Fix make install with --disable-installed-tests

If installed tests are not enabled, installed_testdir is not
defined, so we end up trying to create /modules and to chmod
things in /x-content/, which is not right.

gio/tests/Makefile.am

@@ -542,5 +542,7 @@ giotypefuncs.c: Makefile
 	  $(SED) -e 's/^/*tp++ = /' -e 's/$$/ ();/' >> xgen-gio && \
 	  cp xgen-gio $@ # && rm -f xgen-gio xgen-giosrc.c
 
+if ENABLE_INSTALLED_TESTS
 install-data-hook:
 	$(AM_V_at) chmod a+x $(DESTDIR)$(installed_testdir)/x-content/win32-software/autorun.exe
+endif

gio/tests/modules/Makefile.am

@@ -7,16 +7,27 @@ LDADD = \
 	$(top_builddir)/glib/libglib-2.0.la             \
 	$(NULL)
 
-
 AM_CPPFLAGS = \
 	$(gio_INCLUDES) $(GLIB_DEBUG_FLAGS) 		\
 	-I$(top_builddir)/gio 				\
-	-I$(top_srcdir)/gio
+	-I$(top_srcdir)/gio				\
+	$(NULL)
 
-testmoduledir = $(installed_testdir)/modules
-testmodule_LTLIBRARIES = \
+modules =						\
 	libtestmodulea.la 				\
-	libtestmoduleb.la
+	libtestmoduleb.la				\
+	$(NULL)
+
+if ENABLE_ALWAYS_BUILD_TESTS
+noinst_LTLIBRARIES = $(modules)
+else
+check_LTLIBRARIES = $(modules)
+endif
+
+if ENABLE_INSTALLED_TESTS
+testmoduledir = $(installed_testdir)/modules
+testmodule_LTLIBRARIES = $(modules)
+endif
 
 libtestmodulea_la_SOURCES = test-module-a.c
 libtestmodulea_la_LIBADD = $(LDADD)