https://ww8central.ww.uni-erlangen.de/ 2026-04-11T04:40:03+00:00 https://ww8central.ww.uni-erlangen.de/ https://ww8central.ww.uni-erlangen.de/_media/wiki/logo.png text/html 2016-10-19T07:55:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/tools/gcc/optimization?rev=1476863731&do=diff GCC Optimization Compiler Options To see all available (enabled) optimization flags for your CPU type (with your GCC version) you can use: gcc -c -Q -march=native -mtune=native --help=target or the extended version: gcc -v -Q -march=native --help=target text/html 2024-06-01T05:33:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/tools/gcc/parameters?rev=1717220038&do=diff Usefull parameters for GCC Colored output (4.9.1) -fdiagnostics-color=auto GCC 14 (to be released appx. April/May 2024 - Fedora 40) makes the following errors by default: -Werror=int-conversion -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=return-mismatch ('new' warning in GCC 14, split out from -Wreturn-type) -Werror=declaration-missing-parameter-type (new warning in GCC 14)