package:
  name: openblas
  version: 0.3.23

source:
  sha256: 5d9491d07168a5d00116cdc068a40022c3455bf9293c7cb86a65b1054d7e5114
  url: https://github.com/xianyi/OpenBLAS/releases/download/v0.3.23/OpenBLAS-0.3.23.tar.gz
  patches:
    - patches/0001-Add-Wno-return-type-flag.patch
    - patches/0002-Align-xerbla_array-signature-with-scipy-expectation.patch

build:
  type: shared_library
  script: |
    # seems like .zip does not maintain executable flags, need to reset these
    chmod u+x c_check
    chmod u+x f_check
    chmod u+x exports/gensymbol
    # Replace void returns by int returns
    sed -ri 's/void(\s+)BLASFUNC/int\1BLASFUNC/g' common_interface.h
    sed -ri 's/void(\s+)cblas_/int\1cblas_/g' cblas.h ctest/*.c
    sed -ri 's/void(\s+)(C?NAME)/int\1\2/g' interface/*.c
    sed -ri 's/((extern)?.+) void ([a-z0-9]+_)/\1\2 int \3/g' lapack-netlib/SRC/*.c \
        lapack-netlib/SRC/DEPRECATED/*.c
    # For some functions (mostly handling complex I think) f2c actually
    # generate a function that returns void so I need to revert the void to int
    # change the previous line does.
    sed -ri 's@int ([cz](dotc|dotu|ladiv))@void \1@g' lapack-netlib/SRC/*.c\
        lapack-netlib/SRC/DEPRECATED/*.c

    make libs shared CC=emcc HOSTCC=gcc TARGET=RISCV64_GENERIC NOFORTRAN=1 NO_LAPACKE=1 \
        USE_THREAD=0 LDFLAGS="${SIDE_MODULE_LDFLAGS}"
    mkdir -p dist
    # Add libf2c symbols to libopenblas.so
    emcc ${WASM_LIBRARY_DIR}/lib/libf2c.a libopenblas.a ${SIDE_MODULE_LDFLAGS} \
        -o libopenblas.so

    cp libopenblas.so dist
    mkdir -p ${WASM_LIBRARY_DIR}/lib
    cp dist/libopenblas.so ${WASM_LIBRARY_DIR}/lib

requirements:
  host:
    - libf2c