- Add sysroot path to environment variable 'CPPFLAGS':
When checking C preprocessor, the 'configure' script of libbacktrace uses 'CPPFLAGS' rather than 'CFLAGS' and doesn't get the correct search path. (#15758)
This check passes on Linux because the '/lib/cpp' fallback is available there.
- Introduce CMake toolchain file for Android cross compiling:
CMake needs several variables [1] to cross compile for Android.
It works (accidentally) on Linux because cmake-rs sets compilers correctly and binutils for Linux & Android are pretty much the same.
[1] https://cmake.org/cmake/help/v3.7/manual/cmake-toolchains.7.html#cross-compiling-for-android-with-the-ndk
Add C++ runtime shared object to the Android APK
<!-- Please describe your changes on the following line: -->
At the moment, the Android port requires `libc++_shared.so` to run -- this patch adds the file to the generated APK.
Part of #13154.
If you know a cleaner way to solve this issue, feel free to share it! Static linking didn't work, see the related issue.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14528)
<!-- Reviewable:end -->
Currently fonts are using incorrect metrics and the app uses the console
subsystem. This patch adds aliases so that font metrics are found and
instructs the linker to use the windows subsystem.
Add very simple Android browser page load support
I've long had this set of private patches that enables actually demoing Servo on Android without having the device connected, but they're a bit hackish due to some current limitations in our windowing toolkit library. I'm considering committing them, though, as it makes the resulting APK *actually* somewhat usable.
Thoughts / r? @mbrubeck
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="35" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/11691)
<!-- Reviewable:end -->
