Evict PERLIO_IS_STDIO from top-level core files.

Configuring with perlio has been the only option since dd35fa16610
in 2011, first released in 5.16.0.  Yet we have still have had all
this dead code for stdio support cluttering up the sources and
dulling the machetes of anyone who wants to do further work on
perlio or someone (like me) who just stumbles on some code that
looks like it needs fixing but isn't worth the time since the
compiler will never see it.

Leave a vestigial perlsdio.h since its presence is hard-coded in
a number of places.

1 files changed, 0 insertions, 24 deletions

diff --git a/perlio.c b/perlio.c
index b5d5959a32..ae8cbc9423 100644
--- a/perlio.c
+++ b/perlio.c
@@ -338,29 +338,6 @@ Perl_boot_core_PerlIO(pTHX)
 #endif
 
 
-#ifdef PERLIO_IS_STDIO
-
-void
-PerlIO_init(pTHX)
-{
-    PERL_UNUSED_CONTEXT;
-    /*
-     * Does nothing (yet) except force this file to be included in perl
-     * binary. That allows this file to force inclusion of other functions
-     * that may be required by loadable extensions e.g. for
-     * FileHandle::tmpfile
-     */
-}
-
-#undef PerlIO_tmpfile
-PerlIO *
-PerlIO_tmpfile(void)
-{
-    return tmpfile();
-}
-
-#else                           /* PERLIO_IS_STDIO */
-
 /*======================================================================================*/
 /*
  * Implement all the PerlIO interface ourselves.
@@ -5093,7 +5070,6 @@ Perl_PerlIO_restore_errno(pTHX_ PerlIO *f)
 #undef HAS_FSETPOS
 #undef HAS_FGETPOS
 
-#endif                          /* PERLIO_IS_STDIO */
 
 /*======================================================================================*/
 /*