On Sat, Jan 15, 2005 at 01:40:03PM +0000, Yann Le Doaré wrote: > Hi evrybody ! > > I tried to compile the "cxacru" DSL driver for linux, but when linking > tools i had those errors : > > gcc -O2 -Wstrict-prototypes -fomit-frame-pointer -pipe -march=i686 -Wall > -DLINUX -I../include -I/usr/linuxconsole/core/include -lusb -lpthread > -L/usr/linuxconsole/core/lib cxload.c -o cxload > /tmp/cc31iLZF.o(.text+0x17a): In function `transfer_ctrl_msg': > : référence indéfinie vers « usb_control_msg » > /tmp/cc31iLZF.o(.text+0x185): In function `transfer_ctrl_msg': > : référence indéfinie vers « usb_strerror » > /tmp/cc31iLZF.o(.text+0x220): In function `transfer_ctrl_msg': > : référence indéfinie vers « usb_clear_halt » > /tmp/cc31iLZF.o(.text+0x234): In function `transfer_ctrl_msg': > : référence indéfinie vers « usb_clear_halt » > /tmp/cc31iLZF.o(.text+0x27c): In function `read_bulk': > : référence indéfinie vers « usb_bulk_read » > > ..... > > but when I move "cxload.c -o cxload" from the end to the beginning of > command, all is OK > > gcc cxload.c -o cxload -O2 -Wstrict-prototypes -fomit-frame-pointer > -pipe -march=i686 -Wall -DLINUX -I../include > -I/usr/linuxconsole/core/include -lusb -lpthread > -L/usr/linuxconsole/core/lib > > > Do you think it is a GCC bug ? No, not at all since this is a linker issue. But it is no bug whatsoever. This is expected to work like this. -- Claudio