If we use json_inttypes.h we are going to fail when builddir != srcdir,
and since JSON_C_HAVE_INTTYPES_H is defined after the configure script
has run, including json_inttypes.h would be the equivalent on including
stdint.h anyway.
This fixes the build of json-c in the GNOME Continuous builder.
AX_COMPILE_CHECK_SIZEOF(int)
AX_COMPILE_CHECK_SIZEOF(long)
-AX_COMPILE_CHECK_SIZEOF(size_t, [#include "json_inttypes.h"])
+AX_COMPILE_CHECK_SIZEOF(size_t, [#include <stdint.h>])
AC_CONFIG_FILES([
Makefile