freeglut 是 GLUT （OpenGL Utility Toolkit）的一个免费开源替代库。在程序中负责创建窗口、初始化 OpenGL 上下文和处理输入事件所需的所有系统特定的杂务，从而允许创建真正可移植的 OpenGL 程序。
源码路径
https://github.com/freeglut/freeglut
编译选项
Breakdown of CMake configuration options
----------------------------------------
CMAKE_BUILD_TYPE [Empty, Debug, Release] Can be overridden by
passing it as a make variable during build.
CMAKE_INSTALL_PREFIX Installation prefix (e.g. /usr/local on UNIX)
FREEGLUT_BUILD_DEMOS [ON, OFF] Controls whether the demos are
built or not.
FREEGLUT_BUILD_SHARED_LIBS [ON, OFF] Build freeglut as a shared library
FREEGLUT_BUILD_STATIC_LIBS [ON, OFF] Build freeglut as a static library
FREEGLUT_GLES [ON, OFF] Link with GLEs libraries instead
of OpenGL
FREEGLUT_WAYLAND [ON, OFF] Link with Wayland libraries instead
of X11
FREEGLUT_PRINT_ERRORS [ON, OFF] Controls whether errors are
default handled or not when user does not
provide an error callback
FREEGLUT_PRINT_WARNINGS [ON, OFF] Controls whether warnings are
default handled or not when user does not
provide an warning callback
FREEGLUT_REPLACE_GLUT [ON, OFF] For non-Windows platforms,
freeglut is by default built as -lglut. if
off, built as -lfreeglut. On Windows,
libraries are always built as freeglut.
INSTALL_PDB [ON, OFF] MSVC only: controls whether debug
information files are included with the
install or not
mkdir build
cd build/
cmake .. -G "Ninja Multi-Config" -DCMAKE_BUILD_TYPE="Debug" -DCMAKE_DEBUG_POSTFIX="_d" -DCMAKE_INSTALL_PREFIX=publish/Debug -DBUILD_SHARED_LIBS=ON
export NPROC=$(nproc)
ninja -j${NPROC}
ninja install
mkdir build-release
cd build-release/
cmake .. -G "Ninja Multi-Config" -DCMAKE_BUILD_TYPE="Release" -DCMAKE_INSTALL_PREFIX=publish/Release -DBUILD_SHARED_LIBS=ON
ninja install
