LLVM version appears incorrect after install in Ubuntu 18.04

In Ubuntu 18.04 (previously setup for C++ development), attempting to install emscripten through apt brings the message:

root: LLVM version appears incorrect (seeing "(tags/RELEASE_600/final)", expected "3.4")

Full transcript follows:

```
sudo apt install emscripten
[sudo] password for mike:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
linux-hwe-5.4-headers-5.4.0-42 linux-hwe-5.4-headers-5.4.0-45
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
libandroid-json-org-java libargs4j-java libclosure-compiler-java llvm
llvm-runtime node-amdefine node-ansi-regex node-ansi-styles node-camelcase
node-cliui node-clone node-color-convert node-color-name node-cross-spawn
node-decamelize node-defaults node-execa node-find-up node-get-caller-file
node-get-stream node-invert-kv node-is-stream node-isexe node-lcid
node-locate-path node-lru-cache node-mem node-mimic-fn node-npm-run-path
node-os-locale node-p-limit node-p-locate node-path-exists node-pseudomap
node-require-directory node-require-main-filename node-set-blocking
node-shebang-command node-shebang-regex node-signal-exit node-source-map
node-string-width node-strip-ansi node-strip-eof node-uglify node-wcwidth.js
node-which node-which-module node-wrap-ansi node-y18n node-yallist
node-yargs node-yargs-parser
Suggested packages:
libandroid-json-org-java-doc libclosure-compiler-java-doc node-acorn
node-uglify-to-browserify
The following NEW packages will be installed:
emscripten libandroid-json-org-java libargs4j-java libclosure-compiler-java
llvm llvm-runtime node-amdefine node-ansi-regex node-ansi-styles
node-camelcase node-cliui node-clone node-color-convert node-color-name
node-cross-spawn node-decamelize node-defaults node-execa node-find-up
node-get-caller-file node-get-stream node-invert-kv node-is-stream
node-isexe node-lcid node-locate-path node-lru-cache node-mem node-mimic-fn
node-npm-run-path node-os-locale node-p-limit node-p-locate node-path-exists
node-pseudomap node-require-directory node-require-main-filename
node-set-blocking node-shebang-command node-shebang-regex node-signal-exit
node-source-map node-string-width node-strip-ansi node-strip-eof node-uglify
node-wcwidth.js node-which node-which-module node-wrap-ansi node-y18n
node-yallist node-yargs node-yargs-parser
0 upgraded, 54 newly installed, 0 to remove and 3 not upgraded.
Need to get 23.7 MB of archives.
After this operation, 104 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 libandroid-json-org-java all 20121204-20090211-2 [22.7 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 libargs4j-java all 2.33-1 [138 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 libclosure-compiler-java all 20130227+dfsg1-10 [3,408 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 llvm-runtime amd64 1:6.0-41~exp5~ubuntu1 [2,856 B]
Get:5 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 llvm amd64 1:6.0-41~exp5~ubuntu1 [3,468 B]
Get:6 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-ansi-regex all 3.0.0-1 [3,788 B]
Get:7 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-strip-ansi all 4.0.0-1 [3,204 B]
Get:8 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-clone all 2.1.1-1 [7,568 B]
Get:9 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-defaults all 1.0.3-1 [3,142 B]
Get:10 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-wcwidth.js all 1.0.0-1 [6,450 B]
Get:11 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-string-width all 2.1.1-1 [4,104 B]
Get:12 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-color-name all 1.1.3-1 [4,224 B]
Get:13 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-color-convert all 1.9.0-2build2 [9,500 B]
Get:14 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-ansi-styles all 3.2.0-1 [5,408 B]
Get:15 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-wrap-ansi all 3.0.1-1 [5,404 B]
Get:16 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-cliui all 4.0.0-1 [6,960 B]
Get:17 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-decamelize all 1.2.0-1 [3,090 B]
Get:18 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-yallist all 2.0.0-1 [5,398 B]
Get:19 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-pseudomap all 1.0.2-1 [3,534 B]
Get:20 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-lru-cache all 4.1.1-1 [8,228 B]
Get:21 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-isexe all 2.0.0-3 [4,376 B]
Get:22 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-which all 1.3.0-1 [4,504 B]
Get:23 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-shebang-regex all 2.0.0-1 [2,776 B]
