I'm on Linux, in an Ubuntu-based distro. Today I was fiddling around with my Swift binaries to test
swiftenv, and suddenly after a fresh install of the Swift 4.1 toolchain, I got this output:
swift build swift: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by swift)
I've been trying to fix it for 3-4 hours now. I ran
apt-get upgrade among others to see if I needed an update on some library or something like that.
When I query my system to see whether I have the library required, I get this:
felix@felix-X550LD:~$ strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX GLIBCXX_3.4 GLIBCXX_3.4.1 GLIBCXX_3.4.2 GLIBCXX_3.4.3 GLIBCXX_3.4.4 GLIBCXX_3.4.5 GLIBCXX_3.4.6 GLIBCXX_3.4.7 GLIBCXX_3.4.8 GLIBCXX_3.4.9 GLIBCXX_3.4.10 GLIBCXX_3.4.11 GLIBCXX_3.4.12 GLIBCXX_3.4.13 GLIBCXX_3.4.14 GLIBCXX_3.4.15 GLIBCXX_3.4.16 GLIBCXX_3.4.17 GLIBCXX_3.4.18 GLIBCXX_3.4.19 GLIBCXX_3.4.20 GLIBCXX_3.4.21 GLIBCXX_DEBUG_MESSAGE_LENGTH
Somehow I don't have the latest --
GLIBCXX_3.4.22 -- but it's required. My guess is that it isn't available on
apt-get yet, maybe? Canonical can be slow to release binaries. But that wouldn't explain how for same version of Swift (this morning it was fine) I got different results. What happened? Were the binaries changed today?
Any help is appreciated.
PS: my OS is ElementaryOS
PPS: I tested it with Swift 4.0 as well.