> Now I get: > gcc -I. -Ikernel/include -I/usr/local/include -Wall -O2 -c > prog/sensors/main.c -o prog/sensors/main.ro gcc -I. -Ikernel/include > -I/usr/local/include -Wall -O2 -c prog/sensors/chips.c -o > prog/sensors/chips.ro gcc -o prog/sensors/sensors prog/sensors/main.ro > prog/sensors/chips.ro -Llib -lsensors gcc -I. -Ikernel/include > -I/usr/local/include -Wall -O2 -c prog/dump/isadump.c -o > prog/dump/isadump.ro prog/dump/isadump.c: In function `main': > prog/dump/isadump.c:174: Warnung: implicit declaration of function > `outb' prog/dump/isadump.c:183: Warnung: implicit declaration of > function `inb' gcc -o prog/dump/isadump prog/dump/isadump.ro > prog/dump/isadump.ro(.text+0x284): In function `main': > : undefined reference to `outb' > prog/dump/isadump.ro(.text+0x290): In function `main': > : undefined reference to `inb' > prog/dump/isadump.ro(.text+0x308): In function `main': > : undefined reference to `outb' > prog/dump/isadump.ro(.text+0x318): In function `main': > : undefined reference to `outb' > prog/dump/isadump.ro(.text+0x32c): In function `main': > : undefined reference to `outb' > prog/dump/isadump.ro(.text+0x33c): In function `main': > : undefined reference to `outb' > collect2: ld returned 1 exit status > make: *** [prog/dump/isadump] Fehler 1 So we are back to the original problem (ticket #1291). Maybe you need an additional header and library to get inb and outb on PPC. Could you please run the following commands and report outputs? grep '^inb ' -r /usr/include/* grep '^outb ' -r /usr/include/* Gives /usr/include/sys/io.h for me, I would have expected /usr/include/asm/io.h for you, but maybe it's elsewhere. -- Jean Delvare http://www.ensicaen.ismra.fr/~delvare/