[bug #231] check and include stdint.h, also add std=c99 to gcc CFLAGS

2005-11-14 Paul Jakma <paul.jakma@sun.com>

	* configure.ac: Tell gcc we like C99.
	  [bug #231] Check and test for stdint.h.
	* lib/zebra.h: [bug #231] include stdint, if its there.
4 files changed