John Owens <john_owens <at> yahoo.com> writes: > > Greetings, I'm puzzled about this build error. > > Basically the problem is that it's trying to link to a > dynamic library "libRblas.dylib" that is clearly in the > right place (/opt/local/lib/R/lib/libRblas.dylib) and whose > directory is explicitly specified with -L. (LD_LIBRARY_PATH > didn't help either.)
OK good news, I think I figured this out. Bad news, I need some help to continue to make progress. The MacPorts R distribution must be built with a newer gcc. It uses gcc 4.0.4 (the default is 4.0.1). On a MacPorts system, the new gcc is called gcc-dp-4.0. I believe the link problems were because of an incompatibility between R's gcc and the native gcc that I get when I python setup.py build. I am not sure how to say "use gcc-dp-4.0 instead of gcc". The best I've come up with is: CC=gcc-dp-4.0 python setup.py build which sort-of works. The problem is that gcc is called with the following command line from within the script: gcc-dp-4.0 -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd -fno-common -fno-common -dynamic -DNDEBUG -g -O3 -Wall -DWITH_NUMERIC -DRPY_SHNAME="_rpy2050" -DINIT_RPY=init_rpy2050 -UPRE_2_2 -I/opt/local/lib/R/include -Isrc -I/opt/local/Library/Frameworks/Python.framework/Versions/2.4/include/python2.4 -I/opt/local/include/python2.4 -c src/rpymodule2050.c -o build/temp.darwin-8.9.0-Power_Macintosh-2.4/src/rpymodule2050.o gcc-dp-4.0: unrecognized option '-no-cpp-precomp' cc1: error: unrecognized command line option "-Wno-long-double" error: command 'gcc-dp-4.0' failed with exit status 1 What I need to do is delete the two command-line options -Wno-long-double and -no-cpp-precomp. They are valid in default gcc 4.0.1 but not in new gcc-dp-4.0 (4.0.4). I don't know how to do this in the setup.py script. The other possible option was: python setup.py build --compiler=gcc-dp-4.0 which tells us: error: don't know how to compile C/C++ code on platform 'posix' with 'gcc-dp-4.0' compiler So: What I'd love to know is how I can change the default options passed to gcc to get rid of two options. The default options don't appear to be anywhere in setup.py, so I'm not sure from where they come, but I think this does solve the problem (or at least let me make more progress), so anyone who understands setup.py and the distutils magic, I'd appreciate help! Thanks! JDO ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ rpy-list mailing list rpy-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rpy-list
