Sergio writes: > Hello opencv [1] build also failed around LTO Looking at the build logs: https://koji.fedoraproject.org/koji/taskinfo?taskID=48055082 For the build.log that ends with: lto1: error: '__builtin_altivec_vadub' requires the '-mcpu=power9' option lto1: fatal error: target specific builtin not available compilation terminated. The build uses a mix of compiler options. -mcpu=power8 -mtune=power8 and -mcpu=power9 -mtune=power9 and sometimes -mcpu=power8 ... -mcpu=power9 -mtune=power9 I suspect this works at the level of individual object (*.o) generation but this might cause problems when a mix of -mcpu=power8 and -mcpu=power9 objects are combined in LTO optimization. The compiler might get confused. _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx