Don't insist on 'long long int' support in the preprocessor. It

Don't insist on 'long long int' support in the preprocessor.  It

breaks too many things.  For example, PRIdMAX still uses a 'long
long int' format with the latest Sun compiler, even though
HAVE_LONG_LONG_INT isn't defined due to that compiler's
preprocessor problem.  This causes the latest coreutils to dump
core on Solaris 10 sparc with the Sun C compiler.
Instead, fix the 2007-10-16 problem in a different way, by evaluating
the troublesome expressions at configure-time, not at #if-time.
* m4/longlong.m4 (_AC_TYPE_LONG_LONG_SNIPPET): Don't test the
preprocessor.
* m4/inttypes.m4 (gl_INTTYPES_H): Move the #if checks into
compile-time C checks, done at 'configure'-time.
(gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION): New macro.
* modules/inttypes (Makefile): Substitute the new symbols that
gl_INTTYPES_H now generates.
* lib/inttypes.in.h: Don't use constants wider than 'long' in #if.