https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92484
franz <franz.flasch at gmx dot at> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |franz.flasch at gmx dot at --- Comment #4 from franz <franz.flasch at gmx dot at> --- It seems this issue only occurs if the host machine and the target machine are identical, as it does not occur when crosscompilers are built. E.g. when building a crosscompiler for arm isl builds just fine. I checked the config.status and it seems that the c++11 compiler flag is not being set in case of a crosscompiler build: CXX variable for arm crosscompiler build in config.log: CXX='g++' CXX variable for x86_64 native compiler build in config.log: CXX='g++ -std=gnu++98 -std=c++11' Is there any way of telling the buildprocess to not use those c++11 compiler flag for isl?