Dear List,
Iīve tried to compile a rtai-lxrt-example programm with my own makefile,
but linking failed:
make -k
gcc -I/usr/src/linux/include -I/opt/RTAI/rtai-1.5/include
-I/opt/RTAI/rtai-1.5/lrxt -O2 -o user_hrt user_hrt.c
/tmp/ccmYvcaC.o: In function `main':
/tmp/ccmYvcaC.o(.text+0x2ec): undefined reference to
`rt_usp_signal_handler'
/tmp/ccmYvcaC.o(.text+0x351): undefined reference to
`rt_make_hard_real_time'
/tmp/ccmYvcaC.o(.text+0x4d4): undefined reference to
`rt_make_soft_real_time'
/tmp/ccmYvcaC.o(.text+0x4d9): undefined reference to
`rt_make_hard_real_time'
/tmp/ccmYvcaC.o(.text+0x4de): undefined reference to
`rt_make_soft_real_time'
/tmp/ccmYvcaC.o(.text+0x4e3): undefined reference to
`rt_make_hard_real_time'
/tmp/ccmYvcaC.o(.text+0x622): undefined reference to
`rt_make_soft_real_time'
collect2: ld returned 1 exit status
make: *** [user_hrt] Error 1
Compilation exited abnormally with code 2 at Fri Oct 27 14:39:20
I think it must be easy, but I havenīt found the trick...
Here is the makefile:
all = user_hrt
RTAI_HOME = /opt/RTAI/rtai-1.5
LINUX_HOME = /usr/src/linux
INCLUDE = -I$(LINUX_HOME)/include -I$(RTAI_HOME)/include
-I$(RTAI_HOME)/lrxt
user_hrt: user_hrt.c
gcc $(INCLUDE) -O2 -o $@ $<
What went wrong? Many thanks,
Sven
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