[commit/Ada] use lbasename when testing if file is part of Ada runtime.

[Joel Brobecker <brobecker@adacore.com>]

We use a list of regular expressions to match a symtab filenames
against the names of the files in the Ada runtime.  These regular
expressions do assume that the filename is a basename, however.
So make sure to evaluate these regular expressions against
the symtab's filename.

Without this patch, we run into problems when the Ada runtime was built
using a project file (through gprbuild).

gdb/ChangeLog:

        * ada-lang.c (is_known_support_routine): Use lbasename when
        matching the symtab's filename against
        known_runtime_file_name_patterns.

Tested on x86_64-linux.  Checked in.

---
 gdb/ChangeLog  |    6 ++++++
 gdb/ada-lang.c |    2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 55ad4d9..a4dd74e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
 2012-10-24  Joel Brobecker  <brobecker@adacore.com>
 
+	* ada-lang.c (is_known_support_routine): Use lbasename when
+	matching the symtab's filename against
+	known_runtime_file_name_patterns.
+
+2012-10-24  Joel Brobecker  <brobecker@adacore.com>
+
 	* ada-lang.c (ada_same_array_size_p): New function.
 	(ada_promote_array_of_integrals): New function.
 	(coerce_for_assign): Add handling of arrays where the elements
diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index edef6bd..2dde814 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -10973,7 +10973,7 @@ is_known_support_routine (struct frame_info *frame)
   for (i = 0; known_runtime_file_name_patterns[i] != NULL; i += 1)
     {
       re_comp (known_runtime_file_name_patterns[i]);
-      if (re_exec (sal.symtab->filename))
+      if (re_exec (lbasename (sal.symtab->filename)))
         return 1;
       if (sal.symtab->objfile != NULL
           && re_exec (sal.symtab->objfile->name))
-- 
1.7.9.5