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# Names of libraries included in typelib files are opened by dlopen. Here we
# add the full path.
#
# This patch was provided by Luca Bruno <lucabru@src.gnome.org> for
# 'gobject-introspection' 1.40.0 in Nix.
#
# It has since been updated to work with newer versions of
# gobject-introspection.
--- a/giscanner/scannermain.py
+++ b/giscanner/scannermain.py
@@ -95,6 +95,39 @@ def get_windows_option_group(parser):
return group
+def _get_default_fallback_libpath():
+ # Newer multiple-output-optimized stdenv has an environment variable
+ # $outputLib which in turn specifies another variable which then is used as
+ # the destination for the library contents (${!outputLib}/lib).
+ store_path = os.environ.get(os.environ.get("outputLib")) if "outputLib" in os.environ else None
+ if store_path is None:
+ outputs = os.environ.get("outputs", "out").split()
+ if "lib" in outputs:
+ # For multiple output derivations let's try whether there is a $lib
+ # environment variable and use that as the base store path.
+ store_path = os.environ.get("lib")
+ elif "out" in outputs:
+ # Otherwise we have a single output derivation, so the libraries
+ # most certainly will end up in "$out/lib".
+ store_path = os.environ.get("out")
+
+ if store_path is not None:
+ # Even if we have a $lib as output, there still should be a $lib/lib
+ # directory.
+ return os.path.join(store_path, 'lib')
+ else:
+ # If we haven't found a possible scenario, let's return an empty string
+ # so that the shared library won't be prepended with a path.
+ #
+ # Note that this doesn't mean that all hope is lost, because after all
+ # we can still use --fallback-library-path to set one.
+ #
+ # Also, we're not returning None, because that would make it very
+ # difficult to disable adding fallback paths altogether using something
+ # like: --fallback-library-path=""
+ return ""
+
+
def _get_option_parser():
parser = optparse.OptionParser('%prog [options] sources',
version='%prog ' + giscanner.__version__)
@@ -205,6 +238,10 @@ match the namespace prefix.""")
parser.add_option("", "--filelist",
action="store", dest="filelist", default=[],
help="file containing headers and sources to be scanned")
+ parser.add_option("", "--fallback-library-path",
+ action="store", dest="fallback_libpath",
+ default=_get_default_fallback_libpath(),
+ help="Path to prepend to unknown shared libraries")
group = get_preprocessor_option_group(parser)
parser.add_option_group(group)
--- a/giscanner/shlibs.py
+++ b/giscanner/shlibs.py
@@ -57,6 +57,14 @@ def _ldd_library_pattern(library_name):
$""" % re.escape(library_name), re.VERBOSE)
+def _ldd_library_guix_pattern(library_name):
+ store_dir = re.escape(
+ os.environ.get("NIX_STORE", default="/gnu/store")
+ )
+ pattern = r'(%s(?:/[^/]*)+lib%s[^A-Za-z0-9_-][^\s\(\)]*)'
+ return re.compile(pattern % (store_dir, re.escape(library_name)))
+
+
# This is a what we do for non-la files. We assume that we are on an
# ELF-like system where ldd exists and the soname extracted with ldd is
# a filename that can be opened with dlopen().
@@ -106,7 +112,8 @@ def _resolve_non_libtool(options, binary, libraries):
output = output.decode("utf-8", "replace")
shlibs = resolve_from_ldd_output(libraries, output)
- return list(map(sanitize_shlib_path, shlibs))
+ fallback_libpath = options.fallback_libpath or "";
+ return list(map(lambda p: os.path.join(fallback_libpath, p), map(sanitize_shlib_path, shlibs)))
def sanitize_shlib_path(lib):
@@ -115,19 +122,18 @@ def sanitize_shlib_path(lib):
# In case we get relative paths on macOS (like @rpath) then we fall
# back to the basename as well:
# https://gitlab.gnome.org/GNOME/gobject-introspection/issues/222
- if sys.platform == "darwin":
- if not os.path.isabs(lib):
- return os.path.basename(lib)
- return lib
- else:
+
+ # Always use absolute paths if available
+ if not os.path.isabs(lib):
return os.path.basename(lib)
+ return lib
def resolve_from_ldd_output(libraries, output):
patterns = {}
for library in libraries:
if not os.path.isfile(library):
- patterns[library] = _ldd_library_pattern(library)
+ patterns[library] = (_ldd_library_pattern(library), _ldd_library_guix_pattern(library))
if len(patterns) == 0:
return []
@@ -139,8 +145,12 @@ def resolve_from_ldd_output(libraries, output):
if line.endswith(':'):
continue
for word in line.split():
- for library, pattern in patterns.items():
- m = pattern.match(word)
+ for library, (pattern, guix_pattern) in patterns.items():
+ store_dir = os.environ.get("NIX_STORE", default="/gnu/store")
+ if line.find(store_dir) != -1:
+ m = guix_pattern.match(word)
+ else:
+ m = pattern.match(word)
if m:
del patterns[library]
shlibs.append(m.group())
--- a/giscanner/utils.py
+++ b/giscanner/utils.py
@@ -111,17 +111,11 @@ def extract_libtool_shlib(la_file):
if dlname is None:
return None
- # Darwin uses absolute paths where possible; since the libtool files never
- # contain absolute paths, use the libdir field
- if platform.system() == 'Darwin':
- dlbasename = os.path.basename(dlname)
- libdir = _extract_libdir_field(la_file)
- if libdir is None:
- return dlbasename
- return libdir + '/' + dlbasename
- # From the comments in extract_libtool(), older libtools had
- # a path rather than the raw dlname
- return os.path.basename(dlname)
+ dlbasename = os.path.basename(dlname)
+ libdir = _extract_libdir_field(la_file)
+ if libdir is None:
+ return dlbasename
+ return libdir + '/' + dlbasename
def extract_libtool(la_file):
--- a/tests/scanner/test_shlibs.py
+++ b/tests/scanner/test_shlibs.py
@@ -40,6 +64,7 @@ class TestLddParser(unittest.TestCase):
self.assertEqual(
sanitize_shlib_path('/foo/bar'),
- '/foo/bar' if sys.platform == 'darwin' else 'bar')
+ # Always use an absolute filename for Guix
+ '/foo/bar')
def test_unresolved_library(self):
output = ''
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