Batch of small 64-bit/long double/large file support tweaks:

- scan for LDBL_DIG
- from DBL_DIG and LDBL_DIG select NV_DIG
- introduce IVSIZE, UVSIZE, NVSIZE
- introduce IV_DIG
- remove stdio64
- AIX uses `oslevel` when others use `uname -r`
- already AIX 4.2 goes 64-bit
- in HP-UX require the 64-bit libc, just the directory isn't enough
- group ids are not NVs
- #undef USE_LONG_DOUBLE if long double is no better than double
- introduce NV_WITHIN_*() and IV_FITS_IN_IV
- mention large file support in perldelta
- introduce quad TOPpin' and POPpin'
- the svcat... buffer was tiny for printing quads in %b
- fix the multiplication test in 64bit.t
- try to make VMS to comply with all this removal and "introducal"
  of symbols

p4raw-id: //depot/cfgperl@3995

1 files changed, 1 insertions, 5 deletions

diff --git a/dump.c b/dump.c
index 8735db3f0b..ac6a07ed6e 100644
--- a/dump.c
+++ b/dump.c
@@ -17,10 +17,6 @@
 #include "perl.h"
 #include "regcomp.h"
 
-#ifndef DBL_DIG
-#define DBL_DIG	15   /* A guess that works lots of places */
-#endif
-
 void
 Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
 {
@@ -923,7 +919,7 @@ Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bo
     if (type >= SVt_PVNV || type == SVt_NV) {
 	RESTORE_NUMERIC_STANDARD();
 #ifdef USE_LONG_DOUBLE
-	Perl_dump_indent(aTHX_ level, file, "  NV = %.*" PERL_PRIgldbl "\n", DBL_DIG, SvNVX(sv));
+	Perl_dump_indent(aTHX_ level, file, "  NV = %.*" PERL_PRIgldbl "\n", LDBL_DIG, SvNVX(sv));
 #else
 	Perl_dump_indent(aTHX_ level, file, "  NV = %.*g\n", DBL_DIG, SvNVX(sv));
 #endif