Added AC_CHECK_HEADER_STDBOOL to configure.ac

Author: Robin Müller

configure.ac

@@ -17,6 +17,7 @@ AC_CHECK_HEADERS([fcntl.h stddef.h stdint.h stdlib.h string.h unistd.h])
 AC_CHECK_HEADERS([linux/input.h linux/uinput.h], [], [AC_MSG_ERROR([The linux header files are required])])
 
 # Checks for typedefs, structures, and compiler characteristics.
+AC_CHECK_HEADER_STDBOOL
 AC_TYPE_INT32_T
 AC_TYPE_SIZE_T
 AC_TYPE_UINT32_T