libc-4.6.0.pdf - The Red Hat newlib C Library (FullConfiguration, libc 4.6.0, January 2026)
  libm-4.6.0.pdf - The Red Hat newlib C Math Library (libm 4.6.0, January 2026)

  Source URLs:
  -----------
    ftp://sourceware.org/pub/newlib/libc.pdf
    ftp://sourceware.org/pub/newlib/libm.pdf