maint: Resurrect running `make' from a tarball.

This is a follow-up to commit
    8b972da068708a8b17f3ab153ea940690ca49ca9
    Makefile.am: Auto-configure Git on 'make'.

* configure.ac (in_git_p): New conditional.
* Makefile.am (nodist_noinst_DATA): Use it to only enable this when building
from Git.

Change-Id: I09a90a59a4933a8cdb04124467d38209171f2a57

1 files changed, 5 insertions, 0 deletions

diff --git a/Makefile.am b/Makefile.am
index 25b3eb3378c..98008c528de 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1241,7 +1241,12 @@ COMMIT_MSG_MAGIC = VGhpcyBpcyB0aGUgY29tbWl0LW1zZyBob29rIG9mIEd1aXg=
         cp etc/git/commit-msg $@; \
         fi
 
+# The etc/git/ config files are not distributed and have no use when building
+# from a tarball.  Do not add dependencies on these to *_DATA when building
+# from a tarball, as that breaks the build.
+if in_git_p
 nodist_noinst_DATA = .git/hooks/pre-push .git/config .git/hooks/commit-msg
+endif
 
 # Downloading up-to-date PO files.