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01/01: gnu: gobject-introspection: Update absolute-shlib-path.patch.


From: guix-commits
Subject: 01/01: gnu: gobject-introspection: Update absolute-shlib-path.patch.
Date: Mon, 8 Jul 2019 03:43:55 -0400 (EDT)

cbaines pushed a commit to branch core-updates
in repository guix.

commit 8747477deb765571c300d3eb9a4012a3c36cf7f7
Author: Christopher Baines <address@hidden>
Date:   Sun Jul 7 11:43:07 2019 +0100

    gnu: gobject-introspection: Update absolute-shlib-path.patch.
    
    Incorporate some changes from nixpkgs to the gobject-introspection package
    patches.  This is motivated by looking at issues with libsoup and lollypop.
    These changes mean that the share/gir-1.0/Soup-2.4.gir file within
    libsoup (and the corresponding binary typelib) references libsoup-2.4.so.1
    with an absolute filename, whereas previously, the filename wasn't absolute.
    
    With an absolute filename in the typelib, loading libsoup from lollypop 
should
    work.
    
    * gnu/packages/patches/gobject-introspection-absolute-shlib-path.patch:
    Incorporate changes from nixpkgs.
---
 ...gobject-introspection-absolute-shlib-path.patch | 141 ++++++++++++++++++++-
 1 file changed, 137 insertions(+), 4 deletions(-)

diff --git 
a/gnu/packages/patches/gobject-introspection-absolute-shlib-path.patch 
b/gnu/packages/patches/gobject-introspection-absolute-shlib-path.patch
index d00cc5a..3c0bb1c 100644
--- a/gnu/packages/patches/gobject-introspection-absolute-shlib-path.patch
+++ b/gnu/packages/patches/gobject-introspection-absolute-shlib-path.patch
@@ -2,10 +2,131 @@
 # add the full path.
 #
 # This patch was provided by Luca Bruno <address@hidden>  for 
-# 'gobject-introspection' 1.40.0 in Nix. 
---- ./giscanner/utils.py.orig  2014-08-14 22:05:05.055334080 +0200
-+++ ./giscanner/utils.py       2014-08-14 22:05:24.687497334 +0200
-@@ -110,17 +110,11 @@
+# '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 +57,12 @@ def _ldd_library_pattern(library_name):
+     $""" % re.escape(library_name), re.VERBOSE)
+ 
+ 
++def _ldd_library_guix_pattern(library_name):
++    store_dir = re.escape('/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 +145,11 @@ 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():
++                if line.find('/gnu/store') != -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
  
@@ -28,3 +149,15 @@
  
  
  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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