$ brew info glslang
glslang: stable 7.10.2984 (bottled), HEAD
OpenGL and OpenGL ES reference compiler for shading languages
https://www.khronos.org/opengles/sdk/tools/Reference-Compiler/
Not installed
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/glslang.rb
==> Dependencies
Build: cmake ✘
==> Options
--HEAD
Install HEAD version
==> Analytics
install: 1,147 (30 days), 1,770 (90 days), 2,664 (365 days)
install_on_request: 383 (30 days), 696 (90 days), 1,537 (365 days)
build_error: 0 (30 days)
$ brew install glslang
==> Downloading https://homebrew.bintray.com/bottles/glslang-7.10.2984.mojave.bo
######################################################################## 100.0%
==> Pouring glslang-7.10.2984.mojave.bottle.tar.gz
? /usr/local/Cellar/glslang/7.10.2984: 58 files, 6.7MB
$ glslangValidator -v
Glslang Version: 7.10.2984
ESSL Version: OpenGL ES GLSL 3.20 glslang Khronos. 10.2984
GLSL Version: 4.60 glslang Khronos. 10.2984
SPIR-V Version 0x00010300, Revision 1
GLSL.std.450 Version 100, Revision 1
Khronos Tool ID 8
SPIR-V Generator Version 7
GL_KHR_vulkan_glsl version 100
ARB_GL_gl_spirv version 100