Get:24 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-shebang-command all 1.2.0-1 [2,934 B]
Get:25 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-cross-spawn all 5.1.0-1ubuntu1 [8,376 B]
Get:26 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-is-stream all 1.1.0-1 [3,046 B]
Get:27 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-get-stream all 3.0.0-1 [4,758 B]
Get:28 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-strip-eof all 1.0.0-2 [3,040 B]
Get:29 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-npm-run-path all 2.0.2-2 [4,448 B]
Get:30 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-signal-exit all 3.0.2-1 [5,156 B]
Get:31 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-execa all 0.5.0-1 [6,854 B]
Get:32 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-p-limit all 1.1.0-1 [3,422 B]
Get:33 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-p-locate all 2.0.0-1 [4,104 B]
Get:34 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-path-exists all 3.0.0-1 [3,196 B]
Get:35 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-locate-path all 2.0.0-1 [3,852 B]
Get:36 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-find-up all 2.1.0-1 [3,684 B]
Get:37 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-get-caller-file all 1.0.2-1 [2,850 B]
Get:38 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-invert-kv all 1.0.0-1 [2,900 B]
Get:39 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-lcid all 1.0.0-1 [4,264 B]
Get:40 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-mimic-fn all 1.1.0-1 [3,102 B]
Get:41 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-mem all 1.1.0-1 [4,116 B]
Get:42 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-os-locale all 2.0.0-1 [3,750 B]
Get:43 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-require-directory all 2.1.1-1 [5,394 B]
Get:44 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-require-main-filename all 1.0.1-1 [3,198 B]
Get:45 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-set-blocking all 2.0.0-1 [3,402 B]
Get:46 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-which-module all 2.0.0-1 [3,368 B]
Get:47 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-y18n all 3.2.1-2 [4,738 B]
Get:48 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-camelcase all 4.1.0-1 [3,572 B]
Get:49 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-yargs-parser all 8.0.0-1 [11.3 kB]
Get:50 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-yargs all 10.0.3-2 [33.8 kB]
Get:51 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-uglify all 2.8.29-3 [115 kB]
Get:52 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 emscripten amd64 1.22.1-1build1 [19.8 MB]
Get:53 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-amdefine all 0.1.0-1 [12.1 kB]
Get:54 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 node-source-map all 0.5.7+dfsg-1 [31.5 kB]
Fetched 23.7 MB in 3s (8,003 kB/s)
Extracting templates from packages: 100%
Selecting previously unselected package libandroid-json-org-java.
(Reading database ... 372566 files and directories currently installed.)
Preparing to unpack .../00-libandroid-json-org-java_20121204-20090211-2_all.deb ...
Unpacking libandroid-json-org-java (20121204-20090211-2) ...
Selecting previously unselected package libargs4j-java.
Preparing to unpack .../01-libargs4j-java_2.33-1_all.deb ...
Unpacking libargs4j-java (2.33-1) ...
Selecting previously unselected package libclosure-compiler-java.
Preparing to unpack .../02-libclosure-compiler-java_20130227+dfsg1-10_all.deb ...
Unpacking libclosure-compiler-java (20130227+dfsg1-10) ...
Selecting previously unselected package llvm-runtime.
Preparing to unpack .../03-llvm-runtime_1%3a6.0-41~exp5~ubuntu1_amd64.deb ...
Unpacking llvm-runtime (1:6.0-41~exp5~ubuntu1) ...
Selecting previously unselected package llvm.
Preparing to unpack .../04-llvm_1%3a6.0-41~exp5~ubuntu1_amd64.deb ...
Unpacking llvm (1:6.0-41~exp5~ubuntu1) ...
Selecting previously unselected package node-ansi-regex.
Preparing to unpack .../05-node-ansi-regex_3.0.0-1_all.deb ...
Unpacking node-ansi-regex (3.0.0-1) ...
Selecting previously unselected package node-strip-ansi.
Preparing to unpack .../06-node-strip-ansi_4.0.0-1_all.deb ...
Unpacking node-strip-ansi (4.0.0-1) ...
Selecting previously unselected package node-clone.
Preparing to unpack .../07-node-clone_2.1.1-1_all.deb ...
Unpacking node-clone (2.1.1-1) ...
Selecting previously unselected package node-defaults.
Preparing to unpack .../08-node-defaults_1.0.3-1_all.deb ...
