Add missing Makefile.am

This commit was SVN r394.

test/support/Makefile.am

@@ -0,0 +1,11 @@
+#
+# $HEADER$
+#
+
+include $(top_srcdir)/config/Makefile.options
+
+noinst_LTLIBRARIES = libsupport.la
+
+libsupport_la_SOURCES = \
+        support.c \
+        support.h