yet more cleanups of the PERL_OBJECT, MULTIPLICITY and USE_THREADS

builds; passing the implicit context is unified among the three
flavors; PERL_IMPLICIT_CONTEXT is auto-enabled under all three
flavors (see the top of perl.h) for testing; all varargs functions
foo() have a va_list-taking variant vfoo() for generating the
context-free versions; the PERL_OBJECT build should now be
hyper-compatible with CPAN extensions (C++ is totally out of
the picture)

result has only been tested on Windows

TODO: write docs on the THX rationale and idiomatic usage of
the Perl API

p4raw-id: //depot/perl@3667

1 files changed, 4 insertions, 0 deletions

diff --git a/perlio.c b/perlio.c
index 505548ae39..9230b0c004 100644
--- a/perlio.c
+++ b/perlio.c
@@ -7,6 +7,8 @@
  *
  */
 
+#if !defined(PERL_IMPLICIT_SYS)
+
 #define VOIDUSED 1
 #include "config.h"
 
@@ -560,3 +562,5 @@ PerlIO_sprintf(char *s, int n, const char *fmt,...)
 }
 #endif
 
+#endif /* !PERL_IMPLICIT_SYS */
+