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gst-env: Don't set DYLD_LIBRARY_PATH on macOS

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This is not actually needed because everything we build is using
@rpath already, and setting it causes dynamic linker path priority
issues with macOS internals causing *all* programs to fail to run
inside gst-env:

```
$ vim
dyld: Symbol not found: __cg_jpeg_resync_to_restart
  Referenced from: /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
  Expected in: /Users/nirbheek/projects/repos/gst-build/_build_macos/subprojects/libjpeg-turbo-2.1.0/libJPEG.dylib
 in /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
Abort trap: 6
```

In this case it is caused by libjpeg.dylib, but it can happen with
other dylibs that conflict with dylibs used by macOS internally.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-build/-/merge_requests/257>
This commit is contained in:
Nirbheek Chauhan 2021-08-24 13:53:37 +05:30
parent 80621a3f07
commit a31e9dcf43
1 changed files with 4 additions and 1 deletions
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5
gst-env.py
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@ -72,6 +72,8 @@ def stringify(o):
raise AssertionError('Object {!r} must be a string or a list'.format(o))
def prepend_env_var(env, var, value, sysroot):
if var is None:
return
if value.startswith(sysroot):
value = value[len(sysroot):]
# Try not to exceed maximum length limits for env vars on Windows
@ -275,7 +277,8 @@ def get_subprocess_env(options, gst_version):
if os.name == 'nt':
lib_path_envvar = 'PATH'
elif platform.system() == 'Darwin':
lib_path_envvar = 'DYLD_LIBRARY_PATH'
# RPATH is sufficient on macOS, and DYLD_LIBRARY_PATH can cause issues with dynamic linker path priority
lib_path_envvar = None
else:
lib_path_envvar = 'LD_LIBRARY_PATH'