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[...] checking for C compiler default output file name... configure: error: C compiler cannot create executables
Reason for the problem (see config.log):
[...] /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.1.3/libgcc.a when searching for -lgcc /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.1.3/libgcc.a when searching for -lgcc /usr/bin/ld: cannot find -lgcc
Workaround: 'au; agi gcc-multilib' or just continue execution of grml-terminalserver if you don't need the “grub-PXE-bootmethod” at all.