Reduce minimum required CMake version to 3.2

Author: pezcode

3rdparty/CMakeLists.txt

@@ -10,9 +10,9 @@
 # for setting BGFX_CONFIG_RENDERER_OPENGL
 # need a newer version of bgfx/bigg to take effect
 
-add_compile_definitions(BGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=43)
-#add_compile_definitions(BGFX_CONFIG_RENDERER_OPENGLES_MIN_VERSION=43)
-#add_compile_definitions(BGFX_CONFIG_RENDERER_OPENGL=43)
+add_definitions(-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=43)
+#add_definitions(-DBGFX_CONFIG_RENDERER_OPENGLES_MIN_VERSION=43)
+#add_definitions(-DBGFX_CONFIG_RENDERER_OPENGL=43)
 set(BIGG_EXAMPLES OFF CACHE INTERNAL "")
 set(BGFX_BUILD_EXAMPLES OFF CACHE INTERNAL "")
 add_subdirectory(bigg)

CMakeLists.txt

@@ -1,12 +1,12 @@
-cmake_minimum_required(VERSION 3.13)
+cmake_minimum_required(VERSION 3.2)
 
 project(cluster CXX)
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-if(NOT CMAKE_BUILD_TYPE) 
+if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)
-endif(NOT CMAKE_BUILD_TYPE)
+endif()
 
 set(BUILD_SHARED_LIBS OFF)
 

README.md

@@ -80,7 +80,7 @@ A few useful resources that helped with the implementation:
 
 ## Compilation
 
-Recent [CMake](https://cmake.org/) version (>= 3.13) required.
+[CMake](https://cmake.org/) (>= 3.2) is required for building.
 
 1. Generate project files:
    ```bash

src/CMakeLists.txt

@@ -66,7 +66,14 @@ set(SHADERS
     Renderer/Shaders/util.sh
 )
 
-add_executable(Cluster ${SOURCES} ${SHADERS})
+if(MSVC)
+    # hide console window on Windows
+    # for some reason this still requires WIN32 in add_executable to work
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SUBSYSTEM:WINDOWS /ENTRY:mainCRTStartup")
+    set(PLATFORM WIN32)
+endif()
+
+add_executable(Cluster ${PLATFORM} ${SOURCES} ${SHADERS})
 target_include_directories(Cluster PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
 target_link_libraries(Cluster PRIVATE bigg IconFontCppHeaders assimp spdlog)
 target_compile_definitions(Cluster PRIVATE
@@ -94,8 +101,6 @@ if(MSVC)
     # disable macro redefinition warning
     # ideally 3rd party include folders were marked as SYSTEM so we wouldn't get these warnings
     target_compile_options(Cluster PRIVATE "/wd4005")
-    # hide console window
-    target_link_options(Cluster PRIVATE "/SUBSYSTEM:WINDOWS" "/ENTRY:mainCRTStartup")
 endif()
 
 set(SHADER_DIR "${PROJECT_BINARY_DIR}/shaders")