https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92121
Bug ID: 92121 Summary: Error using GCC 4.9.4 -- arch/x86/Makefile:166: *** CONFIG_RETPOLINE=y, Product: gcc Version: 4.9.4 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other Assignee: unassigned at gcc dot gnu.org Reporter: dhgopal at gmail dot com Target Milestone: --- We are setting up new centos build server and while configuring the gcc and when we tried to compile the project code, we are getting the below error. we did compile the code in Centos 3.10.0-693.17.1.el7.x86_64 using the gcc 4.9.4, where - we installed gcc from the gcc 4.9.4 source code 1) Error: scripts/kconfig/conf --silentoldconfig Kconfig make[2]: Leaving directory `****************************************' arch/x86/Makefile:166: *** CONFIG_RETPOLINE=y, but not supported by the compiler. Compiler update recommended.. Stop. make[1]: *** [.config] Error 2 make[1]: Leaving directory `****************************************' make: *** [kernel.rpm] Error 2 $ Note: ** are replaced with the directory path 2) we are using gcc 4.9.4 as shown below $ gcc --version gcc (GCC) 4.9.4 Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $