From 5de624b759fbd0cc253145ceee46f094d7bea0d7 Mon Sep 17 00:00:00 2001
From: Blaxar Waldarax <blaxar.waldarax@gmail.com>
Date: Sun, 18 Dec 2022 15:54:25 +0100
Subject: [PATCH] Add CMake support to the project

---
 CMakeLists.txt | 14 ++++++++++++++
 README.md      | 27 +++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..03b1cb9
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.0)
+project(img2tim LANGUAGES CXX)
+
+find_library(freeimage_lib NAMES FreeImage freeimage)
+find_path(freeimage_inc NAMES FreeImage.h freeimage.h)
+
+if(freeimage_lib STREQUAL "freeimage_lib-NOTFOUND" OR
+  freeimage_inc STREQUAL "freeimage_inc-NOTFOUND")
+  message(FATAL_ERROR "Could not find FreeImage library on your system")
+endif()
+
+add_executable(img2tim tim.cpp main.cpp)
+target_include_directories(img2tim PUBLIC "${freeimage_inc}" "${PROJECT_SOURCE_DIR}")
+target_link_libraries(img2tim "${freeimage_lib}")
diff --git a/README.md b/README.md
index edf5ef9..15a3c62 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,33 @@ The latest precompiled Win32 binary of this program can be downloaded here:
 Previous versions:
 [img2tim_(v0.60).zip](http://lameguy64.github.io/img2tim/img2tim_(v0.60).zip)
 
+## Building
+
+You can build the `img2tim` binary executable using either _Code Blocks_ or _CMake_ right away as long as you have the _FreeImage_ library installed on your system (and, of course, either _Code Blocks_ or _CMake_ as well).
+
+### Using Code Blocks
+
+Open the already-provided `img2tim.cbp` file in _CodeBlocks_, assuming that the editor is already properly configured on your side: you should be able to build everything from there.
+
+### Using CMake
+
+Open a bash terminal, navigate to the root of the project and run the following command:
+`mkdir -p build && cd build && cmake -S ..`
+This will create a `build/` folder, then _CMake_ will generate the build files in it.
+You will be notified in case of failure if, for example, the _FreeImage_ library could not be found.
+
+Then, assuming the default _CMake_ generator was targeting _make_: just run `make` to build the program.
+If it was targeting _ninja_ instead: run `ninja`.
+
+At the end of it: the `img2tim` executable (with `.exe` extension on Windows) will be ready in the `build/` folder.
+
+#### Custom CMake generator
+
+You can select which generator you prefer by using the `-G` option with `cmake`, you can even generate a whole _Code Blocks_ project file from it, for example:
+`cmake -G "CodeBlocks - Unix Makefiles" -B build` will produce a `img2tim.cbp` file in `build/`, which you can open with _Code Blocks_ (and it will use `make` behind the curtains to build the project).
+
+To see the list of all available generators on your system: just run `cmake --help`.
+
 ## Changelog
 **Version 0.75**
 * Fixed a bug where a false error message is thrown when converting 4-bit images with -bpp 4.