You receive this bug because this package does not respect my system's CC ( x86_64-pc-linux-gnu-gcc - /usr/bin/x86_64-pc-linux-gnu-gcc ) and calls directly gcc -/usr/bin/gcc The possible solutions to fix this issue are: 1)Fix the buildsystem, if you can 2)inherit toolchain-funcs and use tc-export CC 3)inherit toolchain-funcs and use emake CC="$(tc-getCC)" gcc -march=native -O2 -g0 -I/usr/X11R6/include/X11 -c docklib.c gcc -march=native -O2 -g0 -I/usr/X11R6/include/X11 -c io-mount.c gcc -march=native -O2 -g0 -I/usr/X11R6/include/X11 docklib.o io-mount.o monto.c -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -o monto -L/usr/X11R6/lib -lXpm -lXext -lX11
Fixed in -r1!