From 49f8bb2d42c970325160658862b0a7f0e2cd066a Mon Sep 17 00:00:00 2001
From: "jan.nijtmans" <nijtmans@users.sourceforge.net>
Date: Mon, 4 Nov 2013 10:02:58 +0000
Subject: Put extern "C" guards around all stub table struct definitions, so it
 is usable for C++ compilers as well without the danger of modifying the
 calling convention. For tclDecls.h it was no problem, because tcl.h already
 contains those guards. But for the other *Decls.h files (e.g.
 tclTomMathDecls.h) it was not correct.

---
 generic/tclDecls.h        | 8 +++++---
 generic/tclIntDecls.h     | 8 +++++---
 generic/tclIntPlatDecls.h | 8 +++++---
 generic/tclPlatDecls.h    | 8 +++++---
 generic/tclTomMathDecls.h | 8 +++++---
 tools/genStubs.tcl        | 5 +++--
 6 files changed, 28 insertions(+), 17 deletions(-)

diff --git a/generic/tclDecls.h b/generic/tclDecls.h
index 4ca9f68..b11c0d8 100644
--- a/generic/tclDecls.h
+++ b/generic/tclDecls.h
@@ -31,6 +31,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -4131,10 +4135,8 @@ typedef struct TclStubs {
     void (*tclUnusedStubEntry) (void); /* 630 */
 } TclStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern TclStubs *tclStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/generic/tclIntDecls.h b/generic/tclIntDecls.h
index 1dc797a..e4e85ad 100644
--- a/generic/tclIntDecls.h
+++ b/generic/tclIntDecls.h
@@ -50,6 +50,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -1309,10 +1313,8 @@ typedef struct TclIntStubs {
     char * (*tclDoubleDigits) (double dv, int ndigits, int flags, int *decpt, int *signum, char **endPtr); /* 249 */
 } TclIntStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern TclIntStubs *tclIntStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/generic/tclIntPlatDecls.h b/generic/tclIntPlatDecls.h
index 1e68c9c..80dd2ad 100644
--- a/generic/tclIntPlatDecls.h
+++ b/generic/tclIntPlatDecls.h
@@ -37,6 +37,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -533,10 +537,8 @@ typedef struct TclIntPlatStubs {
 #endif /* MACOSX */
 } TclIntPlatStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern TclIntPlatStubs *tclIntPlatStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/generic/tclPlatDecls.h b/generic/tclPlatDecls.h
index 8652e8d..ef23c84 100644
--- a/generic/tclPlatDecls.h
+++ b/generic/tclPlatDecls.h
@@ -36,6 +36,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -87,10 +91,8 @@ typedef struct TclPlatStubs {
 #endif /* MACOSX */
 } TclPlatStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern TclPlatStubs *tclPlatStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/generic/tclTomMathDecls.h b/generic/tclTomMathDecls.h
index 04a23f3..056ad85 100644
--- a/generic/tclTomMathDecls.h
+++ b/generic/tclTomMathDecls.h
@@ -134,6 +134,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -538,10 +542,8 @@ typedef struct TclTomMathStubs {
     int (*tclBN_mp_cnt_lsb) (mp_int *a); /* 63 */
 } TclTomMathStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern TclTomMathStubs *tclTomMathStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/tools/genStubs.tcl b/tools/genStubs.tcl
index c7dbe93..37205b2 100644
--- a/tools/genStubs.tcl
+++ b/tools/genStubs.tcl
@@ -991,6 +991,8 @@ proc genStubs::emitHeader {name} {
 	append text "#define ${CAPName}_STUBS_REVISION $revision\n"
     }
 
+    append text "\n#ifdef __cplusplus\nextern \"C\" {\n#endif\n"
+
     emitDeclarations $name text
 
     if {[info exists hooks($name)]} {
@@ -1014,8 +1016,7 @@ proc genStubs::emitHeader {name} {
 
     append text "} ${capName}Stubs;\n\n"
 
-    append text "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"
-    append text "extern ${capName}Stubs *${name}StubsPtr;\n"
+    append text "extern ${capName}Stubs *${name}StubsPtr;\n\n"
     append text "#ifdef __cplusplus\n}\n#endif\n"
 
     emitMacros $name text
-- 
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