From afab41be48e3929dd761e0b53ec8153004a3abb4 Mon Sep 17 00:00:00 2001
From: Dario Cangialosi <dario.cangialosi@gmail.com>
Date: Fri, 7 Jul 2023 12:05:28 +0200
Subject: [PATCH] [build in CMake for viewer] adding it. compiles and works on
 Windows MSYS/MINGW and Debian MX.

---
 examples/viewer/.gitignore     |  1 +
 examples/viewer/CMakeLists.txt | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 examples/viewer/.gitignore
 create mode 100644 examples/viewer/CMakeLists.txt

diff --git a/examples/viewer/.gitignore b/examples/viewer/.gitignore
new file mode 100644
index 00000000..378eac25
--- /dev/null
+++ b/examples/viewer/.gitignore
@@ -0,0 +1 @@
+build
diff --git a/examples/viewer/CMakeLists.txt b/examples/viewer/CMakeLists.txt
new file mode 100644
index 00000000..df3af268
--- /dev/null
+++ b/examples/viewer/CMakeLists.txt
@@ -0,0 +1,29 @@
+# cmake -S . -B build && cmake --build build && build/app
+
+# cmake -S . -B build -G "Ninja" && cmake --build build && build/app
+# cmake -S . -B build -G "CodeBlocks - Ninja" && cmake --build build && build/app
+# cmake -S . -B build -G "Visual Studio 17 2022" && cmake --build build && build/app
+
+cmake_minimum_required(VERSION 3.18)
+project( app VERSION 0.1 )
+
+file(GLOB SOURCE_FILES "*.c*" )
+add_executable(app ${SOURCE_FILES})
+
+find_package( OpenGL REQUIRED )
+find_package( glfw3 REQUIRED )
+
+set(ADDITIONAL_LIBRARIES "")
+if(WIN32)
+set(ADDITIONAL_LIBRARIES winmm)
+endif()
+
+set(GLEW_LIBRARY "")
+if(UNIX)
+set(GLEW_LIBRARY GLEW)
+else()
+find_package( glew REQUIRED )
+set(GLEW_LIBRARY GLEW::glew)
+endif()
+
+target_link_libraries(${PROJECT_NAME} OpenGL::GL OpenGL::GLU glfw ${ADDITIONAL_LIBRARIES} ${GLEW_LIBRARY} )