Android versions 4.2 supported? - finding header files

[MarcWeber]

Trying to compile an app for an old tablet (odys iron) android 4.2 or such. I ended up with the following error messages.
So TRS_24 has android-activity as dependency and I feel like having to specify header locations but don't know exactly how.
Does Android-activity has a list of Android versions known to work ? I don't know exactly where to start looking into details.

warning: `/Users/marcweber/mw-repos/TRS_24/example/.cargo/config` is deprecated in favor of `config.toml`
note: if you need to support cargo 1.38 or earlier, you can symlink `config` to `config.toml`
   Compiling imgui-sys v0.12.0
   Compiling freetype-sys v0.19.0
   Compiling android-activity v0.6.0
warning: android-activity@0.6.0: In file included from game-activity-csrc/game-activity/GameActivity.cpp:17:
warning: android-activity@0.6.0: game-activity-csrc/game-activity/GameActivity.h:30:10: fatal error: 'android/asset_manager.h' file not found
warning: android-activity@0.6.0: #include <android/asset_manager.h>
warning: android-activity@0.6.0:          ^
warning: android-activity@0.6.0: 1 error generated.
warning: android-activity@0.6.0: ToolExecError: Command LC_ALL="C" "arm-linux-androideabi-clang++" "-O3" "-DANDROID" "-ffunction-sections" "-fdata-sections" "-fPIC" "-I" "game-activity-csrc" "-Wall" "-o" "/Users/marcweber/mw-repos/TRS_24/example/target/armv7-linux-androideabi/release/build/android-activity-4d4e30ec147b3bf5/out/9cf9d0220cd7b5c3-GameActivity.o" "-c" "game-activity-csrc/game-activity/GameActivity.cpp" with args arm-linux-androideabi-clang++ did not execute successfully (status code exit status: 1).cargo:warning=In file included from game-activity-csrc/game-activity/GameActivityEvents.cpp:17:
warning: android-activity@0.6.0: game-activity-csrc/game-activity/GameActivityEvents.h:29:10: fatal error: 'android/input.h' file not found
warning: android-activity@0.6.0: #include <android/input.h>
warning: android-activity@0.6.0:          ^
warning: android-activity@0.6.0: 1 error generated.
warning: android-activity@0.6.0: ToolExecError: Command LC_ALL="C" "arm-linux-androideabi-clang++" "-O3" "-DANDROID" "-ffunction-sections" "-fdata-sections" "-fPIC" "-I" "game-activity-csrc" "-Wall" "-o" "/Users/marcweber/mw-repos/TRS_24/example/target/armv7-linux-androideabi/release/build/android-activity-4d4e30ec147b3bf5/out/9cf9d0220cd7b5c3-GameActivityEvents.o" "-c" "game-activity-csrc/game-activity/GameActivityEvents.cpp" with args arm-linux-androideabi-clang++ did not execute successfully (status code exit status: 1).
error: failed to run custom build command for `android-activity v0.6.0`

Caused by:
  process didn't exit successfully: `/Users/marcweber/mw-repos/TRS_24/example/target/release/build/android-activity-10716154a2f35689/build-script-build` (exit status: 1)
  --- stdout
  cargo:rerun-if-changed=game-activity-csrc/game-activity/GameActivity.h
  cargo:rerun-if-changed=game-activity-csrc/game-activity/GameActivity.cpp
  cargo:rerun-if-changed=game-activity-csrc/game-activity/GameActivityEvents.h
  cargo:rerun-if-changed=game-activity-csrc/game-activity/GameActivityEvents.cpp
  cargo:rerun-if-changed=game-activity-csrc/game-activity/GameActivityLog.h
  OUT_DIR = Some(/Users/marcweber/mw-repos/TRS_24/example/target/armv7-linux-androideabi/release/build/android-activity-4d4e30ec147b3bf5/out)
  OPT_LEVEL = Some(3)
  TARGET = Some(armv7-linux-androideabi)
  HOST = Some(aarch64-apple-darwin)
  cargo:rerun-if-env-changed=CXX_armv7-linux-androideabi
  CXX_armv7-linux-androideabi = None
  cargo:rerun-if-env-changed=CXX_armv7_linux_androideabi
  CXX_armv7_linux_androideabi = None
  cargo:rerun-if-env-changed=TARGET_CXX
  TARGET_CXX = None
  cargo:rerun-if-env-changed=CXX
  CXX = None
  cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
  RUSTC_WRAPPER = None
  cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some(false)
  cargo:rerun-if-env-changed=CXXFLAGS_armv7-linux-androideabi
  CXXFLAGS_armv7-linux-androideabi = None
  cargo:rerun-if-env-changed=CXXFLAGS_armv7_linux_androideabi
  CXXFLAGS_armv7_linux_androideabi = None
  cargo:rerun-if-env-changed=TARGET_CXXFLAGS
  TARGET_CXXFLAGS = None
  cargo:rerun-if-env-changed=CXXFLAGS
  CXXFLAGS = None
  CARGO_ENCODED_RUSTFLAGS = Some()
  cargo:warning=In file included from game-activity-csrc/game-activity/GameActivity.cpp:17:
  cargo:warning=game-activity-csrc/game-activity/GameActivity.h:30:10: fatal error: 'android/asset_manager.h' file not found
  cargo:warning=#include <android/asset_manager.h>
  cargo:warning=         ^
  cargo:warning=1 error generated.
  exit status: 1
  cargo:warning=ToolExecError: Command LC_ALL="C" "arm-linux-androideabi-clang++" "-O3" "-DANDROID" "-ffunction-sections" "-fdata-sections" "-fPIC" "-I" "game-activity-csrc" "-Wall" "-o" "/Users/marcweber/mw-repos/TRS_24/example/target/armv7-linux-androideabi/release/build/android-activity-4d4e30ec147b3bf5/out/9cf9d0220cd7b5c3-GameActivity.o" "-c" "game-activity-csrc/game-activity/GameActivity.cpp" with args arm-linux-androideabi-clang++ did not execute successfully (status code exit status: 1).cargo:warning=In file included from game-activity-csrc/game-activity/GameActivityEvents.cpp:17:
  cargo:warning=game-activity-csrc/game-activity/GameActivityEvents.h:29:10: fatal error: 'android/input.h' file not found
  cargo:warning=#include <android/input.h>
  cargo:warning=         ^
  cargo:warning=1 error generated.

