Changes between Version 18 and Version 19 of LibcxxOnOlderSystems

Timestamp:

Aug 6, 2015, 2:57:53 PM (9 years ago)

Author:

ryandesign (Ryan Carsten Schmidt)

Comment:

Add introductory paragraph explaining why one might want to do this

LibcxxOnOlderSystems

@@ -1 +1 @@
 = Using libc++ on older system =
+
+More and more C++ software is being written using the C++11 standard. The default C++ runtime on OS X 10.9 and later is libc++ which supports C++11 but on OS X 10.8 and earlier the default C++ runtime is a version of libstdc++ based on GCC 4.2.1 which does not support C++11. If you wish to build C++11-using software on 10.8 or earlier, you can switch MacPorts to use libc++ instead of libstdc++, but this must be done for MacPorts as a whole; it can't be done for individual ports.
+
+At this time the MacPorts project does not build binary packages for libc++ on systems older than 10.9, so if you make this change, MacPorts will be building all ports from source.
+
+If you use MacPorts C++-using ports as dependencies for C++-using software that you compile outside of MacPorts, you must compile that software using libc++ as well.
 
 == Lion and Mountain Lion ==