怎么找不到stdarg.h这个 文件呢？

高原之狼

$ cat /usr/lib/gcc-lib/i386-linux/2.95.4/include/README
This README file is copied into the directory for GCC-only header files when fixincludes is run by the makefile for GCC.

Many of the files in this directory were made from the standard system header files of this system by the shell script `fixincludes'. They are system-specific, and will not work on any other kind of system. They are also not part of GCC.  The reason for making the files here is to fix the places in the header files which use constructs that are incompatible with ANSI C.