CODEWITHSUNDEEP
c++11gccg++
SomethingSomething
SomethingSomething

Reputation: 12276

GCC/G++ : Enable -std=c++11 from environment variable

I have some OpenCV/C++ application which compiles with a CMake definitions file, in which I did not find a way to pass flags to the compiler.

I know that there are the flags C_INCLUDE_PATH CPLUS_INCLUDE_PATH, and all the rest of their friends...

But, is there an environment variable for definition of any other flags, in which I'd be able to define -std=c++11 ?

Upvotes: 1

Views: 1867

Answers (2)

mfolusiak
mfolusiak

Reputation: 151

If you're using CMake, equally easy and nicer solution will be to pass

-DCMAKE_CXX_STANDARD=11 -DCMAKE_CXX_STANDARD_REQUIRED=ON

to CMake.

Upvotes: 2

Stefano
Stefano

Reputation: 4031

The easiest but certainly not nicest solution if you want to force it by hand would be:

add_compile_options(-std=c++11)

However CMake should be able to pick the necessary standard for you. Have a look to this answer: How to detect c++11 support of a compiler with cmake

Upvotes: 1

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