Re: build failures: string.h vs. HP-UX

[Bob Proulx]

Bob Proulx wrote:
> That seemed to mostly work.  It is still failing under ia64 though.  I
> think the compiler there has no support for restrict.  If I define
> restrict to be nothing to disable it completely then the compilation
> succeeds.
> ...
> So apparently the configure test for a working restrict is not
> catching this case.

The HP-UX ia64 compiler does support __restrict fine.  The configure
test is detecting this correctly.  That turns out not to be the
problem.

The problem is that regex.h is defining "__restrict" to be "restrict"!
The regex.h code is:

  /* GCC 2.95 and later have "__restrict"; C99 compilers have
     "restrict", and "configure" may have defined "restrict".  */
  #ifndef __restrict
  # if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__))
  #  if defined restrict || 199901L <= __STDC_VERSION__
  #   define __restrict restrict
  #  else
  #   define __restrict
  #  endif
  # endif
  #endif

And of course config.h is defining "restrict" to be "__restrict".

  #define restrict __restrict

That combination is obviously not good.

Bob