Has there been any update on this? I've run into this issue trying to cross-compile python for Android. I've tried 3.7.4, 3.8 and current master, both in-source and out of source builds, all ending with the modules failing to compile due to wrong paths.



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CC='/home/samuel/android/sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android26-clang' LDSHARED='/home/samuel/android/sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android26-clang -shared -Wl,--exclude-libs,libgcc.a     -Wl,--exclude-libs,libatomic.a     -static-libstdc++     -Wl,--build-id     -Wl,--warn-shared-textrel     -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -Wl,-z,noexecstack -Wl,--gc-sections      -lc++ -lm -lgcc -ldl -lc -lgcc -ldl -latomic -lm     -Wl,--exclude-libs,libgcc.a     -Wl,--exclude-libs,libatomic.a     -static-libstdc++     -Wl,--build-id     -Wl,--warn-shared-textrel     -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -Wl,-z,noexecstack -Wl,--gc-sections      -lc++ -lm -lgcc -ldl -lc -lgcc -ldl -latomic -lm  ' OPT='-DNDEBUG -g -fwrapv -O3 -Wall' 	_TCLTK_INCLUDES='' _TCLTK_LIBS='' 	_PYTHON_PROJECT_BASE=/home/samuel/android/cpython _PYTHON_HOST_PLATFORM=linux-aarch64 PYTHONPATH=/home/samuel/android/cpython/build/lib.linux-aarch64-3.7:./Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_m_linux_ python3 ./setup.py  build
running build
running build_ext
INFO: Can't locate Tcl/Tk libs and/or headers
building '_struct' extension
/home/samuel/android/sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android26-clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall --target=aarch64-none-linux-android26 --gcc-toolchain=/home/samuel/android/sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64 --sysroot=/home/samuel/android/sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -fno-addrsig -Wa,--noexecstack -Wformat -Werror=format-security -O3 -fPIE --target=aarch64-none-linux-android26 --gcc-toolchain=/home/samuel/android/sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64 --sysroot=/home/samuel/android/sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -fno-addrsig -Wa,--noexecstack -Wformat -Werror=format-security -O3 -fPIE -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -I./Include -I. -I/home/samuel/android/cpython_build/host/venv/include -I/home/samuel/android/cpython_build/host/install/include/python3.7m -c _struct.c -o build/temp.linux-aarch64-3.7/_struct.o
clang: error: no such file or directory: '_struct.c'
clang: error: no input files
...
Failed to build these modules:
_asyncio              _bisect               _blake2            
_bz2                  _codecs_cn            _codecs_hk         
_codecs_iso2022       _codecs_jp            _codecs_kr         
_codecs_tw            _contextvars          _crypt             
_csv                  _ctypes               _ctypes_test       
_datetime             _decimal              _heapq             
_json                 _lsprof               _md5               
_multibytecodec       _multiprocessing      _opcode            
_pickle               _posixsubprocess      _queue             
_random               _sha1                 _sha256            
_sha3                 _sha512               _socket            
_struct               _testbuffer           _testcapi          
_testimportmultiple   _testmultiphase       _uuid              
_xxtestfuzz           array                 audioop            
binascii              cmath                 fcntl              
grp                   math                  mmap               
ossaudiodev           parser                pyexpat            
resource              select                spwd               
syslog                termios               unicodedata        
xxlimited                                                      
...