From 988fd0eec5d88bf6534fb1f645777350c20d4723 Mon Sep 17 00:00:00 2001 From: Boris Kolpackov Date: Sat, 30 Jul 2016 11:41:48 +0200 Subject: Actualize project root directories This solves the problem of changing path spelling on platforms with case- insensitive filesystems. For example, you may build a project in the current working directory without specifying any paths. This means the current working directory will be used as the project's root. On Windows this could be C:\x. Now you are building another project that imports the above project and you specify config.import.x variable pointing to the above build. But you are lazy to type capital C so you spell it as config.import.x=c:\x. What happens now is the value from config.import.x is used as the project root. And now it is a different spelling compared to your original build. This is not a problem when the build system itself is concerned -- it is smart enough to use case-insensitive comparison. However, we often use roots to derive other things, say, -I options that we pass to compilers. And these options are normally no longer treated as (case-insensitive) paths. If they are hashed and the result stored in depdb, then we end up with rebuilds that are triggered by changes from C:\ to c:\. --- build2/variable.cxx | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'build2/variable.cxx') diff --git a/build2/variable.cxx b/build2/variable.cxx index 2d4db86..eec0573 100644 --- a/build2/variable.cxx +++ b/build2/variable.cxx @@ -601,7 +601,7 @@ namespace build2 if (d.relative ()) d.complete (); - d.normalize (); + d.normalize (true); // Actualize. return abs_dir_path (move (d)); } -- cgit v1.1