[Bug libgcc/124992] [IA64] libgcc_s.so missing __floatuntitf

[tglozar at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124992

--- Comment #1 from Tomáš Glozar <tglozar at gmail dot com> ---
Is this perhaps a simple oversight in commit
c252db2030a54b9cd3095405704dc68c3029a461 ("longlong.h (sub_ddmmss): New for
ia64.") that was not caught yet rather than a deliberate decision? (The commit
does not mention __floatuntitf specifically.)

If yes, it could be fixed like this:

--- gcc-15.2.0/libgcc/config/ia64/libgcc-glibc.ver.vanilla      2026-04-01
11:15:54.370086542 +0200
+++ gcc-15.2.0/libgcc/config/ia64/libgcc-glibc.ver      2026-04-01
11:20:00.079711645 +0200
@@ -99,3 +99,7 @@
 GCC_7.0.0 {
   __signbittf2
 }
+
+GCC_17.0.0 {
+  __floatuntitf
+}

FWIW, this makes boost_locale build, and nothing seem to blow up; 10 versions
later better than never I guess.