tjh.dev
1commit 0435bc2577d4b18f54b78b2f5185abb2b2005982
2Author: Alexander V. Nikolaev <avn@avnik.info>
3Date: Sat Feb 6 08:09:06 2016 +0200
4
5 Patch dlopen() to allow direct paths to all required libs
6
7 This patch is NixOS specific
8
9diff --git a/cairocffi/__init__.py b/cairocffi/__init__.py
10index 6061973..3538a58 100644
11--- a/cairocffi/__init__.py
12+++ b/cairocffi/__init__.py
13@@ -21,19 +21,22 @@ VERSION = __version__ = (Path(__file__).parent / 'VERSION').read_text().strip()
14 version = '1.16.0'
15 version_info = (1, 16, 0)
16
17+# Use hardcoded soname, because ctypes.util use gcc/objdump which shouldn't be required for runtime
18+_LIBS = {
19+ 'cairo': '@cairo@/lib/libcairo@ext@',
20+ 'glib-2.0': '@glib@/lib/libglib-2.0@ext@',
21+ 'gobject-2.0': '@glib@/lib/libgobject-2.0@ext@',
22+ 'gdk_pixbuf-2.0': '@gdk_pixbuf@/lib/libgdk_pixbuf-2.0@ext@',
23+}
24
25-def dlopen(ffi, *names):
26+def dlopen(ffi, name, *names):
27 """Try various names for the same library, for different platforms."""
28- for name in names:
29- for lib_name in (name, 'lib' + name):
30- try:
31- path = ctypes.util.find_library(lib_name)
32- lib = ffi.dlopen(path or lib_name)
33- if lib:
34- return lib
35- except OSError:
36- pass
37- raise OSError("dlopen() failed to load a library: %s" % ' / '.join(names))
38+ path = _LIBS.get(name, None)
39+ if path:
40+ lib = ffi.dlopen(path)
41+ if lib:
42+ return lib
43+ raise OSError("dlopen() failed to load a library: %s as %s" % (name, path))
44
45
46 cairo = dlopen(ffi, 'cairo', 'cairo-2', 'cairo-gobject-2', 'cairo.so.2')