admin/brew
1
0
Fork 0
Code Issues Packages Projects Releases 6 Wiki Activity

C++-Standard-Libraries: wrap to ~80 characters

Browse Source
This commit is contained in:
Dominyk Tiller 2016-09-14 17:29:07 +01:00
parent 06145dd6d0
commit 372a2b2470
No known key found for this signature in database
GPG Key ID: FE19AEFCF658C6F6
1 changed files with 14 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
share/doc/homebrew/C++-Standard-Libraries.md
View File

@ -1,13 +1,23 @@
# C++ Standard Libraries
There are two C++ standard libraries supported by Apple compilers.
The default for 10.8 and earlier is **libstdc++**, supported by Apple GCC compilers, GNU GCC compilers, and clang. This was marked deprecated with a warning during compile as of Xcode 8.
The default for 10.8 and earlier is **libstdc++**, supported by Apple GCC
compilers, GNU GCC compilers, and clang. This was marked deprecated with a
warning during compile as of Xcode 8.
The default for 10.9 is **libc++**, which is also the default for clang on older platforms when building C++11 code.
The default for 10.9 is **libc++**, which is also the default for clang on older
platforms when building C++11 code.
There are subtle incompatibilities between several of the C++ standard libraries, so Homebrew will refuse to install software if a dependency was built with an incompatible C++ library. It's recommended that you install the dependency tree using a compatible compiler.
There are subtle incompatibilities between several of the C++ standard libraries,
so Homebrew will refuse to install software if a dependency was built with an
incompatible C++ library. It's recommended that you install the dependency tree
using a compatible compiler.
**If you've upgraded to 10.9 from an earlier version** - because the default C++ standard library is now libc++, you may not be able to build software using dependencies that you built on 10.8 or lower. If you're reading this page because you were directed here by a build error, you can most likely fix the issue if you reinstall all the dependencies of the package you're trying to build.
**If you've upgraded to 10.9 from an earlier version** - because the default C++
standard library is now libc++, you may not be able to build software using
dependencies that you built on 10.8 or lower. If you're reading this page because
you were directed here by a build error, you can most likely fix the issue if
you reinstall all the dependencies of the package you're trying to build.
Example install using GCC 4.8: ```brew install DESIRED_FORMULA --cc=gcc-4.8```.
Get GCC 4.8 via: ```brew install gcc48```