  exit status: 1
  cargo:warning=ToolExecError: Command LC_ALL="C" "arm-linux-androideabi-clang++" "-O3" "-DANDROID" "-ffunction-sections" "-fdata-sections" "-fPIC" "-I" "game-activity-csrc" "-Wall" "-o" "/Users/marcweber/mw-repos/TRS_24/example/target/armv7-linux-androideabi/release/build/android-activity-4d4e30ec147b3bf5/out/9cf9d0220cd7b5c3-GameActivityEvents.o" "-c" "game-activity-csrc/game-activity/GameActivityEvents.cpp" with args arm-linux-androideabi-clang++ did not execute successfully (status code exit status: 1).

  --- stderr


  error occurred in cc-rs: Command LC_ALL="C" "arm-linux-androideabi-clang++" "-O3" "-DANDROID" "-ffunction-sections" "-fdata-sections" "-fPIC" "-I" "game-activity-csrc" "-Wall" "-o" "/Users/marcweber/mw-repos/TRS_24/example/target/armv7-linux-androideabi/release/build/android-activity-4d4e30ec147b3bf5/out/9cf9d0220cd7b5c3-GameActivityEvents.o" "-c" "game-activity-csrc/game-activity/GameActivityEvents.cpp" with args arm-linux-androideabi-clang++ did not execute successfully (status code exit status: 1).


warning: build failed, waiting for other jobs to finish...
warning: freetype-sys@0.19.0: In file included from freetype2/src/autofit/autofit.c:21:
warning: freetype-sys@0.19.0: In file included from freetype2/src/autofit/ft-hb.c:27:
warning: freetype-sys@0.19.0: In file included from freetype2/include/freetype/freetype.h:24:
warning: freetype-sys@0.19.0: In file included from freetype2/include/freetype/config/ftconfig.h:42:
warning: freetype-sys@0.19.0: freetype2/include/freetype/config/ftstdlib.h:88:10: fatal error: 'string.h' file not found
warning: freetype-sys@0.19.0: #include <string.h>
warning: freetype-sys@0.19.0:          ^
warning: freetype-sys@0.19.0: 1 error generated.
warning: freetype-sys@0.19.0: ToolExecError: Command LC_ALL="C" "arm-linux-androideabi-clang++" "-O3" "-DANDROID" "-ffunction-sections" "-fdata-sections" "-fPIC" "-I" "." "-I" "freetype2/include" "-I" "freetype2/src" "-DFT2_BUILD_LIBRARY" "-o" "/Users/marcweber/mw-repos/TRS_24/example/target/armv7-linux-androideabi/release/build/freetype-sys-7cb8d15d3b471e65/out/0d80b2c4b549a911-autofit.o" "-c" "freetype2/src/autofit/autofit.c" with args arm-linux-androideabi-clang++ did not execute successfully (status code exit status: 1).cargo:warning=In file included from freetype2/src/base/ftbase.c:21:
warning: freetype-sys@0.19.0: In file included from freetype2/src/base/ftadvanc.c:19:
warning: freetype-sys@0.19.0: In file included from freetype2/include/freetype/internal/ftdebug.h:29:
warning: freetype-sys@0.19.0: In file included from freetype2/include/freetype/config/ftconfig.h:42:
warning: freetype-sys@0.19.0: freetype2/include/freetype/config/ftstdlib.h:88:10: fatal error: 'string.h' file not found
warning: freetype-sys@0.19.0: #include <string.h>
warning: freetype-sys@0.19.0:          ^
warning: freetype-sys@0.19.0: In file included from freetype2/src/base/ftbbox.c:27:
warning: freetype-sys@0.19.0: In file included from freetype2/include/freetype/internal/ftdebug.h:29:
warning: freetype-sys@0.19.0: In file included from freetype2/include/freetype/config/ftconfig.h:42:
warning: freetype-sys@0.19.0: freetype2/include/freetype/config/ftstdlib.h:88:10: fatal error: 'string.h' file not found
warning: freetype-sys@0.19.0: #include <string.h>

[MarijnS95]

You might just be missing out because Android 4.2 is API level 17 (https://developer.android.com/tools/releases/platforms), while the latest GameActivity docs state it's only backwards compatible to level 19 (Android 4.4): https://developer.android.com/games/agdk/game-activity/get-started. EDIT: Since this crate is barely maintained and never updated, the GameActivity code copy-pasted into it may be older and compatible with earlier Android versions?

But from the logs it's hard to confirm that you're using a valid tool / environment to cross-compile to Android. It seems you're using an arbitrary arm-linux-androideabi-clang++ found in PATH, without ever providing an Android-specific sysroot from the NDK, nor providing a --target flag with the right Android target API level. Perhaps consider setting these up in (target-specific) C(XX)FLAGS environment variables and/or using cargo-apk or xbuild to cross-compile your Rust project.