2009/12/15 Lennart Sorensen <[email protected]>: > On Tue, Dec 15, 2009 at 05:16:05PM +0100, Niko Lau wrote: >> I want to use the libv4l2 for my arm platform with uclibc cross compiler. >> When I link a appl with that lib I get the following error: >> arm-linux-uclibc-gcc -Wall -O2 -g -I../libv4l2/include >> -L../libv4l2/lib -o capture capture.c -lv4l2 -lv4lconvert >> ../libv4l2/lib/libv4lconvert.so: undefined reference to `shm_open' >> collect2: ld returned 1 exit status >> make: *** [test] Fehler 1 >> >> The lib is built with the same compiler without any error. >> Can someone give me a hint what the problem is. Since it works with a >> glibc compiler i think the problem is the uclibc. > > The man page (for the glibc version) says you have to link with -lrt. > I don't see you doing that. Do you have to? Does uclibc have such > a thing and does it do shm_open? I guess it must or the header files > would have failed yoiur earlier compile already. > > -- > Len Sorensen >
The -lrt flag is set during libv4lconvert building. I can see shm_open in the include file (/sys/mman.h) so i think uclibc has shm_open. Niko _______________________________________________ uClibc mailing list [email protected] http://lists.busybox.net/mailman/listinfo/uclibc
