(TESTS): List tests explicitely instead of using a wildcard.

Wildcards don't seem to work for VPATH "make dist"s.

test-suite/Makefile.am

@@ -1 +1,42 @@
-EXTRA_DIST = guile-test lib.scm tests/*.test tests/asmobs tests/c-api
+TESTS = tests/alist.test			\
+	tests/asmobs				\
+	tests/bit-operations.test		\
+	tests/c-api				\
+	tests/c-api.test			\
+	tests/chars.test			\
+	tests/common-list.test			\
+	tests/environments.test			\
+	tests/eval.test				\
+	tests/exceptions.test			\
+	tests/format.test			\
+	tests/gc.test				\
+	tests/getopt-long.test			\
+	tests/goops.test			\
+	tests/guardians.test			\
+	tests/hooks.test			\
+	tests/import.test			\
+	tests/interp.test			\
+	tests/list.test				\
+	tests/load.test				\
+	tests/multilingual.nottest		\
+	tests/numbers.test			\
+	tests/optargs.test			\
+	tests/ports.test			\
+	tests/r4rs.test				\
+	tests/reader.test			\
+	tests/regexp.test			\
+	tests/srfi-10.test			\
+	tests/srfi-13.test			\
+	tests/srfi-14.test			\
+	tests/srfi-19.test			\
+	tests/srfi-4.test			\
+	tests/srfi-9.test			\
+	tests/strings.test			\
+	tests/symbols.test			\
+	tests/syncase.test			\
+	tests/syntax.test			\
+	tests/time.test				\
+	tests/version.test			\
+	tests/weaks.test
+
+EXTRA_DIST = guile-test lib.scm $(TESTS)