[gimp] Applied changes from SVN version 95 of official version of TinyScheme Added missing "const" in schem

[Kevin Cozens <kcozens src gnome org>]

commit 1e85ae981aac98f0eeab176b0dcac6dbb65243b7
Author: Kevin Cozens <kevin ve3syb ca>
Date:   Sun Mar 31 14:55:11 2013 -0400

    Applied changes from SVN version 95 of official version of TinyScheme
    Added missing "const" in scheme_registerable structure.

 plug-ins/script-fu/tinyscheme/scheme.c |   21 ++++++++++++---------
 plug-ins/script-fu/tinyscheme/scheme.h |    2 +-
 2 files changed, 13 insertions(+), 10 deletions(-)
---
diff --git a/plug-ins/script-fu/tinyscheme/scheme.c b/plug-ins/script-fu/tinyscheme/scheme.c
index b2120c4..81d4da5 100644
--- a/plug-ins/script-fu/tinyscheme/scheme.c
+++ b/plug-ins/script-fu/tinyscheme/scheme.c
@@ -1949,7 +1949,8 @@ static INLINE int skipspace(scheme *sc) {
 
 /* record it */
 #if SHOW_ERROR_LINE
-     sc->load_stack[sc->file_i].rep.stdio.curr_line += curr_line;
+     if (sc->load_stack[sc->file_i].kind & port_file)
+       sc->load_stack[sc->file_i].rep.stdio.curr_line += curr_line;
 #endif
 
      if(c!=EOF) {
@@ -1988,7 +1989,7 @@ static int token(scheme *sc) {
             ;
 
 #if SHOW_ERROR_LINE
-           if(c == '\n')
+           if(c == '\n' && sc->load_stack[sc->file_i].kind & port_file)
              sc->load_stack[sc->file_i].rep.stdio.curr_line++;
 #endif
 
@@ -2021,7 +2022,7 @@ static int token(scheme *sc) {
                    ;
 
 #if SHOW_ERROR_LINE
-           if(c == '\n')
+           if(c == '\n' && sc->load_stack[sc->file_i].kind & port_file)
              sc->load_stack[sc->file_i].rep.stdio.curr_line++;
 #endif
 
@@ -2497,7 +2498,8 @@ static pointer _Error_1(scheme *sc, const char *s, pointer a) {
      char sbuf[STRBUFFSIZE];
 
      /* make sure error is not in REPL */
-     if(sc->load_stack[sc->file_i].rep.stdio.file != stdin) {
+     if (sc->load_stack[sc->file_i].kind & port_file &&
+         sc->load_stack[sc->file_i].rep.stdio.file != stdin) {
        int ln = sc->load_stack[sc->file_i].rep.stdio.curr_line;
        const char *fname = sc->load_stack[sc->file_i].rep.stdio.filename;
 
@@ -4431,7 +4433,7 @@ static pointer opexe_5(scheme *sc, enum scheme_opcodes op) {
                if (c != '\n')
                  backchar(sc,c);
 #if SHOW_ERROR_LINE
-               else
+               else if (sc->load_stack[sc->file_i].kind & port_file)
                   sc->load_stack[sc->file_i].rep.stdio.curr_line++;
 #endif
                sc->nesting_stack[sc->file_i]--;
@@ -5082,11 +5084,12 @@ void scheme_deinit(scheme *sc) {
   }
 
 #if SHOW_ERROR_LINE
-  fname = sc->load_stack[i].rep.stdio.filename;
-
   for(i=0; i<sc->file_i; i++) {
-    if(fname)
-      sc->free(fname);
+    if (sc->load_stack[sc->file_i].kind & port_file) {
+      fname = sc->load_stack[i].rep.stdio.filename;
+      if(fname)
+        sc->free(fname);
+    }
   }
 #endif
 }
diff --git a/plug-ins/script-fu/tinyscheme/scheme.h b/plug-ins/script-fu/tinyscheme/scheme.h
index 5b60dff..198182c 100644
--- a/plug-ins/script-fu/tinyscheme/scheme.h
+++ b/plug-ins/script-fu/tinyscheme/scheme.h
@@ -249,7 +249,7 @@ struct scheme_interface {
 typedef struct scheme_registerable
 {
   foreign_func  f;
-  char *       name;
+  const char *  name;
 }
 scheme_registerable;