[Bug 2036283] Re: i386 glibc is missing fmod in libm.a

[Sven Hartrumpf]

24.04 and 23.10 are affected, while 22.04 is ok.

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Title:
  i386 glibc is missing fmod in libm.a

Status in glibc package in Ubuntu:
  Confirmed
Status in zsh package in Ubuntu:
  Confirmed

Bug description:
  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

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