changing compiler library standards on ubuntu

Question

I am compiling one code repository which has a makefile,

make INSTALL_PREFIX=/usr/local install

and I get the following error:

This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.

How can I enable ISO C++ 2011 standard?

Thanks,

actually, I am using GNU make. I use this command: make INSTALL_PREFIX=/usr/local install — yusuf
– yusuf, Commented Aug 11, 2016 at 11:54

lostbard · Accepted Answer · 2016-08-11 11:54:49Z

1

You don't give any details on the code repository, does it use just a standard makefile, autotools, cmake ?

You may be able to just do a export CPPFLAGS="-std=c++11" prior to building building the code.

answered Aug 11, 2016 at 11:54

lostbard

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8 Comments

yusuf Over a year ago

It uses a standard makefile

yusuf Over a year ago

I have used your suggestion, but still, I get the same error. :/

lostbard Over a year ago

looking at the repo, in graehl/graehl.mk, -std=c++11 is already set in ARCH_FLAGS, so should be used when compiling - what is the actual error is shows and where within the make procress?

lostbard Over a year ago

yep - isn't using the std option - it is the master branch from git? In graeh;/graehl.mk, is there a ARCH_FLAGS= setting ?

lostbard Over a year ago

it cant find libz - maybe that you don't have the libz devel files installed, or they are in a place it is currently not looking for them at. the command 'locate libz' may help see if it had them installed somewhere else

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