https://bugs.gentoo.org/592226

patch taken from Fedora

glibc-2.23+ no longer exports the uselib function.  make the syscall directly.

--- ski-1.3.2/src/linux/syscall-linux.c
+++ ski-1.3.2/src/linux/syscall-linux.c
@@ -554,7 +554,8 @@
 extern void munmapSyms (ADDR, ADDR);
 extern void dynBlock (ADDR, ADDR);
 extern void memFree (ADDR);
-extern int uselib (const char *libname);	/* Linux specific */
+#include <sys/syscall.h>
+#define uselib(libname) syscall(__NR_uselib, libname)
 
 extern int setresuid (uid_t, uid_t, uid_t);
 extern int getresuid (uid_t *, uid_t *, uid_t *);