-std=c++11 missing

[oneptr]

I'm using an old compiler (gcc 4.9.2) which has C++11 support, but it needs to be enabled with the compiler flag -std=c++11. The CMakefile.txt does not use this compiler flag; it defaults to c++98, which leads to many compile errors.

1. Please add -std=c++11 compiler flag
2. check for compiler supported language level, and if it doesn't meet requirements, issue ONE simple error message, like C++11 or whatever not supported by installed compiler, instead of spitting out 10,000's of non-sense error messages.

[vacing]

try this

cmake ../ -DCMAKE_CXX_FLAGS="-std=c++11"

[derekmauro]

I believe this has been fixed at head.