build: Add 'make check'.

* Makefile.am (TESTS, TEST_EXTENSIONS, SCM_LOG_COMPILER): New
  variables.
  (CLEANFILES): Add the .log files.

.gitignore

@@ -12,3 +12,6 @@ Makefile.in
 /Makefile
 /config.log
 /gnu/gnunet/config.scm
+/*.log
+/tests/*.log
+/tests/*.trs

Makefile.am

@@ -30,7 +30,6 @@ MODULES =					\
   gnu/gnunet/fs/uri.scm
 
 GOBJECTS = $(MODULES:%.scm=%.go) gnu/gnunet/config.go
-CLEANFILES = $(GOBJECTS)
 
 nobase_dist_guilemodule_DATA = $(MODULES)
 nobase_nodist_guilemodule_DATA = $(GOBJECTS)
@@ -69,3 +68,18 @@ SUFFIXES = .go
 # for details.
 guix_install_go_files = install-nobase_nodist_guilemoduleDATA
 $(guix_install_go_files): install-nobase_dist_guilemoduleDATA
+
+TESTS =						\
+  tests/binding-utils.scm			\
+  tests/configuration.scm			\
+  tests/container-metadata.scm			\
+  tests/fs.scm					\
+  tests/identity.scm				\
+  tests/progress-info.scm			\
+  tests/system-foreign-unions.scm		\
+  tests/uri.scm
+
+TEST_EXTENSIONS = .scm
+SCM_LOG_COMPILER = $(top_builddir)/pre-inst-env $(GUILE)
+
+CLEANFILES = $(GOBJECTS) $(SCM_TESTS:tests/%.scm=%.log)