The modification should allow the package to be built on new platforms:
hurd and *freebsd.
Gbp-Pq: Topic porting-kfreebsd-hurd
Gbp-Pq: Name Fix-FTBFS-on-kFreeBSD-and-Hurd.patch
#define KIFACE_INSTANCE_NAME_AND_VERSION "KIFACE_1"
#ifndef SWIG
-#if defined(__linux__) || defined(__FreeBSD__)
+#if defined(__linux__) || defined(__GLIBC__) || defined(__FreeBSD__) || defined(__GNU__)
#define LIB_ENV_VAR wxT( "LD_LIBRARY_PATH" )
#elif defined(__WXMAC__)
#define LIB_ENV_VAR wxT( "DYLD_LIBRARY_PATH" )