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Android: sync NDK r29 / min API 25 / build-tools 37 with apothecary - #8575

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Android: sync NDK r29 / min API 25 / build-tools 37 with apothecary#8575
danoli3 wants to merge 1 commit into
openframeworks:masterfrom
danoli3:android-sync-apothecary

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@danoli3 danoli3 commented Oct 8, 2026 •
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Android toolchain update

Updates the openFrameworks Android setup so OF core, project templates, CI, and Apothecary all use the same Android toolchain.

Main changes:

  • NDK → 29.0.14206865 everywhere
  • Minimum Android API → 25
  • Android Build Tools → 37.0.0
  • CI now uses the same exact NDK/API versions as local builds.

Build script improvements:

  • cmake.sh now uses the requested NDK version, rather than just picking the newest installed NDK.
  • Gives a useful error if that NDK isn’t installed.
  • Supports ANDROID_HOME / ANDROID_SDK_ROOT correctly on macOS.
  • Defaults to API 25.
  • Avoids accidentally selecting broken/half-installed NDKs.

Apple Silicon fix:

  • Android’s NDK doesn’t provide a separate darwin-arm64 toolchain directory.
  • OF now correctly falls back to the universal darwin-x86_64 tools.
  • This fixes CMake Android builds on Apple Silicon Macs.

Tested:

  • Core builds successfully on Apple Silicon with NDK 29.
  • Correctly ignores a broken NDK 30 installation.
  • Android template project builds successfully.
  • App installs and runs on an Android 14 ARM64 emulator.
  • GL test app passes.

@danoli3
Android: sync NDK / API / build-tools with apothecary
7ed5116 
Match apothecary's Android CI (build-android.yml, android_configure.sh)
so the core, the template and the prebuilt libs use the same toolchain:

- NDK r29 29.0.14206865 (template + core gradle ndkVersion, cmake.sh,
  of.yml env); previously 28.2 in gradle, "27" / newest folder in
  cmake.sh and the runner's latest NDK in CI
- min API 25 (template was 24, core gradle and cmake.sh were 34, so the
  core wouldn't load below Android 14)
- build-tools 37.0.0 (was 35.0.0)
- cmake.sh: use the pinned $NDK under the SDK (or ANDROID_NDK_ROOT /
  ANDROID_NDK_HOME) instead of silently taking the newest ndk folder,
  which also picked up half-installed NDKs; ANDROID_PLATFORM follows
  ANDROID_API; honour ANDROID_HOME / ANDROID_SDK_ROOT on macOS
- android.toolchain.cmake: NDKs ship only darwin-x86_64 (universal) /
  linux-x86_64, so fall back to the x86_64 prebuilt when the arm64 host
  folder doesn't exist (failed on Apple silicon before)
@danoli3 danoli3 mentioned this pull request Oct 8, 2026
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danoli3 added a commit to danoli3/openFrameworks that referenced this pull request Oct 8, 2026
@danoli3
Retest screenshots for openframeworks#8533 stacked on openframeworks#…
99060cb 
…8575
@danoli3

danoli3 commented Oct 8, 2026

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#8533 (OpenGLES 3.1) is now stacked on this PR and was fully retested on top of it: macOS GL 2.1–4.1, iOS ES 1.1/2.0/3.0, emscripten WebGL 1/2, and Android ES 1.1/2.0/3.0/3.1 built with this PR's cmake.sh (NDK 29.0.14206865, no overrides) and template settings (minSdk 25, build-tools 37). Results: #8533

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