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diff -uNr tcc-0.9.26.orig/libtcc.c tcc-0.9.26-1tclio/libtcc.c
--- tcc-0.9.26.orig/libtcc.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/libtcc.c	2014-05-01 21:14:22.272599405 -0500
@@ -669,7 +669,7 @@
     bf->line_num = 1;
     bf->ifndef_macro = 0;
     bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
-    bf->fd = -1;
+    bf->fd = NULL;
     bf->prev = file;
................................................................................
+    size = Tcl_Read(fd, (char *)&ehdr, sizeof(ehdr));
+    Tcl_Seek(fd, 0, SEEK_SET);
     if (size <= 0) {
         tcc_error_noabort("could not read header");
         goto the_end;
diff -uNr tcc-0.9.26.orig/tcc.h tcc-0.9.26-1tclio/tcc.h
--- tcc-0.9.26.orig/tcc.h	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tcc.h	2014-05-01 21:14:22.294602204 -0500
@@ -429,7 +429,7 @@
 typedef struct BufferedFile {
     uint8_t *buf_ptr;
     uint8_t *buf_end;
-    int fd;
+    Tcl_Channel fd;
     struct BufferedFile *prev;
................................................................................
-ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
+ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, Tcl_Channel fd);
 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
diff -uNr tcc-0.9.26.orig/tcccoff.c tcc-0.9.26-1tclio/tcccoff.c
--- tcc-0.9.26.orig/tcccoff.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tcccoff.c	2014-05-01 21:14:22.295602331 -0500
@@ -858,10 +858,11 @@
     return 0;
 }
 
-ST_FUNC int tcc_load_coff(TCCState * s1, int fd)
+ST_FUNC int tcc_load_coff(TCCState * s1, Tcl_Channel fd)
 {
................................................................................
+
+    f = fdopen(native_fd, "rb");
     if (!f) {
 	tcc_error("Unable to open .out file for input");
     }
diff -uNr tcc-0.9.26.orig/tccelf.c tcc-0.9.26-1tclio/tccelf.c
--- tcc-0.9.26.orig/tccelf.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tccelf.c	2014-05-01 21:14:22.301603094 -0500
@@ -2334,13 +2334,13 @@
     return ret;
 }
 
-static void *load_data(int fd, unsigned long file_offset, unsigned long size)
+static void *load_data(Tcl_Channel fd, unsigned long file_offset, unsigned long size)
 {
................................................................................
-    read(fd, &ehdr, sizeof(ehdr));
+    Tcl_Read(fd, (char *) &ehdr, sizeof(ehdr));
 
     /* test CPU specific stuff */
     if (ehdr.e_ident[5] != ELFDATA2LSB ||
diff -uNr tcc-0.9.26.orig/tccpe.c tcc-0.9.26-1tclio/tccpe.c
--- tcc-0.9.26.orig/tccpe.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tccpe.c	2014-05-01 21:14:22.302603222 -0500
@@ -1505,10 +1505,10 @@
 
 /* ------------------------------------------------------------- */
 
-static int read_mem(int fd, unsigned offset, void *buffer, unsigned len)
+static int read_mem(Tcl_Channel fd, unsigned offset, void *buffer, unsigned len)
 {
................................................................................
-ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd)
+ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, Tcl_Channel fd)
 {
     int ret = -1;
     char buf[10];
diff -uNr tcc-0.9.26.orig/tccpp.c tcc-0.9.26-1tclio/tccpp.c
--- tcc-0.9.26.orig/tccpp.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tccpp.c	2014-05-01 22:25:10.373511188 -0500
@@ -360,13 +360,13 @@
     int len;
     /* only tries to read if really end of buffer */
     if (bf->buf_ptr >= bf->buf_end) {
-        if (bf->fd != -1) {
+        if (bf->fd != NULL) {
 #if defined(PARSE_DEBUG)
................................................................................
             }
 
-            if (tcc_open(s1, buf1) < 0)
+            if (tcc_open(s1, buf1) == NULL)
 include_trynext:
                 continue;
 














