# ifdef USE_FAST_STDIO
" USE_FAST_STDIO"
# endif
+# ifdef USE_PERL_ATOF
+ " USE_PERL_ATOF"
+# endif
# ifdef USE_SITECUSTOMIZE
" USE_SITECUSTOMIZE"
# endif
dVAR;
GV *tmpgv;
IO *io;
+ AV *isa;
sv_setpvs(get_sv("\"", GV_ADD), " ");
PL_ofsgv = (GV*)SvREFCNT_inc(gv_fetchpvs(",", GV_ADD|GV_NOTQUAL, SVt_PV));
+
+ /* Historically, PVIOs were blessed into IO::Handle, unless
+ FileHandle was loaded, in which case they were blessed into
+ that. Action at a distance.
+ However, if we simply bless into IO::Handle, we break code
+ that assumes that PVIOs will have (among others) a seek
+ method. IO::File inherits from IO::Handle and IO::Seekable,
+ and provides the needed methods. But if we simply bless into
+ it, then we break code that assumed that by loading
+ IO::Handle, *it* would work.
+ So a compromise is to set up the correct @IO::File::ISA,
+ so that code that does C<use IO::Handle>; will still work.
+ */
+
+ isa = get_av("IO::File::ISA", GV_ADD | GV_ADDMULTI);
+ av_push(isa, newSVpvs("IO::Handle"));
+ av_push(isa, newSVpvs("IO::Seekable"));
+ av_push(isa, newSVpvs("Exporter"));
+ (void) gv_fetchpvs("IO::Handle::", GV_ADD, SVt_PVGV);
+ (void) gv_fetchpvs("IO::Seekable::", GV_ADD, SVt_PVGV);
+ (void) gv_fetchpvs("Exporter::", GV_ADD, SVt_PVGV);
+
+
PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO);
GvMULTI_on(PL_stdingv);
io = GvIOp(PL_stdingv);
(and not the architecture specific directories from $ENV{PERL5LIB}) */
/* Use the ~-expanded versions of APPLLIB (undocumented),
- ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
+ SITEARCH, SITELIB, VENDORARCH, VENDORLIB, ARCHLIB and PRIVLIB
*/
#ifdef APPLLIB_EXP
S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP),
}
/* Use the ~-expanded versions of APPLLIB (undocumented),
- ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
+ SITELIB and VENDORLIB for older versions
*/
#ifdef APPLLIB_EXP
S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP), INCPUSH_ADD_OLD_VERS