69 lines
3.6 KiB
Markdown
69 lines
3.6 KiB
Markdown
Here are dependency-less build scripts for raylib projects.
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## Dependencies
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The scripts, as mentioned above, do not have dependencies. There's one
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exception to this however, and that is Windows, because Windows
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doesn't have a built-in C compiler. On Windows, you'll need to install
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[Visual Studio][visual-studio] or the [build tools][vs-tools]. If you
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didn't install them in the default location, write your changes around
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line 38 of [`build-windows.bat`](build-windows.bat).
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## Script customization
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First of all, the scripts have a few variables at the very top, which
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are supposed to be configured for each project separately:
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- `GAME_NAME` variable is used for the executable name.
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- `SOURCES` is a list of .c source files, divided by spaces, which are
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going to be compiled and linked with raylib to create the final
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executable. You can use wildcards, so if you have all your .c files
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in a directory called `src`, you can just set `SOURCES` to
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`../../src/*.c`. Note: the paths should be either absolute, or
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relative to `builds/platform`, hence `../../`.
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- `RAYLIB_SRC` should point to the raylib/src directory. In this case,
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it's `../../src`, but as with the `SOURCES`, if the path is
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relative, it should be relative to `temp/debug`, so it's actually
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`../../../../src`.
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## Compilation flags
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- `-Os` (`/O1` with MSVC, `-O2` with clang\*) is used for release
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builds, to save space. Since it's a good practice to make your games
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run on the slowest possible systems, only a few games would benefit
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from additional runtime performance on almost all systems. Other
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flags: `-flto` (`/GL` and `/LTCG` for MSVC) in release builds, `-O0
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-g` (`/Od /Zi` for MSVC) in debug builds.
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- `-Wall -Wextra -Wpedantic` (`/Wall` for MSVC) are used for warnings.
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\* Clang 7.0.1 seems to have problems compiling with `-flto` and `-Os`
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enabled at the same time, so `-Os` is replaced with `-O2` for clang.
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## Command line arguments
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The build scripts accept some flags, which can be given either one at
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a time (`-d -c -r`) or in bunches (`-dcr`). Here's a description of
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all of the flags.
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- `-h` Describes all the flags, and a few example commands
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- `-d` Faster builds that have debug symbols, and enable warnings
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- `-u` Run upx\* on the executable after compilation (before -r)
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- `-r` Run the executable after compilation
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- `-c` Remove the temp/(debug|release) directory, ie. full recompile
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- `-q` Suppress this script's informational prints
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- `-qq` Suppress all prints, complete silence
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- `-v` cl.exe normally prints out a lot of superficial information, as
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well as the MSVC build environment activation scripts, but these are
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mostly suppressed by default. If you do want to see everything, use
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this flag.
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\* This is mostly here to make building simple "shipping" versions
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easier, and it's a very small bit in the build scripts. The option
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requires that you have upx installed and on your path, of course.
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#### Examples
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| What the command does | Command |
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|-------------------------------------------------------------|---------------------------|
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| Build a release build, on Windows | `build-windows.bat` |
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| Build a release build, full recompile, on Linux | `./build-linux.sh -c` |
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| Build a debug build and run, on macOS | `./build-osx.sh -d -r` |
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| Build in debug, run, don't print at all, on Linux with `sh` | `sh build-linux.sh -drqq` |
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[visual-studio]: https://visualstudio.microsoft.com/downloads/#visual-studio-community-2017
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[vs-tools]: https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2017
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