to_string was not declared in this scope

[ktnrs55]

I got following error.

~/git/memdb/pintools$ ./build.sh 
make: Nothing to be done for `all'.
make objects
make[1]: Entering directory `/home/foo/git/memdb/pintools'
make[1]: Nothing to be done for `objects'.
make[1]: Leaving directory `/home/foo/git/memdb/pintools'
make libs
make[1]: Entering directory `/home/foo/git/memdb/pintools'
make[1]: Nothing to be done for `libs'.
make[1]: Leaving directory `/home/foo/git/memdb/pintools'
make dlls
make[1]: Entering directory `/home/foo/git/memdb/pintools'
make[1]: Nothing to be done for `dlls'.
make[1]: Leaving directory `/home/foo/git/memdb/pintools'
make apps
make[1]: Entering directory `/home/foo/git/memdb/pintools'
make[1]: Nothing to be done for `apps'.
make[1]: Leaving directory `/home/foo/git/memdb/pintools'
make tools
make[1]: Entering directory `/home/foo/git/memdb/pintools'
g++ -Wall -Werror -Wno-unknown-pragmas -D__PIN__=1 -DPIN_CRT=1 -fno-stack-protector -fno-exceptions -funwind-tables -fasynchronous-unwind-tables -fno-rtti -DTARGET_IA32E -DHOST_IA32E -fPIC -DTARGET_LINUX -fabi-version=2  -I/home/foo/pin/source/include/pin -I/home/foo/pin/source/include/pin/gen -isystem /home/foo/pin/extras/stlport/include -isystem /home/foo/pin/extras/libstdc++/include -isystem /home/foo/pin/extras/crt/include -isystem /home/foo/pin/extras/crt/include/arch-x86_64 -isystem /home/foo/pin/extras/crt/include/kernel/uapi -isystem /home/foo/pin/extras/crt/include/kernel/uapi/asm-x86 -I/home/foo/pin/extras/components/include -I/home/foo/pin/extras/xed-intel64/include/xed -I/home/foo/pin/source/tools/InstLib -O3 -fomit-frame-pointer -fno-strict-aliasing  -std=c++0x -g -Wno-error=format-contains-nul -Wno-format-contains-nul -Wno-write-strings  -c -o obj-intel64/memtracker.o memtracker.cpp
memtracker.cpp: In function ‘VOID recordMemoryAccess(ADDRINT, UINT32, ADDRINT, VOID*, VOID*)’:
memtracker.cpp:1160:46: error: ‘to_string’ was not declared in this scope
      source = filename + ":" + to_string(line);
                                              ^
make[1]: *** [obj-intel64/memtracker.o] Error 1
make[1]: Leaving directory `/home/foo/git/memdb/pintools'
make: *** [all] Error 2

Change from to_string to std::tostring doesn't help.
But code below is working.

#include <iostream>   // std::cout
#include <string>     // std::string, std::to_string

int main ()
{
  std::string pi = "pi is " + std::to_string(3.1415926);
  std::string perfect = std::to_string(1+2+4+7+14) + " is a perfect number";
  std::cout << pi << '\n';
  std::cout << perfect << '\n';
  return 0;
}

Compile with

g++ asdf.cpp -std=c++0x

-std=c++0x option might be overwrited? But where??

[ktnrs55]

The workaround is

 std::stringstream ss;
	  ss << line;
	  source = filename + ":" + ss.str();

But if letting me know the cause of problem, it helps me a lot.