Cmake
From wikinotes
CMake is a cross-platform, and compiler agnostic build-system.
Instead of a platform-native buildfile, cmake provides a scripting language to generate a platform-native buildfile, then run it.
For example, cmake might build a Makefile for gcc/clang, or it might make a VisualStudio buildfile, or an XCode buildfile etc.
Usage
- Build Instructions are written to
CMakeLists.txt.- The Buildfile is generated
- The compiler reads the Buildfile, and compiles the project.
Building with CMake
building the build-instructions
# from your directory containing CMakeLists.txt.. mkdir build cd build cmake .. # build native compilation instructions # now using your native compiler (in this example gcc or clang) # use the generated makefile to compile your project. # (this process will vary widely depending on the platform you are compiling on) make # compile project using cmake-generated Makefile make clean # delete the temporary build directory, and (re)build the project from scratch make install # install files from temporary build directory into the host system make clean install # you can combine arguments to perform multiple steps at onceCMakeLists.txt
The following example is for a hypothetical C project:
- it comprises of 2x files: main.c and utils.c
- it gets compiled into 1x executable: myproject(.exe)
CMakeLists.txt
# ============ # Package Info # ============ cmake_minimum_required(VERSION 2.8) project( "myproject" DESCRIPTION "My project that does something" VERSION 1.0.0 ) # ========== # Build Info # ========== add_executable( build/myproject main.c utils.c ) # ============ # Install Info # ============ install( PROGRAMS build/myproject DESTINATION bin )
Target Platforms
cmake unix cmake windows cmake macos
Syntax
cmake basics cmake datatypes cmake conditionals cmake expressions cmake operators cmake loops cmake macros cmake filesystem cmake general utilities cmake compile targets
