build: fix VPATH issue

* Makefile.am (update-b4-copyright, update-package-copyright-year): Fix
path to build-aux.

diff --git a/Makefile.am b/Makefile.am
index a98611901aab7d267c0e6e54a61e932fcc27b145..2472011088812b9da4cf71b5de1e533e8691079c 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -78,12 +78,11 @@ dist-hook: gen-ChangeLog
 
 .PHONY: update-b4-copyright update-package-copyright-year
 update-b4-copyright:
-       find data -type f                    \
-         | grep -v -E '^data/bison.m4$$'    \
-         | xargs $(build_aux)/$@
+       find $(srcdir)/data -type f          \
+         | xargs $(srcdir)/build-aux/$@
        @echo 'warning: src/parse-gram.[hc] may need to be regenerated.'
 update-package-copyright-year:
-       $(build_aux)/$@ configure.ac
+       $(srcdir)/build-aux/$@ $(srcdir)/configure.ac
 
 gen_start_date = 2012-01-16
 .PHONY: gen-ChangeLog