Add code to parse a debug category string
Use strdup to be able to use strtok on the category string and add
a test case. Also safe some more information to be able to use color
in the print statement.
diff --git a/tests/debug/Makefile.am b/tests/debug/Makefile.am
new file mode 100644
index 0000000..0cdf46a
--- /dev/null
+++ b/tests/debug/Makefile.am
@@ -0,0 +1,4 @@
+INCLUDES = $(all_includes) -I$(top_srcdir)/include
+noinst_PROGRAMS = debug_test
+
+debug_test_SOURCES = debug_test.c $(top_srcdir)/src/debug.c