Create a tests subdirectory and move one of the test to there.
diff --git a/Makefile.am.inc b/Makefile.am.inc
new file mode 100644
index 0000000..b1ebce8
--- /dev/null
+++ b/Makefile.am.inc
@@ -0,0 +1,2 @@
+AM_CFLAGS = -Wall -Wwrite-strings -Werror -std=gnu99 -D_GNU_SOURCE -D_REENTRANT
+