Use path::realize() instead of normalize() for extracted dependencies

1 files changed, 9 insertions, 1 deletions

diff --git a/build2/cxx/compile.cxx b/build2/cxx/compile.cxx
index db63700..e4f2e7b 100644
--- a/build2/cxx/compile.cxx
+++ b/build2/cxx/compile.cxx
@@ -536,10 +536,11 @@ namespace build2
               }
 
               path f (move (fs));
-              f.normalize ();
 
               if (!f.absolute ())
               {
+                f.normalize ();
+
                 // This is probably as often an error as an auto-generated
                 // file, so trace at level 4.
                 //
@@ -584,6 +585,13 @@ namespace build2
                 f = i->second / f;
               }
 
+              // We used to just normalize the path but that could result in
+              // an invalid path (e.g., on CentOS 7 with Clang 3.4) because
+              // of the symlinks. So now we realize (i.e., realpath(3)) it
+              // instead.
+              //
+              f.realize ();
+
               level6 ([&]{trace << "injecting " << f;});
 
               // Split the name into its directory part, the name part, and