After upgrading gcc and cpp from 4.4 to 4.6, cpp stopped working on Pentium MMX. Currently, I have xrdb dying unless invoked with -cpp /usr/bin/i486-linux-gnu-cpp-4.4 and when compiling R packages, this is what I got: gcc -I/usr/share/R/include -I"/usr/lib/R/library/Matrix/include" -I"/usr/lib/R/library/stats/include" -fpic -std=gnu99 -O3 -pipe -g -c init.c -o init.o gcc: internal compiler error: Illegal instruction (program cc1) Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-4.6/README.Bugs> for instructions. make: *** [init.o] Error 4 ERROR: compilation failed for package ‘lme4’ For the time being, I would like to use gcc-4.4 instead. How do you set 4.4 as the default version?
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