Hi! Andrew Haley wrote: > See `config.log' for more details. Good point. I'll try to really *read* error messages next time.. However, according to the log, two libraries were in fact missing: libgmp and libmpfr. This seems a bit odd to me since GCC 4.2.0 compiled just fine on OSX where these libs are definitely not installed. After installing these libraries, the build still fails with the same error and there are no errors or warnings in the config.log. The last entry in the config.log says: configure:7345: gcc -c -g -O2 -fkeep-inline-functions conftest.c 1>&5 So I guess, this is the command which failed to produce a runnable binary. I wanted to take a look at this conftest.c, but there is no such file in the source tree. Hints? Best regards, Alexander Wieder