makefile.pm: remove build directory even if Makefile does not exist yet.

[debhelper.git] / Debian / Debhelper / Buildsystem / makefile.pm

diff --git a/Debian/Debhelper/Buildsystem/makefile.pm b/Debian/Debhelper/Buildsystem/makefile.pm
index d4b68e4c1e2de7f943c6008021e249fc46b1ef66..f38387bdc22c4a7a7aff94cba3094e4d41d20664 100644 (file)
--- a/Debian/Debhelper/Buildsystem/makefile.pm
+++ b/Debian/Debhelper/Buildsystem/makefile.pm
@@ -69,11 +69,23 @@ sub check_auto_buildable {
        my $this=shift;
        my ($step) = @_;
 
-       # This is always called in the source directory, but generally
-       # Makefiles are created (or live) in the the build directory.
-       return (-e $this->get_buildpath("Makefile") ||
-               -e $this->get_buildpath("makefile") ||
-               -e $this->get_buildpath("GNUmakefile")) ? 1 : 0;
+       if (-e $this->get_buildpath("Makefile") ||
+           -e $this->get_buildpath("makefile") ||
+           -e $this->get_buildpath("GNUmakefile"))
+       {
+               # This is always called in the source directory, but generally
+               # Makefiles are created (or live) in the the build directory.
+               return 1;
+       } elsif ($step eq "clean" && defined $this->get_builddir() &&
+                $this->check_auto_buildable("configure"))
+       {
+               # Assume that the package can be cleaned (i.e. the build directory can
+               # be removed) as long as it is built out-of-source tree and can be
+               # configured. This is useful for derivative buildsystems which
+               # generate Makefiles.
+               return 1;
+       }
+       return 0;
 }
 
 sub build {