build python pkgs on M1 Apple Silicon

build grpcio on M1 Apple Silicon

export GRPC_PYTHON_BUILD_SYSTEM_OPENSSL=1
export GRPC_PYTHON_BUILD_SYSTEM_ZLIB=1
export CFLAGS="-I/opt/homebrew/opt/openssl/include"
export LDFLAGS="-L/opt/homebrew/opt/openssl/lib"
python setup.py bdist
python setup.py install

build llvmlite on M1 Apple Silicon

# build special llvm@9, SEE https://github.com/nightsailer/homebrew-brew
brew install --build-from-source llvm@9
# py3
LLVM_CONFIG="$(brew --prefix llvm@9)/bin/llvm-config" LDFLAGS="-L$(brew --prefix llvm@9)/lib" CPPFLAGS="-I$(brew --prefix llvm@9)/include" pip install llvmlite

# py2
# If build llvm@9 sucess
LLVM_CONFIG="$(brew --prefix llvm@9)/bin/llvm-config" LDFLAGS="-L$(brew --prefix llvm@9)/lib" CPPFLAGS="-I$(brew --prefix llvm@9)/include" pip install llvmlite==0.31.0

# FALLBACK
#arch --arch x86_64 pip install llvmlite==0.31.0


# updated.

Apply the following modification to the source of LLVM 9.0.1.

*** llvm-project-llvmorg-9.0.1/llvm/include/llvm/ADT/Triple.h	Thu Dec 12 04:15:30 2019
--- llvm-project-llvmorg-9.0.1rev/llvm/include/llvm/ADT/Triple.h	Sun May 16 11:49:49 2021
***************
*** 45,50 ****
--- 45,51 ----
    enum ArchType {
      UnknownArch,
  
+     arm64,
      arm,            // ARM (little endian): arm, armv.*, xscale
      armeb,          // ARM (big endian): armeb
      aarch64,        // AArch64 (little endian): aarch64
*** llvm-project-llvmorg-9.0.1/llvm/lib/Support/Triple.cpp	Thu Dec 12 04:15:30 2019
--- llvm-project-llvmorg-9.0.1rev/llvm/lib/Support/Triple.cpp	Sun May 16 11:49:59 2021
***************
*** 1384,1389 ****
--- 1384,1390 ----
      T.setArch(UnknownArch);
      break;
  
+   case Triple::arm64:
    case Triple::aarch64:
    case Triple::aarch64_be:
    case Triple::bpfel:

Configure, make and install LLVM 9.0.1.

% mkdir build-arm64
% cd build-arm64
% cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/somewhere/in/the/world -DLLVM_HOST_TRIPLE=arm64-apple-darwin20.3.0 -DLLVM_TARGETS_TO_BUILD="AArm64" ../llvm
% make -j4
% make install

Install llvmlite.

% env LLVM_CONFIG=/somewhere/in/the/world/bin/llvm-config pip3 install llvmlite

install numpy on M1 Apple Silicon

OPENBLAS="$(brew --prefix openblas)" pip install numpy

install pandas with py2 and py3 on M1 Apple Silicon

pip install cython
# for py3
tar zxvf pandans-1.2.3.tar.gz
cd pandas-1.2.3
python setup.py bdist
python setup install

# for py2 with pandas 0.24.2
# Xcode 12 treats implicit function declarations as an error, rather than a warning
# here disable this behavior
CFLAGS='-Wno-implicit-function-declaration' pip install pandas

install python-snappy on M1

brew install snappy
CFLAGS="-I $(brew --prefix snappy)/include" pip LDFLAGS="-L$(brew --prefix snappy)/lib" install python-snappy