Unpacking node-defaults (1.0.3-1) ...
Selecting previously unselected package node-wcwidth.js.
Preparing to unpack .../09-node-wcwidth.js_1.0.0-1_all.deb ...
Unpacking node-wcwidth.js (1.0.0-1) ...
Selecting previously unselected package node-string-width.
Preparing to unpack .../10-node-string-width_2.1.1-1_all.deb ...
Unpacking node-string-width (2.1.1-1) ...
Selecting previously unselected package node-color-name.
Preparing to unpack .../11-node-color-name_1.1.3-1_all.deb ...
Unpacking node-color-name (1.1.3-1) ...
Selecting previously unselected package node-color-convert.
Preparing to unpack .../12-node-color-convert_1.9.0-2build2_all.deb ...
Unpacking node-color-convert (1.9.0-2build2) ...
Selecting previously unselected package node-ansi-styles.
Preparing to unpack .../13-node-ansi-styles_3.2.0-1_all.deb ...
Unpacking node-ansi-styles (3.2.0-1) ...
Selecting previously unselected package node-wrap-ansi.
Preparing to unpack .../14-node-wrap-ansi_3.0.1-1_all.deb ...
Unpacking node-wrap-ansi (3.0.1-1) ...
Selecting previously unselected package node-cliui.
Preparing to unpack .../15-node-cliui_4.0.0-1_all.deb ...
Unpacking node-cliui (4.0.0-1) ...
Selecting previously unselected package node-decamelize.
Preparing to unpack .../16-node-decamelize_1.2.0-1_all.deb ...
Unpacking node-decamelize (1.2.0-1) ...
Selecting previously unselected package node-yallist.
Preparing to unpack .../17-node-yallist_2.0.0-1_all.deb ...
Unpacking node-yallist (2.0.0-1) ...
Selecting previously unselected package node-pseudomap.
Preparing to unpack .../18-node-pseudomap_1.0.2-1_all.deb ...
Unpacking node-pseudomap (1.0.2-1) ...
Selecting previously unselected package node-lru-cache.
Preparing to unpack .../19-node-lru-cache_4.1.1-1_all.deb ...
Unpacking node-lru-cache (4.1.1-1) ...
Selecting previously unselected package node-isexe.
Preparing to unpack .../20-node-isexe_2.0.0-3_all.deb ...
Unpacking node-isexe (2.0.0-3) ...
Selecting previously unselected package node-which.
Preparing to unpack .../21-node-which_1.3.0-1_all.deb ...
Unpacking node-which (1.3.0-1) ...
Selecting previously unselected package node-shebang-regex.
Preparing to unpack .../22-node-shebang-regex_2.0.0-1_all.deb ...
Unpacking node-shebang-regex (2.0.0-1) ...
Selecting previously unselected package node-shebang-command.
Preparing to unpack .../23-node-shebang-command_1.2.0-1_all.deb ...
Unpacking node-shebang-command (1.2.0-1) ...
Selecting previously unselected package node-cross-spawn.
Preparing to unpack .../24-node-cross-spawn_5.1.0-1ubuntu1_all.deb ...
Unpacking node-cross-spawn (5.1.0-1ubuntu1) ...
Selecting previously unselected package node-is-stream.
Preparing to unpack .../25-node-is-stream_1.1.0-1_all.deb ...
Unpacking node-is-stream (1.1.0-1) ...
Selecting previously unselected package node-get-stream.
Preparing to unpack .../26-node-get-stream_3.0.0-1_all.deb ...
Unpacking node-get-stream (3.0.0-1) ...
Selecting previously unselected package node-strip-eof.
Preparing to unpack .../27-node-strip-eof_1.0.0-2_all.deb ...
Unpacking node-strip-eof (1.0.0-2) ...
Selecting previously unselected package node-npm-run-path.
Preparing to unpack .../28-node-npm-run-path_2.0.2-2_all.deb ...
Unpacking node-npm-run-path (2.0.2-2) ...
Selecting previously unselected package node-signal-exit.
Preparing to unpack .../29-node-signal-exit_3.0.2-1_all.deb ...
Unpacking node-signal-exit (3.0.2-1) ...
Selecting previously unselected package node-execa.
Preparing to unpack .../30-node-execa_0.5.0-1_all.deb ...
Unpacking node-execa (0.5.0-1) ...
