Following the instruction in R website and downloading gcc and g77, I am trying to configure and build R in my Mac laptop, but got some error message that I do not know how to resolve. Do any of you know how to solve this problem? After type ./configure, I got the following message. R is now configured for powerpc-apple-darwin8.3.0 Source directory: . Installation directory: /Library/Frameworks C compiler: gcc -g -O2 C++ compiler: g++ -g -O2 Fortran compiler: gfortran -g -O2 Interfaces supported: X11, aqua, tcltk External libraries: readline, BLAS(generic), LAPACK(in blas) Additional capabilities: iconv, MBCS, NLS Options enabled: framework, R profiling Recommended packages: yes But after typing "make", I got the following error message. make[1]: Nothing to be done for `R'. make[1]: Nothing to be done for `R'. make[2]: Nothing to be done for `R'. creating src/scripts/R.fe config.status: creating src/include/config.h config.status: src/include/config.h is unchanged Rmath.h is unchanged make[3]: Nothing to be done for `R'. make[4]: `libbz2.a' is up to date. make[4]: `libpcre.a' is up to date. make[4]: `libz.a' is up to date. make[3]: Nothing to be done for `R'. make[3]: `stamp-lo' is up to date. make[3]: `stamp-lo' is up to date. make[3]: `stamp-lo' is up to date. /Users/fang-yichiou/tmp/R-2.2.0/lib/libR.dylib is unchanged /Users/fang-yichiou/tmp/R-2.2.0/bin/exec/R is unchanged make[4]: `R_X11.so' is up to date. make[4]: `internet.so' is up to date. make[4]: `lapack.so' is up to date. make[4]: `vfonts.so' is up to date. building system startup profile building package 'base' all.R is unchanged building package 'tools' all.R is unchanged make[5]: `Makedeps' is up to date. ../../../../library/tools/libs/tools.so is unchanged building package 'utils' all.R is unchanged building package 'grDevices' all.R is unchanged ../../../library/grDevices/R/grDevices is unchanged make[5]: `Makedeps' is up to date. ../../../../library/grDevices/libs/grDevices.so is unchanged Error in solve.default(rgb) : lapack routines cannot be loaded In addition: Warning message: unable to load shared library '/Users/fang-yichiou/tmp/R-2.2.0/ modules/lapack.so': dlopen(/Users/fang-yichiou/tmp/R-2.2.0/modules/lapack.so, 6): Symbol not found: _rcblas_zdotc_sub__ Referenced from: /Users/fang-yichiou/tmp/R-2.2.0/modules/lapack.so Expected in: flat namespace Error: unable to load R code in package 'grDevices' Execution halted make[3]: *** [all] Error 1 make[2]: *** [R] Error 1 make[1]: *** [R] Error 1 make: *** [R] Error 1 Thanks for your advice in advance. Fang-Yi