2 files changed, 16 insertions, 3 deletions
diff --git a/mesonbuild/scripts/meson_exe.py b/mesonbuild/scripts/meson_exe.py
index 5c5c317..643e1af 100644
--- a/mesonbuild/scripts/meson_exe.py
+++ b/mesonbuild/scripts/meson_exe.py
@@ -29,8 +29,12 @@ def is_windows():
     platname = platform.system().lower()
     return platname == 'windows' or 'mingw' in platname
 
+def is_cygwin():
+    platname = platform.system().lower()
+    return 'cygwin' in platname
+
 def run_with_mono(fname):
-    if fname.endswith('.exe') and not is_windows():
+    if fname.endswith('.exe') and not (is_windows() or is_cygwin()):
         return True
     return False
 
diff --git a/mesonbuild/scripts/meson_install.py b/mesonbuild/scripts/meson_install.py
index 8fb9e04..e172032 100644
--- a/mesonbuild/scripts/meson_install.py
+++ b/mesonbuild/scripts/meson_install.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import sys, pickle, os, shutil, subprocess, gzip, platform
+import sys, pickle, os, shutil, subprocess, gzip, platform, errno
 from glob import glob
 from . import depfixer
 from . import destdir_join
@@ -34,6 +34,15 @@ def set_mode(path, mode):
         except PermissionError as e:
             msg = '{!r}: Unable to set owner {!r} and group {!r}: {}, ignoring...'
             print(msg.format(path, mode.owner, mode.group, e.strerror))
+        except LookupError as e:
+            msg = '{!r}: Non-existent owner {!r} or group {!r}: ignoring...'
+            print(msg.format(path, mode.owner, mode.group))
+        except OSError as e:
+            if e.errno == errno.EINVAL:
+                msg = '{!r}: Non-existent numeric owner {!r} or group {!r}: ignoring...'
+                print(msg.format(path, mode.owner, mode.group))
+            else:
+                raise
     # Must set permissions *after* setting owner/group otherwise the
     # setuid/setgid bits will get wiped by chmod
     # NOTE: On Windows you can set read/write perms; the rest are ignored
@@ -193,7 +202,7 @@ def run_install_script(d):
 
 def is_elf_platform():
     platname = platform.system().lower()
-    if platname == 'darwin' or platname == 'windows':
+    if platname == 'darwin' or platname == 'windows' or platname == 'cygwin':
         return False
     return True