[SOLVED] Regression: libcap-ng failed to build againt swig 4.2.0

lucabon · 01-04-2024, 08:04 AM

In swig 4.2.0 the deprecated feature %except was removed, but libcap-ng still uses it.

The following patch could be used to fix the bug/regression:

Code:

--- libcap-ng-0.8.4.old/bindings/src/capng_swig.i       2023-12-20 16:23:01.000000000 +0100
+++ libcap-ng-0.8.4/bindings/src/capng_swig.i   2024-01-04 12:53:12.131746399 +0100
@@ -30,7 +30,16 @@
 
 %varargs(16, signed capability = 0) capng_updatev;
 
-%except(python) {
+%exception capng_clear {
+  $action
+}
+%exception capng_fill {
+  $action
+}
+%exception capng_setpid {
+  $action
+}
+%exception {
   $action
   if (result < 0) {
     PyErr_SetFromErrno(PyExc_OSError);

An issue is already opened in libcap-ng repository: https://github.com/stevegrubb/libcap-ng/issues/48

lucabon · 01-04-2024, 02:33 PM

Quote:

Originally Posted by lucabon

An issue is already opened in libcap-ng repository: https://github.com/stevegrubb/libcap-ng/issues/48

Fixed in main branch (will be applied with 0.8.5 release), and fixed with the following patch in Fedora rawhide:
https://src.fedoraproject.org/rpms/l...xception.patch

marav · 01-04-2024, 03:48 PM

Also fixed here, in the main tree

Code:

Thu Jan  4 20:38:00 UTC 2024
  libcap-ng: patch to fix build with swig-4.2.0. Thanks to lucabon.