Hello guys,

I'm trying to run bitbake to get a linux image on an altera Cyclone 5 devboard(SoCrates). The end goal is to get a linux image that has the OpenCV library installed. I'm using the altera version of the yocto project.

Currently everything is running fairly well on ubuntu 12.04.
When I try to run this bitbake process on CentOS 7, I get the following error:

Error: argument to 'sizeof' in 'snprintf' call is the same expression as the destination; did you mean to provide an explicit length? [-Werror=sizeof-pointer-memaccess]

cc1: all warnings being treated as errors

After some googling here and there, I kind of found the 'bug'.(new gcc has this new flag that older versions didn't have which causes a warning and an error with -wall).

So now I'm looking for the place where flags are passed to the gcc compiler:
I tried doing this in the bitbake.conf file in the meta -layer; TOOLCHAIN_OPTIONS, BUILD_CFLAGS and TARGET_CFLAGS are now empty.
In the manual they mention these flags are being sent to the compiler.

I also checked out the elfutils and gcc folders in yocto/meta/devtools/, but couldn't find anything relevant there (I used find/grep and the GUI, searching for the flags mentioned)


Changing the flags in the bitbake.conf file didn't help; do you guys happen to have any idea where the compiler flags are being set when bitbake executes the do_compile task for elfutils?

Thank you in advance.

cheers!