arch i386' \
F77='gfortran -arch i386' \
FC='gfortran -arch i386' \
--with-blas='-framework vecLib' --with-lapac \
r_arch=i386
make
sudo make install

cd ../R-devel_x86_64
./configure \
CC='gcc -arch x86_64' \
CXX='g++ -arch x86_64' \
OBJC='gcc -arch x86_64' \
F77='gfortran -arch x86_64' \
FC='gfortran -arch x86_64' \
--with-blas='-framework vecLib' --with-lapac \
r_arch=x86_64
make
sudo make install
_______________________________________


Building R.app

1)  Make sure R works from the Terminal.

2)  After getting universal R installed as above, then we have to download
the Mac-GUI and build it.
__________
cd
cd sources
svn co https://svn.r-project.org/R-packages/trunk/Mac-GUI
_________

1)  Start Xcode.
2)  Go to File:Open and open the R.xcodeproj in the Mac-GUI folder that you
just downloaded from SVN (i.e. /Users/YourUserName/sources/Mac-GUI).
3)  Make sure the pulldown menus at the top have Active Target=R, Active
Build Configuration=Deployment.
4) Click the "Build" button at the top.  After it's done, your should see
"Build succeeded" in the bottom left corner.
5)  R.app is built in: Mac-GUI/build/Deployment/R.app
Move it wherever you want i.e /Applications


I hope that this is useful to somebody.


Best wishes,


Todd


-- 
Todd A. Johnson
Research Associate, Laboratory for Medical Informatics
SNP Research Center,RIKEN
1-7-22Suehiro,Tsurumi-ku,Yokohama
Kanagawa 230-0045,Japan
Work phone:  (045)-622-0862
Cellphone: 090-5309-5867

E-mail: tjohnson at src.riken.jp