getting ‘nullptr’ was not declared in this scope when building on RHEL6

[drewfish]

In my environment (admittedly a weird corporate environment) I'm getting a ‘nullptr’ was not declared in this scope error in src/binding.cpp:173 of [email protected].

I think this might be because of the -std=c++0x in...
https:/sass/node-sass/blob/v2.1.1/binding.gyp#L89
... which perhaps should be -std=c++11. (Interestingly, that is being used in the OS=="mac" condition.)

[saper]

Which compiler type and version are you using?

[drewfish]

$ g++ --version
g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

...also...

$ SKIP_SASS_BINARY_DOWNLOAD_FOR_CI=true SASS_FORCE_BUILD=true npm run-script postinstall                                                                                                                                                   
...
gyp info   g++ '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DBUILDING_NODE_EXTENSION' '-DDEBUG' '-D_DEBUG' -I/home/folta/.node-gyp/0.10.36/src -I/home/folta/.node-gyp/0.10.36/deps/uv/include -I/home/folta/.node-gyp/0.10.36/deps/v8/include -I../node_modules/nan  -fPIC -Wall -Wextra -Wno-unused-parameter -pthread -m64 -g -O0 -fno-rtti -std=c++0x -fexceptions -frtti -MMD -MF ./Debug/.deps/Debug/obj.target/binding/src/binding.o.d.raw  -c -o Debug/obj.target/binding/src/binding.o ../src/binding.cpp
spawn args [ 'V=1', 'BUILDTYPE=Debug', '-C', 'build' ]
../src/binding.cpp: In function ‘void GetStats(sass_context_wrapper*, Sass_Context*)’:
../src/binding.cpp:173: error: ‘nullptr’ was not declared in this scope
make: *** [Debug/obj.target/binding/src/binding.o] Error 1
make: Leaving directory `/home/folta/tmp/y/node_modules/node-sass/build'
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/home/folta/tmp/y/node_modules/node-sass/node_modules/pangyp/lib/build.js:271:23)
gyp ERR! stack     at ChildProcess.emit (events.js:98:17)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:820:12)
gyp ERR! System Linux 2.6.32-431.23.3.el6.YAHOO.20140804.x86_64
gyp ERR! command "/home/y/libexec64/node" "/home/folta/tmp/y/node_modules/node-sass/node_modules/pangyp/bin/node-gyp" "rebuild" "--verbose"
gyp ERR! cwd /home/folta/tmp/y/node_modules/node-sass
gyp ERR! node -v v0.10.36
gyp ERR! pangyp -v v2.1.0
gyp ERR! not ok 

[drewfish]

Oh hehe.. I just tried the change I suggested and got cc1plus: error: unrecognized command line option "-std=c++11".

[saper]

Well, anything older than gcc 4.6 is not supported by libsass, our C++ library. With node-sass 2.1.1 you might have some luck with gcc 4.5.

If you are feeling brave, you might want to try some of my patches to lower compiler requirement:

sass/libsass#996
sass/libsass#995

[drewfish]

Got it, thanks. I tried adding a #define nullptr NULL and then got a bunch of errors in libsass as you said.

Closing this bug, since my situation isn't something you support.