mesa: automake: distclean git_sha1.h when building OOT

In the case of out-of-tree (OOT) builds, in particular when building
from tarball, we'll end up with the file in both srcdir and builddir.

We want the former to remain intact (since we need it on rebuild) while
the latter should be removed otherwise `make distclean' gets angry at
us.

Ideally there'll be a solution that feels a bit less of a hack. Until
then this does the job exactly as expected.

Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

diff --git a/src/Makefile.am b/src/Makefile.am
index a5c54ffc03bcebe601130d145a562def35dd0bbe..0527a315955412307145145d62bc5ae58ab2327c 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -46,6 +46,12 @@ git_sha1.h: git_sha1.h.tmp
 
 BUILT_SOURCES = git_sha1.h
 
+# We want to keep the srcdir file since we need it on rebuild from tarball.
+# At the same time `make distclean' gets angry at us if we don't cleanup the
+# builddir one.
+distclean-local:
+       test $(top_srcdir) != $(top_builddir) && rm $(builddir)/git_sha1.h
+
 SUBDIRS = . gtest util mapi/glapi/gen mapi
 
 # include only conditionally ?