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setup.py: MSYS2 workaround: build dynamic secp256k1 extension mod

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The MMGen Project 2023-11-13 11:17:29 +00:00
commit 3e1db1fb14
Signed by: mmgen
GPG key ID: 3F8B1861E32B7DA2
2 changed files with 20 additions and 2 deletions
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setup.py
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@ -8,6 +8,10 @@
# https://github.com/mmgen/mmgen
# https://gitlab.com/mmgen/mmgen
# MSYS2 Note (2023-10-26):
# mingw-w64-ucrt-x86_64-python package is missing static lib, so we must build dynamic extmod
# linked to installed libsecp256k1
import os,platform
from pathlib import Path
from subprocess import run,PIPE
@ -22,10 +26,19 @@ home = Path(os.environ['HOME'])
cache_path = home.joinpath('.cache','mmgen')
src_path = home.joinpath('.cache','mmgen','secp256k1')
lib_file = src_path.joinpath('.libs', 'libsecp256k1.a')
if have_msys2:
root = Path().resolve().anchor
installed_lib_file = Path(root, 'msys64', 'ucrt64', 'lib', 'libsecp256k1.dll.a')
lib_file = src_path.joinpath('.libs', 'libsecp256k1.dll.a')
else:
installed_lib_file = None
lib_file = src_path.joinpath('.libs', 'libsecp256k1.a')
def build_libsecp256k1():
if installed_lib_file and installed_lib_file.exists(): # see ‘MSYS2 Note’ above
return
def fix_broken_aclocal_path():
os.environ['ACLOCAL_PATH'] = '/C/msys64/ucrt64/share/aclocal:/C/msys64/usr/share/aclocal'
@ -57,6 +70,9 @@ def build_libsecp256k1():
print('Executing {}'.format(' '.join(cmd)))
run(cmd,check=True,cwd=src_path)
if installed_lib_file and not installed_lib_file.exists(): # see ‘MSYS2 Note’ above
run(['mingw32-make','install','MAKE=mingw32-make'],check=True,cwd=src_path)
class my_build_ext(build_ext):
def build_extension(self,ext):
build_libsecp256k1()
@ -70,5 +86,7 @@ setup(
libraries = ['gmp'] if have_msys2 else [],
include_dirs = [str(src_path.joinpath('include'))],
extra_objects = [str(lib_file)],
extra_compile_args = ['-shared'] if have_msys2 else [],
extra_link_args = ['-shared'] if have_msys2 else [],
)]
)