cmake HAVE_VARARGS_H examples

alibaba/AliSQL configure.cmake :400 

CHECK_INCLUDE_FILES (varargs.h HAVE_VARARGS_H)

arkdb/arkproxy configure.cmake :235 

CHECK_INCLUDE_FILES (varargs.h HAVE_VARARGS_H)

alibaba/AliSQLBackup configure.cmake :316 

CHECK_INCLUDE_FILES (varargs.h HAVE_VARARGS_H)

tbeu/matio cmake/compilerOptions.cmake :31 

check_include_file(varargs.h  HAVE_VARARGS_H)