co/: add AX_CREATE_STDINT_H to get correct type definitions for a52dec in _stdint.h.

Original commit message from CVS:
2004-02-03  Benjamin Otte  <in7y118@public.uni-hamburg.de>

* common/m4/ax_create_stdint_h.m4:
* configure.ac:
add AX_CREATE_STDINT_H to get correct type definitions for a52dec in
_stdint.h.
* Makefile.am:
remove generated _stdint.h in DISTCLEANFILES
* ext/a52dec/gsta52dec.c:
include _stdint.h for a52dec. (should fix #133064)
diff --git a/Makefile.am b/Makefile.am
index db020ef..97ba31f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -38,6 +38,8 @@
 	   AUTHORS COPYING COPYING.LIB README RELEASE REQUIREMENTS \
 	   ChangeLog autogen.sh common m4
 
+DISTCLEANFILES=_stdint.h
+
 dist-hook:
 	rm -rf `find $(distdir)/common -name CVS`
 	rm -rf `find $(distdir)/m4 -name CVS`