zstd: hack include order to ensure that our zstd.h is found
If the regular Python CFLAGS include directories that already have the
zstd headers available, a different and possible incompatible version
can be picked up otherwise. Sadly, it seems like Python has no easy way
to prefix flags before the rest.
--- a/contrib/python-zstandard/setup_zstd.py Thu May 18 17:07:43 2023 -0700
+++ b/contrib/python-zstandard/setup_zstd.py Mon Feb 21 14:44:22 2022 +0100
@@ -145,8 +145,16 @@
include_dirs = set([os.path.join(actual_root, d) for d in ext_includes])
if not system_zstd:
- include_dirs.update(
- [os.path.join(actual_root, d) for d in zstd_includes]
+ from distutils import sysconfig
+ from shlex import quote
+
+ includes = []
+ for incdir in [os.path.join(actual_root, d) for d in zstd_includes]:
+ includes.append('-I' + quote(incdir))
+ include_dirs.add(incdir)
+ config_vars = sysconfig.get_config_vars()
+ config_vars['CFLAGS'] = ' '.join(
+ includes + [config_vars.get('CFLAGS', '')]
)
if support_legacy:
include_dirs.update(