Installation of gcc-toolchain did not help. $ guix package -I |grep gcc gcc-toolchain    8.2.0    out    /gnu/store/xwk99qi92pm3zqd95mvjx4mkdmg8plpk-gcc-toolchain-8.2.0 $ gcc c c: file not recognized: file format not recognized collect2: error: ld returned 1 exit status $ cat c #include #include int main(void) {     struct stat stats;     if (!stat("/", &stats))     {         printf("%u\n", stats.st_blksize);     } } Feb 9, 2019, 2:35 PM by rekado@elephly.net : > > znavko@tutanota.com > writes: > >> Hi! I compile this >> https://stackoverflow.com/questions/6161823/dd-how-to-calculate-optimal-blocksize >> <>> https://stackoverflow.com/questions/6161823/dd-how-to-calculate-optimal-blocksize >> > >> >> and get this: >> >> $ gcc c.c >> collect2: fatal error: cannot find 'ld' >> compilation terminated. >> >> $ whereis ld >> ld: >> >> $ gcc --version >> gcc (GCC) 8.2.0 >> >> How to solve this? >> > > I’m assuming that you installed the “gcc” package. Don’t do that. > Install “gcc-toolchain” instead. > > guix package -r gcc -i gcc-toolchain > > -- > Ricardo >