Hi, I will appreciate your help - I am trying to build/install R (3.0.2, and same with 3.0.1) from source on CentOS 5.9. After running './configure --prefix=/my/dir, and issuing 'make', I get an error that "package 'compiler' was built before R 3.0.0: please re-install it", and the build fails: make[3]: Leaving directory `/home/gennady/Programs/R-3.0.1/src/library/tools' make[3]: Entering directory `/home/gennady/Programs/R-3.0.1/src/library/compiler' building package 'compiler' mkdir -p -- ../../../library/compiler make[4]: Entering directory `/home/gennady/Programs/R-3.0.1/src/library/compiler' mkdir -p -- ../../../library/compiler/R make[4]: Leaving directory `/home/gennady/Programs/R-3.0.1/src/library/compiler' make[4]: Entering directory `/home/gennady/Programs/R-3.0.1/src/library/compiler' byte-compiling package 'compiler' Error: package 'compiler' was built before R 3.0.0: please re-install it Execution halted make[4]: *** [../../../library/compiler/R/compiler.rdb] Error 1 make[4]: Leaving directory `/home/gennady/Programs/R-3.0.1/src/library/compiler' make[3]: *** [all] Error 2 make[3]: Leaving directory `/home/gennady/Programs/R-3.0.1/src/library/compiler' make[2]: *** [R] Error 1 make[2]: Leaving directory `/home/gennady/Programs/R-3.0.1/src/library' make[1]: *** [R] Error 1 make[1]: Leaving directory `/home/gennady/Programs/R-3.0.1/src' make: *** [R] Error 1 I've looked for this or similar errors but it seems people describe it only when they install some packages from within R (or when R is already fully functional). In my case, I am trying to build R itself, and 'compiler' is from the base package. I've tried to change creation dates of some files (with touch) but nothing seems to help. Thanks in advance, -Gennady [[alternative HTML version deleted]]