[bug-idutils] A couple of issues building idutils 4.5 on HP-UX 11

[Richard Lloyd]

I'm using HP's ANSI C compiler on PA-RISC and Itanium platforms running
HP-UX 11.11, 11.23 and 11.31 and came across a couple of code issues that
needed fixing:

* Line 666 of lib/stdio.in.h reads:

  _GL_CXXALIAS_RPL (printf, printf, int, (const char *format, ...));

  which has 4 parameters to the macro instead of 3. The first printf should
  be removed so that it reads:

  _GL_CXXALIAS_RPL (printf, int, (const char *format, ...));

* Lines 150-153 of gnulib-tests/setenv.c read:

      new_environ =
        (char **) (last_environ == NULL
                   ? malloc ((size + 2) * sizeof (char *))
                   : realloc (last_environ, (size + 2) * sizeof (char *)));

  malloc() and realloc() both return (void *), so casting a (void *) to
  (char **) upsets the HP C compiler. The solution is to cast the
  malloc()/realloc() return value to (char *) first:

      new_environ =
        (char **) (last_environ == NULL
                   ? (char *)malloc ((size + 2) * sizeof (char *))
                   : (char *)realloc (last_environ, (size + 2) * sizeof (char 
*)));

On a non-coding issue, someone might want to update the top-level README file
of idutils, because it makes references to 'mkid' throughout (and no mention
of idutils at all!) and claims that "Version 4 will follow in the coming
months"...

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