Fix a regression in the 'glob' rule -- it is broken with the current bjam.

Handle ".." correctly.


[SVN r26595]

v2/test/glob.py

@@ -37,10 +37,22 @@ t.write("d2/d/Jamfile", """
 lib l : [ glob *.cpp ] ; 
 """)
 
-t.run_build_system(subdir="d1")
+t.write("d3/d/Jamfile", """
+exe a : [ glob ../*.cpp ] ;
+""")
+t.write("d3/a.cpp", """
+int main()
+{
+    return 0;
+}
+""")
 
+t.run_build_system(subdir="d1")
 t.expect_addition("d1/bin/$toolset/debug/a.exe")
 
+t.run_build_system(subdir="d3/d")
+t.expect_addition("d3/d/bin/$toolset/debug/a.exe")
+
 t.rm("d2/d/bin")
 t.run_build_system(subdir="d2/d")
 t.expect_addition("d2/d/bin/$toolset/debug/l.dll")

v2/util/path.jam

@@ -217,9 +217,34 @@ rule glob ( dirs * : patterns + )
     }
     else
     {        
-        for dir in $(dirs)
+        # When a pattern has not directory, we glob directly.
+        # Take care of special ".." value. The "GLOB" rule simply ignores
+        # the ".." element (and ".") element in directory listings. This is
+        # needed so that 
+        #
+        #    [ glob libs/*/Jamfile ]
+        #
+        # don't return 
+        #
+        #    libs/../Jamfile (which is the same as ./Jamfile)
+        #
+        # On the other hand, when ".." is explicitly present in the pattern
+        # we need to return it.
+        # 
+        for local dir in $(dirs)
         {
-            result += [ sequence.transform make : [ GLOB [ native $(dir) ] : $(patterns) ] ] ;
+            for local p in $(patterns)
+            {                
+                if $(p) != ".."
+                {                
+                    result += [ sequence.transform make 
+                        : [ GLOB [ native $(dir) ] : $(p) ] ] ;
+                }            
+                else
+                {
+                    result += [ path.join $(dir) .. ] ;
+                }            
+            }            
         }
     }    
     return $(result) ;