emerging ghdl (to check out gnu VHDL simulation) it failed to compile with: /bin/sh: line 1: gnatmake: command not found HOWEVER this is provided by the gnat-gcc package Fluid ~ # equery belongs /usr/x86_64-pc-linux-gnu/gnat-gcc-bin/4.2/gnatmake [ Searching for file(s) /usr/x86_64-pc-linux-gnu/gnat-gcc-bin/4.2/gnatmake in *... ] dev-lang/gnat-gcc-4.2.2 (/usr/x86_64-pc-linux-gnu/gnat-gcc-bin/4.2/gnatmake) eselect gnat-gcc list /usr/x86_64-pc-linux-gnu/gnat-gcc-bin/4.2/gnatmake [ Searching for file(s) /usr/x86_64-pc-linux-gnu/gnat-gcc-bin/4.2/gnatmake in *... ] dev-lang/gnat-gcc-4.2.2 (/usr/x86_64-pc-linux-gnu/gnat-gcc-bin/4.2/gnatmake) eselect gnat-gcc list issuing env-update allows ghdl to get further in the install ps on an aside this does *NOT* build for amd64 /usr/x86_64-pc-linux-gnu/bin/ld: skipping incompatible /usr/lib/../lib/libc.so when searching for -lc /usr/x86_64-pc-linux-gnu/bin/ld: skipping incompatible /usr/lib/../lib/libc.a when searching for -lc /usr/x86_64-pc-linux-gnu/bin/ld: i386:x86-64 architecture of input file `/usr/lib64/gcc/x86_64-pc-linux-gnu/../../../lib/crti.o' is incompatible with i386 output /usr/x86_64-pc-linux-gnu/bin/ld: i386:x86-64 architecture of input file `/usr/lib64/gcc/x86_64-pc-linux-gnu/../../../lib/crtn.o' is incompatible with i386 output for this to work for amd64 it may need to be forced to use /lib32 && /usr/lib32 but thats an aside Reproducible: Always