Building QT On CentOS 5
I am building QT 4.8.6 on CentOS 5 and it is failing on building the webkit module with __sync_add_and_fetch_4 not being defined. My build is for Embedded Linux, which allows me to use the framebuffer.
Posts report this error when trying to cross-compile for ARM, but I am building for X86. Several posts also indicate that this is due to the old GCC used by CentOS 5.
Does anyone have any suggestions?
Thanks,
One thought on - Building QT On CentOS 5
I believe that gcc on CentOS 5 builds against i386 by default. i386 doesn’t have those instructions, so if you built against i686 (or a newer CPU like that), then it should fix the problem.
This stackoverflow has more info:
http://stackoverflow.com/questions/130740/link-error-when-compiling-gcc-atomic-operation-in-32-bit-mode