How to install clang++ on osx?
Solution 1
I suspect all you were missing was libstdc++ but trying to figure that out without seeing your build log is impossible. Especially as you say 'after installation...' when there's no installation step in the instructions you link to, only build?
So, I'm going to suggest you use brew to do the install along with the dependencies. llvm35 is a bit bleeding edge but the current instructions that install that with brew
are:
Step 1: make sure you have a recent enough gcc/libc to build clang (may not be necessary for you):
$ brew install gcc47
Step 2: install the HEAD version of llvm35 with all the trimmings (see https://github.com/Homebrew/homebrew-versions/issues/340 - you MUST read this, because we are building HEAD versions the instructions might be updated tomorrow. Correct just now, I just built it!):
$ brew install isl --HEAD
$ brew install --cc=gcc-4.7 --HEAD llvm35 --with-asan --with-clang --with-libcxx --rtti --all-targets
# wait....
🍺 /usr/local/Cellar/llvm35/HEAD: 1427 files, 240M, built in 18.3 minutes
$ /usr/local/Cellar/llvm35/HEAD/bin/clang++-3.5 -v
clang version 3.5
Target: x86_64-apple-darwin12.5.0
Thread model: posix
Note my command differs from the one in the link by including --cc=gcc-4.7
to use the gcc installed in step 1; if your gcc is already good enough, you won't need that. This is installed keg-only so won't be in the usual paths (see: https://github.com/Homebrew/homebrew/wiki/FAQ, by 'Cellar' they mean /usr/local/Cellar; I've shown the path mine built above)
Solution 2
As of now you can just do
brew install llvm
For me this installed llvm and clang 4.0.0 to /usr/local/opt/llvm
Comments
-
rdo over 1 year
I've have got a default clang and clang++ in
/usr/bin/
directory. Both of them have 3.3 version.Also I've installed clang with help of this specification. After installation I've gotten additional binary utility
clang-3.5
. Butclang++-3.5
was not installed. How to install it? -
rdo over 9 yearsWhat do you mean missing libstdc++? Is it an additional option for configure script or make command?
-
bazzargh over 9 yearsI was referring to the instructions you linked to, step 7. As I said, I'm not going to get into the game of guessing what you've done wrong without seeing a log, but if your build did create clang++ and you've just mislaid it, you'll find a line like "> llvm[4]: ======= Finished Creating Debug+Asserts Alias clang++" in your log.
-
Ian Vaughan over 1 yearDidnt work for me, trying to
asdf install python 3.6.2
checking for --with-cxx-main=<compiler>... no checking for clang++... no -
Timmmm over 1 yearYeah because you need to add it to your PATH.