Selecting previously unselected package node-p-limit.
Preparing to unpack .../31-node-p-limit_1.1.0-1_all.deb ...
Unpacking node-p-limit (1.1.0-1) ...
Selecting previously unselected package node-p-locate.
Preparing to unpack .../32-node-p-locate_2.0.0-1_all.deb ...
Unpacking node-p-locate (2.0.0-1) ...
Selecting previously unselected package node-path-exists.
Preparing to unpack .../33-node-path-exists_3.0.0-1_all.deb ...
Unpacking node-path-exists (3.0.0-1) ...
Selecting previously unselected package node-locate-path.
Preparing to unpack .../34-node-locate-path_2.0.0-1_all.deb ...
Unpacking node-locate-path (2.0.0-1) ...
Selecting previously unselected package node-find-up.
Preparing to unpack .../35-node-find-up_2.1.0-1_all.deb ...
Unpacking node-find-up (2.1.0-1) ...
Selecting previously unselected package node-get-caller-file.
Preparing to unpack .../36-node-get-caller-file_1.0.2-1_all.deb ...
Unpacking node-get-caller-file (1.0.2-1) ...
Selecting previously unselected package node-invert-kv.
Preparing to unpack .../37-node-invert-kv_1.0.0-1_all.deb ...
Unpacking node-invert-kv (1.0.0-1) ...
Selecting previously unselected package node-lcid.
Preparing to unpack .../38-node-lcid_1.0.0-1_all.deb ...
Unpacking node-lcid (1.0.0-1) ...
Selecting previously unselected package node-mimic-fn.
Preparing to unpack .../39-node-mimic-fn_1.1.0-1_all.deb ...
Unpacking node-mimic-fn (1.1.0-1) ...
Selecting previously unselected package node-mem.
Preparing to unpack .../40-node-mem_1.1.0-1_all.deb ...
Unpacking node-mem (1.1.0-1) ...
Selecting previously unselected package node-os-locale.
Preparing to unpack .../41-node-os-locale_2.0.0-1_all.deb ...
Unpacking node-os-locale (2.0.0-1) ...
Selecting previously unselected package node-require-directory.
Preparing to unpack .../42-node-require-directory_2.1.1-1_all.deb ...
Unpacking node-require-directory (2.1.1-1) ...
Selecting previously unselected package node-require-main-filename.
Preparing to unpack .../43-node-require-main-filename_1.0.1-1_all.deb ...
Unpacking node-require-main-filename (1.0.1-1) ...
Selecting previously unselected package node-set-blocking.
Preparing to unpack .../44-node-set-blocking_2.0.0-1_all.deb ...
Unpacking node-set-blocking (2.0.0-1) ...
Selecting previously unselected package node-which-module.
Preparing to unpack .../45-node-which-module_2.0.0-1_all.deb ...
Unpacking node-which-module (2.0.0-1) ...
Selecting previously unselected package node-y18n.
Preparing to unpack .../46-node-y18n_3.2.1-2_all.deb ...
Unpacking node-y18n (3.2.1-2) ...
Selecting previously unselected package node-camelcase.
Preparing to unpack .../47-node-camelcase_4.1.0-1_all.deb ...
Unpacking node-camelcase (4.1.0-1) ...
Selecting previously unselected package node-yargs-parser.
Preparing to unpack .../48-node-yargs-parser_8.0.0-1_all.deb ...
Unpacking node-yargs-parser (8.0.0-1) ...
Selecting previously unselected package node-yargs.
Preparing to unpack .../49-node-yargs_10.0.3-2_all.deb ...
Unpacking node-yargs (10.0.3-2) ...
Selecting previously unselected package node-uglify.
Preparing to unpack .../50-node-uglify_2.8.29-3_all.deb ...
Unpacking node-uglify (2.8.29-3) ...
Selecting previously unselected package emscripten.
Preparing to unpack .../51-emscripten_1.22.1-1build1_amd64.deb ...
Unpacking emscripten (1.22.1-1build1) ...
Selecting previously unselected package node-amdefine.
Preparing to unpack .../52-node-amdefine_0.1.0-1_all.deb ...
Unpacking node-amdefine (0.1.0-1) ...
Selecting previously unselected package node-source-map.
Preparing to unpack .../53-node-source-map_0.5.7+dfsg-1_all.deb ...
