G++ does not seem to recognize -std=c++11

I compile my code with the flag -std=c++11 given, and I get all kinds of errors depicting that I should use the same flag. Also, auto is not recognised being a type.

Makefile:

GCCPATH = /path/gcc/5.3.0
CC = $(GCCPATH)/bin/g++
DARGS = -ggdb               #debug arguments
CARGS = -std=c++11          #C arguments
WARGS = -Wall -Wextra       #warning arguments
AARGS = $(DARGS) $(CARGS) $(WARGS)  #all arguments
GCCLIBPATH = $(GCCPATH)/lib64
LIBS = -l curl
LIBD = -L $(GCCLIBPATH) -Wl,-rpath=$(GCCLIBPATH)

.PHONY: webspider

webspider: ../title/htmlstreamparser.o filesystem.o
    $(CC) $(AARGS) -o $@ $@.cpp $+ $(LIBS) $(LIBD)

filesystem:
    $(CC) $(AARGS) -c $@.cpp

The warnings and errors I get:

warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11
warning: range-based ‘for’ loops only available with -std=c++11 or -std=gnu++11
error: ‘weblink’ does not name a type
  for(auto weblink: weblinks)

Now my question is: What should I do to make g++ recognise this clearly given flag?
I also tried to replace it with -std=c++0x, to no avail.

EDIT:
Full output of make:

g++    -c -o filesystem.o filesystem.cpp
In file included from filesystem.cpp:1:0:
filesystem.hpp:23:36: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11
   std::string dir = getCurrentPath();
                                    ^
filesystem.cpp: In member function ‘std::__cxx11::string Filesystem::createMD5(std::__cxx11::string)’:
filesystem.cpp:49:19: warning: range-based ‘for’ loops only available with -std=c++11 or -std=gnu++11
  for(long long c: result)
                   ^
filesystem.cpp: In member function ‘void Filesystem::createLinkIndex(std::__cxx11::string, strVec)’:
filesystem.cpp:57:11: error: ‘weblink’ does not name a type
  for(auto weblink: weblinks) {
           ^
filesystem.cpp:61:1: error: expected ‘;’ before ‘}’ token
 }
 ^
filesystem.cpp:61:1: error: expected primary-expression before ‘}’ token
filesystem.cpp:61:1: error: expected ‘;’ before ‘}’ token
filesystem.cpp:61:1: error: expected primary-expression before ‘}’ token
filesystem.cpp:61:1: error: expected ‘)’ before ‘}’ token
filesystem.cpp:61:1: error: expected primary-expression before ‘}’ token
make: *** [filesystem.o] Error 1