Added back.

test/Makefile.am

@@ -0,0 +1,10 @@
+if BUILD_TEST_PHYSFS
+
+bin_PROGRAMS = test_physfs
+
+INCLUDES = -I$(top_srcdir)
+
+test_physfs_LDADD = ../libphysfs.la
+test_physfs_SOURCES = test_physfs.c
+
+endif