Previously, the libc paths file `android-libc.txt` was written to
the folder from which the user ran `zig build`. This caused
problems when using raylib as a dependency in other zig
projects, since raylib is not built in the project root, but the
`android-libc.txt` file was still generated in the project root. The file
should now be generated in .zig-cache, which should fix the isssue (and
leave the project root folder cleaner).

Added an Android target to the zig build script.
This allows a user to easily build with only Android-supported
libraries.
Library paths are automatically inferred as much as possible.

It looks like raylib doesn't require rglfw.c if you're using the RGFW
backend.  I'm guessing the same is true for SDL but I haven't tested.
Excluding this one file brings the raylib library down from 6.9 MB to
6.3 MB for RGFW.

However, one of the examples requires the symbols from rglfw.c,
to accomodate this I added a function that will check whether raylib has
already included rglfw and if not include it for that one example.

Removes the second build.zig in the examples directory and incorporates it
into the main build.zig. This gives the zig build system the data needed to
know if the raylib library needs to be rebuilt when running any example.

Co-authored-by: Johannes Rønning <johannes@picterus.com>

Signed-off-by: Per Hallsmark <per.hallsmark@bitjuggler.se>

Is now possible to switch platform

Is now possible to diable raudio, rmodels, and so on

Made getOptions public so it can be used for zig wrappers

function

- addRaylib just duplicates what adding raylib as dependency already does
  so it do not needs to exist
- move raygui build to standard build process when flag is enabled. this
  works correctly when using raylib as dependency and having raygui as
  dependency as well. problem with previous approach was that raygui was in
  options but it was doing nothing because you had to also use addRaygui for
  it to be effective

Signed-off-by: Tomas Slusny <slusnucky@gmail.com>

- Add xcode_frameworks when cross compiling for mac (ref:
https://github.com/hexops/mach/blob/main/build.zig)
- Add emsdk when cross compiling for wasm (ref:
https://github.com/floooh/sokol-zig/blob/master/build.zig)

Signed-off-by: Tomas Slusny <slusnucky@gmail.com>

* build.zig: Move `src/build.zig` to `build.zig`

* build.zig: Remove uses of `@src`

* build.zig: Update entry point

* build.zig: Fix `@src` logic

* build.zig: Clarify build error

* build.zig: Add option for enabling `raygui`

* build.zig: Expose `Options` type

* Remove support for 0.11.0, and make build script more idiomatic
+ remove all 0.11.0 compatibility functions
+ remove most LazyPath .path variants
  + I didn't touch emscripten, I don't know if its relative or absolute
+ change all absolute paths to use .cwd_relative
+ only use the builder allocator
+ have local dependencies use the package manager
+ make adding raygui more flexible
+ use zig-cache for generated wayland files

* Remove support for 0.11.0 in examples/build.zig

* update examples further and add clarifying comment on addRaygui

* fix local dependency breakage

* revert accidental change in include path

* update build.zig to 0.12.0-dev.2139 and add shared lib option

* add no-sanitize workarounds

* update build.zig for latest zig 0.12.0dev while still allowing 0.11.0

* update examples/build.zig and add nicer message for type mismatch

This reverts commit 540ad99442.

* update build.zig for zig 0.11.0

* fix build.zig in examples to install executable correctly

* discard build.zig, only use src/build.zig, to avoid annoying zig-out path problem

* update zig version note

* Revert "Fixed broken build.zig files. Now works with latest stable compiler (as of commit, latest is 0.10.1) (#3045)"

This reverts commit de748dfffe so that zig
build script works with master branch of zig.

* Added a note to build.zig files that denotes what version of zig they have been tested with.

* Standardised the note in the build.zig files

Co-authored-by: Talha Qamar <qamartalha@proton.me>

also, adds package manager support