Reverting context removal from change #27992. This should

clear up threaded builds on Win32 and VMS.	
p4raw-link: @27992 on //depot/perl: df528165173896ed88fc3da7e1aa8bc3ef3b2416

p4raw-id: //depot/perl@28041

4 files changed, 6 insertions, 6 deletions

diff --git a/embed.fnc b/embed.fnc
index a1ae02f40a..55f65fbd37 100644
--- a/embed.fnc
+++ b/embed.fnc
@@ -1237,7 +1237,7 @@ sR	|I32	|dopoptosub_at	|NN const PERL_CONTEXT* cxstk|I32 startingblock
 sR	|I32	|dopoptowhen	|I32 startingblock
 s	|void	|save_lines	|NULLOK AV *array|NN SV *sv
 sR	|OP*	|doeval		|int gimme|NULLOK OP** startop|NULLOK CV* outside|U32 seq
-sRn	|PerlIO *|check_type_and_open|NN const char *name|NN const char *mode
+sR	|PerlIO *|check_type_and_open|NN const char *name|NN const char *mode
 sR	|PerlIO *|doopen_pm	|NN const char *name|NN const char *mode
 sRn	|bool	|path_is_absolute|NN const char *name
 sR	|I32	|run_user_filter|int idx|NN SV *buf_sv|int maxlen
diff --git a/embed.h b/embed.h
index 8460885571..8476916a85 100644
--- a/embed.h
+++ b/embed.h
@@ -3400,7 +3400,7 @@
 #define dopoptowhen(a)		S_dopoptowhen(aTHX_ a)
 #define save_lines(a,b)		S_save_lines(aTHX_ a,b)
 #define doeval(a,b,c,d)		S_doeval(aTHX_ a,b,c,d)
-#define check_type_and_open	S_check_type_and_open
+#define check_type_and_open(a,b)	S_check_type_and_open(aTHX_ a,b)
 #define doopen_pm(a,b)		S_doopen_pm(aTHX_ a,b)
 #define path_is_absolute	S_path_is_absolute
 #define run_user_filter(a,b,c)	S_run_user_filter(aTHX_ a,b,c)
diff --git a/pp_ctl.c b/pp_ctl.c
index f88d401b6a..8ade9c3fb8 100644
--- a/pp_ctl.c
+++ b/pp_ctl.c
@@ -3026,7 +3026,7 @@ S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq)
 }
 
 STATIC PerlIO *
-S_check_type_and_open(const char *name, const char *mode)
+S_check_type_and_open(pTHX_ const char *name, const char *mode)
 {
     Stat_t st;
     const int st_rc = PerlLIO_stat(name, &st);
diff --git a/proto.h b/proto.h
index a6e5c2fdb8..bd5d285edf 100644
--- a/proto.h
+++ b/proto.h
@@ -3379,10 +3379,10 @@ STATIC void	S_save_lines(pTHX_ AV *array, SV *sv)
 STATIC OP*	S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq)
 			__attribute__warn_unused_result__;
 
-STATIC PerlIO *	S_check_type_and_open(const char *name, const char *mode)
+STATIC PerlIO *	S_check_type_and_open(pTHX_ const char *name, const char *mode)
 			__attribute__warn_unused_result__
-			__attribute__nonnull__(1)
-			__attribute__nonnull__(2);
+			__attribute__nonnull__(pTHX_1)
+			__attribute__nonnull__(pTHX_2);
 
 STATIC PerlIO *	S_doopen_pm(pTHX_ const char *name, const char *mode)
 			__attribute__warn_unused_result__