--- /dev/null
+From a02076fe916ade6c3f78f6d35072ec53482e9446 Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Wed, 3 Jan 2018 17:02:01 +0200
+Subject: [PATCH] giscanner: add a --lib-dirs-envvar option
+
+By default LD_LIBRARY_PATH is set to the list of target library paths;
+this breaks down in cross-compilation environment, as we need to run a
+native emulation wrapper rather than the target binary itself. This patch
+allows exporting those paths to a different environment variable
+which can be picked up and used by the wrapper.
+
+Upstream-Status: Pending
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+---
+ giscanner/ccompiler.py | 6 ++++--
+ giscanner/dumper.py | 3 ++-
+ giscanner/scannermain.py | 3 +++
+ 3 files changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/giscanner/ccompiler.py b/giscanner/ccompiler.py
+index 29de0ee..e969337 100644
+--- a/giscanner/ccompiler.py
++++ b/giscanner/ccompiler.py
+@@ -109,14 +109,16 @@ class CCompiler(object):
+
+ self._cflags_no_deprecation_warnings = "-Wno-deprecated-declarations"
+
+- def get_internal_link_flags(self, args, libtool, libraries, extra_libraries, libpaths):
++ def get_internal_link_flags(self, args, libtool, libraries, extra_libraries, libpaths, lib_dirs_envvar):
+ # An "internal" link is where the library to be introspected
+ # is being built in the current directory.
+
+ runtime_path_envvar = []
+ runtime_paths = []
+
+- if self.check_is_msvc():
++ if lib_dirs_envvar:
++ runtime_path_envvar = [lib_dirs_envvar]
++ elif self.check_is_msvc():
+ runtime_path_envvar = ['LIB', 'PATH']
+ else:
+ runtime_path_envvar = ['LD_LIBRARY_PATH']
+diff --git a/giscanner/dumper.py b/giscanner/dumper.py
+index 7f77bd2..db96df6 100644
+--- a/giscanner/dumper.py
++++ b/giscanner/dumper.py
+@@ -259,7 +259,8 @@ class DumpCompiler(object):
+ libtool,
+ self._options.libraries,
+ self._options.extra_libraries,
+- self._options.library_paths)
++ self._options.library_paths,
++ self._options.lib_dirs_envvar)
+ args.extend(pkg_config_libs)
+
+ else:
+diff --git a/giscanner/scannermain.py b/giscanner/scannermain.py
+index 38a45c1..b603850 100755
+--- a/giscanner/scannermain.py
++++ b/giscanner/scannermain.py
+@@ -130,6 +130,9 @@ def _get_option_parser():
+ parser.add_option("", "--use-ldd-wrapper",
+ action="store", dest="ldd_wrapper", default=None,
+ help="wrapper to use instead of ldd (useful when cross-compiling)")
++ parser.add_option("", "--lib-dirs-envvar",
++ action="store", dest="lib_dirs_envvar", default=None,
++ help="environment variable to write a list of library directories to (for running the transient binary), instead of standard LD_LIBRARY_PATH")
+ parser.add_option("", "--program-arg",
+ action="append", dest="program_args", default=[],
+ help="extra arguments to program")
+--
+2.15.1
+
