tildefriends/docs/building.md

# How to build Tilde Friends

> Disclaimer: this documentation has been written by a Linux user and has not been reviewed by other people on other platforms. The procedure may vary slightly depending on your operating system.

Builds **on** Linux (`x86_64` and `aarch64`), MacOS, OpenBSD, and Haiku.

Builds **for** all of those host platforms plus `mingw64`, iOS, and android.

Dependencies:

- `openssl` (`libssl-dev`, in debian-speak)

Dependencies for Android:

- TODO

Dependencies for iOS:

- TODO

Dependencies for Windows:

- TODO

> All other dependencies are kept up to date as git submodules.

1. Clone the repository with the submodules: `git clone --recursive https://dev.tildefriends.net/cory/tildefriends.git`

2. Run `make -j $(nproc) debug` or `make -j $(nproc) release`

If you're unsure whether you should choose `debug` or `release`, stick to `release`.

> `-j $(nproc)` will start a compiler for every CPU thread, which will dramatically reduce the time needed to compile Tilde Friends.

An executable will be generated in a subdirectory of `out/`

It's possible to build for Android, iOS, and Windows on Linux, if you have the right dependencies in the right places. Run `make -j $(nproc) windebug winrelease iosdebug-ipa iosrelease-ipa release-apk`

To build in docker, `docker build .`

<!-- On NixOS: TODO -->
<!-- Add shell.nix and nix derivs first -->

Now that you have a binary, head over to <running.md>.

## Troubleshooting

### The compiler throws a warning and I can't build the binary

You can choose to tell the compiler to ignore warnings.
Open `GNUMakefile` and edit the CFLAGS environment variable around line 50.

For example given this error:

```text
src/http.c: In function 'tf_http_get_cookie':
src/http.c:1089:128: error: check of 'name' for NULL after already dereferencing it [-Werror=analyzer-deref-before-check]
```

Add:

```diff
CFLAGS += \
	-std=gnu11 \
	-Wall \
	-Wextra \
	-Wno-unused-parameter \
+	-Wno-analyzer-deref-before-check \
	-MMD \
	-MP \
	-ffunction-sections \
	-fdata-sections \
	-fno-exceptions \
	-g
```

Now the compiler will ignore this error and *should* continue building anyways.
Note this is a dirty hack to get Tilde Friends to compile and you should not propose to keep this flag on. Instead, open a bug report.