Portability bug with UINTPTR_MAX in Solaris/Forte

[Matthias Koeppe]

I have trouble compiling Guile from CVS HEAD on Solaris 7 and 8 using
the Forte (Sun Workshop) C compiler.  The reason is the new code
using `uintptr_t' (declarations in tags.h).

On Solaris, there is a uintptr_t, and UINTPTR_MAX is also a defined
macro, but it expands to nothing.  (/usr/include/sys/int_limits.h,
line 124.)  This causes the compilation of libguile/print.c (for
instance) to fail.

I would suggest that the presence of both uintptr_t and a useful value
UINTPTR_MAX should be checked at configuration time.

I am not sending a patch, but I am willing to test patches that fix
this problem, in case you don't have access to Solaris (or a non-gcc
compiler). 

-- 
Matthias Köppe -- http://www.math.uni-magdeburg.de/~mkoeppe