tests: robustify gen_tests.sh against in-tree builds

* tests/gen_tests.sh: Use abs_srcdir instead of srcdir to construct
a path to gen_tests.sh in implicit make rules.

diff --git a/tests/gen_tests.sh b/tests/gen_tests.sh
index e70bccbeb01aefa62058043625e25cf2d5dfc877..a726c07acb9315c0e44ed785f2f6cebe2deb6396 100755 (executable)
--- a/tests/gen_tests.sh
+++ b/tests/gen_tests.sh
@@ -92,7 +92,7 @@ if [ -n "$names" ]; then
                printf ' %s.gen.test' $names
                echo
                target='$(srcdir)/%s.gen.test'
-               dep1='$(srcdir)/gen_tests.sh'
+               dep1='$(abs_srcdir)/gen_tests.sh'
                dep2='$(srcdir)/gen_tests.in'
                recipe='$(AM_V_GEN) $^ $@'
                printf "\\n$target: $dep1 $dep2\\n\\t$recipe\\n" $names