Beyond Linux® From Scratch (System V Edition) - Version r12.3-326

Chapter 25. Graphical Environment Libraries

glslang-15.2.0

Introduction to Glslang

The Glslang package contains an frontend and validator for OpenGL, OpenGL ES, and Vulkan shaders.

[Note]

Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

Package Information

Additional Downloads

Required patch to ensure the libSPIRV.so library is installed: https://www.linuxfromscratch.org/patches/blfs/svn/glslang/glslang-15.2.0-SPIRV_install-1.patch

Glslang Dependencies

Required

CMake-4.0.0 and SPIRV-Tools-1.4.309.0

Installation of Glslang

First patch the package to ensure the libSPIRV.so library is installed: 

patch -Np1 -i ../glslang-15.2.0-SPIRV_install-1.patch

Install Glslang by running the following commands: 

mkdir build &&
cd    build &&

cmake -D CMAKE_INSTALL_PREFIX=/usr     \
      -D CMAKE_BUILD_TYPE=Release      \
      -D ALLOW_EXTERNAL_SPIRV_TOOLS=ON \
      -D BUILD_SHARED_LIBS=ON          \
      -D GLSLANG_TESTS=ON              \
      -G Ninja .. &&
ninja

To test the results, issue: ninja test.

Now, as the root user: 

ninja install

Command Explanations

-D ALLOW_EXTERNAL_SPIRV_TOOLS=ON: This switch allows the build system to use the system-installed copy of SPIRV-Tools-1.4.309.0, instead of downloading and installing it's own copy.

-D BUILD_SHARED_LIBS=ON: This switch builds shared versions of the libraries, and does not install static versions of them.

-D GLSLANG_TESTS=ON: This switch builds the tests for the package.

Contents

Installed Programs: glslang, glslang-validator (symlink to glslang), and spirv-remap
Installed Libraries: libglslang.so, libglslang-default-resource-limits.so, libSPIRV.so, and libSPVRemapper.so
Installed Directories: /usr/include/glslang and /usr/lib/cmake/glslang

Short Descriptions

glslang

provides a front end and validator for OpenGL, OpenGL ES, and Vulkan shaders

libglslang.so

contains functions that provide a front-end and validator for OpenGL, OpenGL ES, and Vulkan shaders to other programs

libSPIRV.so

provides a front-end and generator for SPIR-V binaries

libSPVRemapper.so

provides a remapper for SPIR-V binaries