Unpacking node-source-map (0.5.7+dfsg-1) ...
Setting up node-invert-kv (1.0.0-1) ...
Setting up libargs4j-java (2.33-1) ...
Setting up node-color-name (1.1.3-1) ...
Setting up node-lcid (1.0.0-1) ...
Setting up node-is-stream (1.1.0-1) ...
Setting up node-mimic-fn (1.1.0-1) ...
Setting up libandroid-json-org-java (20121204-20090211-2) ...
Setting up node-yallist (2.0.0-1) ...
Setting up libclosure-compiler-java (20130227+dfsg1-10) ...
Setting up node-pseudomap (1.0.2-1) ...
Setting up node-p-limit (1.1.0-1) ...
Setting up node-mem (1.1.0-1) ...
Setting up node-get-caller-file (1.0.2-1) ...
Setting up node-get-stream (3.0.0-1) ...
Setting up llvm-runtime (1:6.0-41~exp5~ubuntu1) ...
Setting up node-set-blocking (2.0.0-1) ...
Setting up node-require-directory (2.1.1-1) ...
Setting up node-signal-exit (3.0.2-1) ...
Setting up node-camelcase (4.1.0-1) ...
Setting up node-which-module (2.0.0-1) ...
Setting up node-shebang-regex (2.0.0-1) ...
Setting up node-decamelize (1.2.0-1) ...
Setting up node-y18n (3.2.1-2) ...
Setting up node-ansi-regex (3.0.0-1) ...
Setting up node-isexe (2.0.0-3) ...
Setting up node-npm-run-path (2.0.2-2) ...
Setting up node-color-convert (1.9.0-2build2) ...
Setting up node-amdefine (0.1.0-1) ...
Setting up node-strip-eof (1.0.0-2) ...
Setting up node-require-main-filename (1.0.1-1) ...
Setting up node-strip-ansi (4.0.0-1) ...
Setting up node-yargs-parser (8.0.0-1) ...
Setting up node-path-exists (3.0.0-1) ...
Setting up node-clone (2.1.1-1) ...
Setting up node-p-locate (2.0.0-1) ...
Setting up node-defaults (1.0.3-1) ...
Setting up node-source-map (0.5.7+dfsg-1) ...
Setting up node-shebang-command (1.2.0-1) ...
Setting up node-which (1.3.0-1) ...
Setting up node-lru-cache (4.1.1-1) ...
Setting up llvm (1:6.0-41~exp5~ubuntu1) ...
Setting up node-cross-spawn (5.1.0-1ubuntu1) ...
Setting up node-ansi-styles (3.2.0-1) ...
Setting up node-wcwidth.js (1.0.0-1) ...
Setting up node-locate-path (2.0.0-1) ...
Setting up node-execa (0.5.0-1) ...
Setting up node-string-width (2.1.1-1) ...
Setting up node-os-locale (2.0.0-1) ...
Setting up node-wrap-ansi (3.0.1-1) ...
Setting up node-cliui (4.0.0-1) ...
Setting up node-find-up (2.1.0-1) ...
Setting up node-yargs (10.0.3-2) ...
Setting up node-uglify (2.8.29-3) ...
Setting up emscripten (1.22.1-1build1) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
mike@NUC7i5Upstairs:~/Dev$ em++ --version

==============================================================================
Welcome to Emscripten!

This is the first time any of the Emscripten tools has been run.

A settings file has been copied to ~/.emscripten, at absolute path: /home/mike/.emscripten

It contains our best guesses for the important paths, which are:

LLVM_ROOT = /usr/bin
NODE_JS = /usr/bin/node
EMSCRIPTEN_ROOT = /usr/share/emscripten

Please edit the file if any of those are incorrect.

This command will now exit. When you are done editing those paths, re-run it.
==============================================================================

mike@NUC7i5Upstairs:~/Dev$ em++ --version
WARNING root: LLVM version appears incorrect (seeing "(tags/RELEASE_600/final)", expected "3.4")
INFO root: (Emscripten: Running sanity checks)
emcc (Emscripten GCC-like replacement) 1.22.1 ()
Copyright (C) 2014 the Emscripten authors (see AUTHORS.txt)
This is free and open source software under the MIT license.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
```

My first page of Google results wasn't helpful, I'm hopeful that this answer will help others get to a faster resolution in the future.