Bug#882874: glibc 2.25 FTBFS on ia64

[Jason Duerstock <jason.duerstock@gmail.com>]

Source: glibc
Followup-For: Bug #882874

This patch appears to correct the problem.

-- System Information:
Debian Release: buster/sid
Architecture: ia64

Kernel: Linux 3.2.0-4-mckinley (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

--- sysdeps/ia64/dl-machine.h
+++ sysdeps/ia64/dl-machine.h
@@ -45,7 +45,8 @@
 }
 
 #define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info)		\
-	__ia64_init_bootstrap_fdesc_table (&bootstrap_map);
+	__ia64_init_bootstrap_fdesc_table (&bootstrap_map);	\
+	_dl_fptr_init();
 
 /* Return nonzero iff ELF header is compatible with the running host.  */
 static inline int __attribute__ ((unused))