[compile error] No member name fallocate in global namespace

Trying to cross build PCL for android and got the error below:

In file included from /home/username/.conan/data/pcl/1.11.0/zhijia/testing/build/9623c23234268deacc3642c6272978d18ec71295/source_subfolder/io/include/pcl/io/impl/pcd_io.hpp:49:
/home/username/.conan/data/pcl/1.11.0/zhijia/testing/build/9623c23234268deacc3642c6272978d18ec71295/source_subfolder/io/include/pcl/io/low_level_io.h:172:13: error: no member named 'fallocate' in the global namespace
      if (::fallocate(fd, 0, 0, length) == 0)
          ~~^

To Reproduce
PCL 1.11.0, using Conan for cross build
all dependencies are solved and then run Command below gives the above error
cmake --build '/home/username/.conan/data/pcl/1.11.0/zhijia/testing/build/9623c23234268deacc3642c6272978d18ec71295/build_subfolder' '--' '-j12'

Your Environment (please complete the following information):

• OS: [ Ubuntu 18.04]
• Compiler: [ GCC 9.3]
• PCL Version e.g. 1.11.0
  Conan profile file used
  include(default)
  target_host=aarch64-linux-android
  api_level=21
  [settings]
  arch=armv8
  build_type=Release
  compiler=clang
  compiler.libcxx=libc++
  compiler.version=9
  os=Android
  os.api_level=$api_level
  [build_requires]
  [options]
  [env]
  PATH=[$android_ndk/toolchains/llvm/prebuilt/linux-x86_64/bin]
  CHOST=$target_host
  AR=$target_host-ar
  AS=$target_host-as
  RANLIB=$target_host-ranlib
  CC=$target_host$api_level-clang
  CXX=$target_host$api_level-clang++
  LD=$target_host-ld
  STRIP=$target_host-strip
  CONAN_MAKE_PROGRAM=$android_ndk/prebuilt/linux-x86_64/bin/make
  CONAN_CMAKE_TOOLCHAIN_FILE=$android_ndk/build/cmake/android.toolchain.cmake

If PCL was compiled from source or failure in compiling PCL itself:

• GPU, Kinfu, CUDA enabled? No
• List and Version of dependencies used
  boost/1.72.0
  eigen/3.3.7
  flann/1.9.1

Start in io/include/pcl/io/low_level_io.h at line 172 and inspect the use of ::fallocate during the Android cross-build. Reproduce the failure with the provided Conan profile and CMake build command, then verify that the Android build no longer reports the missing global member while preserving the existing behavior on supported platforms.