i386 glibc is missing fmod in libm.a

[Zixing Liu]

The `libm.a` static library on i386 architecture lacks the math function `fmod`:

(mantic-i386)$ readelf --syms --wide /usr/lib/i386-linux-gnu/libm.a | grep fmod
File: /usr/lib/i386-linux-gnu/libm.a(w_fmodl_compat.o)
File: /usr/lib/i386-linux-gnu/libm.a(w_fmod_compat.o)
File: /usr/lib/i386-linux-gnu/libm.a(w_fmodf_compat.o)
File: /usr/lib/i386-linux-gnu/libm.a(e_fmodl.o)
     2: 00000000 23 FUNC GLOBAL DEFAULT 1 __ieee754_fmodl
File: /usr/lib/i386-linux-gnu/libm.a(w_fmodl.o)
     4: 00000000 148 FUNC GLOBAL DEFAULT 2 __fmodl
     7: 00000000 0 NOTYPE GLOBAL DEFAULT UND __ieee754_fmodl
     9: 00000000 148 FUNC WEAK DEFAULT 2 fmodf64x
    10: 00000000 148 FUNC WEAK DEFAULT 2 fmodl
File: /usr/lib/i386-linux-gnu/libm.a(e_fmod.o)
     2: 00000000 23 FUNC GLOBAL DEFAULT 1 __ieee754_fmod
File: /usr/lib/i386-linux-gnu/libm.a(w_fmod.o)
File: /usr/lib/i386-linux-gnu/libm.a(e_fmodf.o)
     2: 00000000 23 FUNC GLOBAL DEFAULT 1 __ieee754_fmodf
File: /usr/lib/i386-linux-gnu/libm.a(w_fmodf.o)
File: /usr/lib/i386-linux-gnu/libm.a(e_fmodf128.o)
     7: 00000000 3227 FUNC GLOBAL DEFAULT 2 __ieee754_fmodf128
    13: 00000000 0 NOTYPE GLOBAL DEFAULT UND __ieee754_fmodf128
    14: 00000000 0 NOTYPE GLOBAL DEFAULT UND __ieee754_fmodf128
File: /usr/lib/i386-linux-gnu/libm.a(w_fmodf128.o)
     6: 00000000 578 FUNC GLOBAL DEFAULT 2 __fmodf128
    10: 00000000 0 NOTYPE GLOBAL DEFAULT UND __ieee754_fmodf128
    12: 00000000 578 FUNC WEAK DEFAULT 2 fmodf128

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sven Hartrumpf (hartrumpf)]

24.04 and 23.10 are affected, while 22.04 is ok.

[Sven Hartrumpf (hartrumpf)]

This is Debian bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1070872 which is already fixed in glibc 2.38-11