Unit Testing for BIRD

- Unit Testing Framework (BirdTest)
 - Integration of BirdTest into the BIRD build system
 - Tests for several BIRD modules

 Based on squashed Pavel Tvrdik's int-test branch, updated for
 current int-new branch.

sysdep/autoconf.h.in

@@ -67,4 +67,7 @@
 /* We have stdint.h */
 #undef HAVE_STDINT_H
 
+/* We have execinfo.h */
+#undef HAVE_EXECINFO_H
+
 #define CONFIG_PATH ?

sysdep/bsd/Makefile

@@ -3,3 +3,4 @@ obj := $(src-o-files)
 $(all-daemon)
 $(conf-y-targets): $(s)krt-sock.Y
 
+tests_objs := $(tests_objs) $(src-o-files)

sysdep/linux/Makefile

@@ -2,3 +2,5 @@ src := netlink.c
 obj := $(src-o-files)
 $(all-daemon)
 $(conf-y-targets): $(s)netlink.Y
+
+tests_objs := $(tests_objs) $(src-o-files)

sysdep/unix/Makefile

@@ -3,3 +3,6 @@ obj := $(src-o-files)
 $(all-daemon)
 $(cf-local)
 $(conf-y-targets): $(s)krt.Y
+
+src := $(filter-out main.c, $(src))
+tests_objs := $(tests_objs) $(src-o-files)