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diff -uNr tcc-0.9.26.orig/libtcc.c tcc-0.9.26-1tclio/libtcc.c
--- tcc-0.9.26.orig/libtcc.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/libtcc.c	2014-05-02 01:30:08.967140003 -0500
@@ -669,7 +669,7 @@
     bf->line_num = 1;
     bf->ifndef_macro = 0;
     bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
-    bf->fd = -1;
+    bf->fd = NULL;
     bf->prev = file;
................................................................................
+    size = Tcl_Read(fd, (char *)&ehdr, sizeof(ehdr));
+    Tcl_Seek(fd, 0, SEEK_SET);
     if (size <= 0) {
         tcc_error_noabort("could not read header");
         goto the_end;
diff -uNr tcc-0.9.26.orig/tcc.h tcc-0.9.26-1tclio/tcc.h
--- tcc-0.9.26.orig/tcc.h	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tcc.h	2014-05-02 01:30:08.967140003 -0500
@@ -429,7 +429,7 @@
 typedef struct BufferedFile {
     uint8_t *buf_ptr;
     uint8_t *buf_end;
-    int fd;
+    Tcl_Channel fd;
     struct BufferedFile *prev;
................................................................................
-ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
+ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, Tcl_Channel fd);
 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
diff -uNr tcc-0.9.26.orig/tcccoff.c tcc-0.9.26-1tclio/tcccoff.c
--- tcc-0.9.26.orig/tcccoff.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tcccoff.c	2014-05-02 01:30:08.967140003 -0500
@@ -858,10 +858,11 @@
     return 0;
 }
 
-ST_FUNC int tcc_load_coff(TCCState * s1, int fd)
+ST_FUNC int tcc_load_coff(TCCState * s1, Tcl_Channel fd)
 {
................................................................................
+
+    f = fdopen(native_fd, "rb");
     if (!f) {
 	tcc_error("Unable to open .out file for input");
     }
diff -uNr tcc-0.9.26.orig/tccelf.c tcc-0.9.26-1tclio/tccelf.c
--- tcc-0.9.26.orig/tccelf.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tccelf.c	2014-05-02 01:30:08.967140003 -0500
@@ -2334,13 +2334,13 @@
     return ret;
 }
 
-static void *load_data(int fd, unsigned long file_offset, unsigned long size)
+static void *load_data(Tcl_Channel fd, unsigned long file_offset, unsigned long size)
 {
................................................................................
-    read(fd, &ehdr, sizeof(ehdr));
+    Tcl_Read(fd, (char *) &ehdr, sizeof(ehdr));
 
     /* test CPU specific stuff */
     if (ehdr.e_ident[5] != ELFDATA2LSB ||
diff -uNr tcc-0.9.26.orig/tccpe.c tcc-0.9.26-1tclio/tccpe.c
--- tcc-0.9.26.orig/tccpe.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tccpe.c	2014-05-02 01:30:08.967140003 -0500
@@ -1505,10 +1505,10 @@
 
 /* ------------------------------------------------------------- */
 
-static int read_mem(int fd, unsigned offset, void *buffer, unsigned len)
+static int read_mem(Tcl_Channel fd, unsigned offset, void *buffer, unsigned len)
 {
................................................................................
-ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd)
+ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, Tcl_Channel fd)
 {
     int ret = -1;
     char buf[10];
diff -uNr tcc-0.9.26.orig/tccpp.c tcc-0.9.26-1tclio/tccpp.c
--- tcc-0.9.26.orig/tccpp.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/tccpp.c	2014-05-02 01:30:08.967140003 -0500
@@ -360,13 +360,13 @@
     int len;
     /* only tries to read if really end of buffer */
     if (bf->buf_ptr >= bf->buf_end) {
-        if (bf->fd != -1) {
+        if (bf->fd != NULL) {
 #if defined(PARSE_DEBUG)
................................................................................
             }
 
-            if (tcc_open(s1, buf1) < 0)
+            if (tcc_open(s1, buf1) == NULL)
 include_trynext:
                 continue;
 
diff -uNr tcc-0.9.26.orig/win32/tools/tiny_impdef.c tcc-0.9.26-1tclio/win32/tools/tiny_impdef.c
--- tcc-0.9.26.orig/win32/tools/tiny_impdef.c	2013-02-15 08:24:00.000000000 -0600
+++ tcc-0.9.26-1tclio/win32/tools/tiny_impdef.c	2014-05-02 01:31:28.497140003 -0500
@@ -161,7 +161,7 @@
 /* -------------------------------------------------------------- */
 #endif
 
-char *get_export_names(int fd)
+char *get_export_names(Tcl_Channel fd)
 {
     int l, i, n, n0;
     char *p;