Make c-scanner use native path format for included headers in order to match the names of generated headers

[SVN r50390]

v2/test/implicit_dependency.py

@@ -45,4 +45,37 @@ t.run_build_system()
 
 t.expect_addition("bin/$toolset/debug/hello.exe")
 
+t.rm("bin")
+
+t.write("jamroot.jam", """
+make dir/a.h : : gen-header ;
+explicit dir/a.h ;
+
+exe hello : hello.cpp : <implicit-dependency>dir/a.h ;
+
+import os ;
+if [ os.name ] = NT
+{
+    actions gen-header
+    {
+       echo int i; > $(<)
+    }
+}
+else
+{
+    actions gen-header
+    {
+        echo "int i;" > $(<)
+    }
+}
+""")
+
+t.write("hello.cpp", """
+#include "dir/a.h"
+int main() { return i; }
+""")
+t.run_build_system()
+
+t.expect_addition("bin/$toolset/debug/hello.exe")
+
 t.cleanup()

v2/tools/builtin.jam

@@ -15,11 +15,13 @@ import feature ;
 import generators ;
 import numbers ;
 import os ;
+import path ;
 import print ;
 import project ;
 import property ;
 import regex ;
 import scanner ;
+import sequence ;
 import stage ;
 import symlink ;
 import toolset ;
@@ -441,7 +443,9 @@ class c-scanner : scanner
     rule process ( target : matches * : binding )
     {
         local angle  = [ regex.transform $(matches) : "<(.*)>"   ] ;
+        angle = [ sequence.transform path.native : $(angle) ] ;
         local quoted = [ regex.transform $(matches) : "\"(.*)\"" ] ;
+        quoted = [ sequence.transform path.native : $(quoted) ] ;
 
         # CONSIDER: the new scoping rule seem to defeat "on target" variables.
         local g = [ on $(target) return $(HDRGRIST) ] ;