add cgo test that doesn't depend on
non-standard libraries and add to build.

R=r
DELTA=211  (210 added, 0 deleted, 1 changed)
OCL=35293
CL=35307
diff --git a/src/run.bash b/src/run.bash
index c8f5d0c..99ba599 100755
--- a/src/run.bash
+++ b/src/run.bash
@@ -50,6 +50,11 @@
 time make test
 ) || exit $?
 
+(xcd ../misc/cgo/stdio
+make clean
+test.bash
+) || exit $?
+
 (xcd ../usr/austin/ogle
 make clean
 time make ogle