CODEWITHSUNDEEP
macosc++11osx-mountain-lionmacports
Stéphane
Stéphane

Reputation: 20340

C++11 headers missing on Mac OS X 10.8.2 (MountainLion)

I'm new to Mac. I have some Linux and Windows C++11 source which uses Boost I'd like to build on this Mac. Installed MacPort (should I instead be using Homebrew?) then successfully ran commands such as:

sudo port install cmake
sudo port install boost
sudo port install openssl
sudo port install gcc49
sudo port install gcc_select
sudo port install --set gcc mp-gcc49

CMake correctly finds Boost 1.57.0 and sets up the makefile. But when I run make, it seems it cannot find normal C++11 headers such as "chrono":

In file included from ../src/test.cpp:10:
../src/test_private.hpp:33:10: fatal error: 'chrono' file not found
#include <chrono>
         ^
1 error generated.

Indeed, when I go looking for the C++ header files, I see some of them in /usr/include/c++/4.2.1/ but newer files such as chrono and thread are missing.

Is there another package I need to install before I can compile C++11 source code on a Mac?

Upvotes: 0

Views: 2860

Answers (1)

Howard Hinnant
Howard Hinnant

Reputation: 218750

Xcode, the Apple supplied compiler/tools, comes with two implementations of the std::lib:

  1. gcc's libstdc++, version 4.2.
  2. libc++

The first is very, very old, and does not support anything in C++11 such as <chrono>. The second supports C++11 quite well, but can only be used with clang, not gcc. clang comes with Xcode.

You will also need to install command line tools after you install Xcode:

xcode-select --install

Upvotes: 2

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