Question

我相信我正在处理某种已损坏的库。我写了以下代码：

//helloworld.c                                                                  

#include <stdio.h>

int main()
{
  printf("Hello, world!\n");

  return 0;
}

使用以下命令编译它：

gcc helloworld.c

我得到的错误很多。这是一个示例：

/usr/include/stdio.h:510: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:514: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘__wur’
/usr/include/stdio.h:517: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘__THROW’
/usr/include/stdio.h:524: error: expected declaration specifiers before ‘__END_NAMESPACE_C99’
/usr/include/stdio.h:534: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:540: error: storage class specified for parameter ‘getchar’
/usr/include/stdio.h:541: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:553: error: storage class specified for parameter ‘getchar_unlocked’
/usr/include/stdio.h:563: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:567: error: expected declaration specifiers before ‘__BEGIN_NAMESPACE_STD’
/usr/include/stdio.h:576: error: expected declaration specifiers or ‘...’ before ‘FILE’
/usr/include/stdio.h:576: error: storage class specified for parameter ‘putc’
/usr/include/stdio.h:582: error: storage class specified for parameter ‘putchar’
/usr/include/stdio.h:583: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:604: error: expected declaration specifiers or ‘...’ before ‘FILE’
/usr/include/stdio.h:604: error: storage class specified for parameter ‘putc_unlocked’
/usr/include/stdio.h:605: error: storage class specified for parameter ‘putchar_unlocked’
/usr/include/stdio.h:612: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:615: error: expected declaration specifiers or ‘...’ before ‘FILE’
/usr/include/stdio.h:615: error: storage class specified for parameter ‘putw’
/usr/include/stdio.h:619: error: expected declaration specifiers before ‘__BEGIN_NAMESPACE_STD’
/usr/include/stdio.h:632: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘__wur’
/usr/include/stdio.h:633: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:661: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘getdelim’
/usr/include/stdio.h:671: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘getline’
/usr/include/stdio.h:677: error: expected declaration specifiers before ‘__BEGIN_NAMESPACE_STD’
/usr/include/stdio.h:688: error: storage class specified for parameter ‘puts’
/usr/include/stdio.h:695: error: expected declaration specifiers or ‘...’ before ‘FILE’
/usr/include/stdio.h:695: error: storage class specified for parameter ‘ungetc’
/usr/include/stdio.h:702: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘fread’
/usr/include/stdio.h:708: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘fwrite’
/usr/include/stdio.h:710: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:732: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘fwrite_unlocked’
/usr/include/stdio.h:737: error: expected declaration specifiers before ‘__BEGIN_NAMESPACE_STD’
/usr/include/stdio.h:747: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:752: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:753: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:771: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ftello’
/usr/include/stdio.h:785: error: expected declaration specifiers before ‘__BEGIN_NAMESPACE_STD’
/usr/include/stdio.h:796: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:808: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:821: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:823: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:824: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:829: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:830: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:834: error: expected declaration specifiers before ‘__BEGIN_NAMESPACE_STD’
/usr/include/stdio.h:840: error: expected declaration specifiers before ‘__END_NAMESPACE_STD’
/usr/include/stdio.h:846:30: error: bits/sys_errlist.h: No such file or directory
/usr/include/stdio.h:856: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:866: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
/usr/include/stdio.h:872: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:878: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘__THROW’
/usr/include/stdio.h:906: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:910: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:913: error: expected ‘)’ before ‘*’ token
/usr/include/stdio.h:936: error: expected declaration specifiers before ‘__END_DECLS’
helloworld.c:10: error: old-style parameter declarations in prototyped function definition
helloworld.c:10: error: expected ‘{’ at end of input

FWIW，我正在运行Ubuntu 11.10;一个相当新的安装。我认为在安装时我没有做过什么，但我之前从未遇到过这个问题。我将不胜感激任何建议，并且可以回答您可能提出的任何问题，以帮助我澄清/缩小问题范围。再次感谢！

编辑：谢谢你的建议，伙计们，但我还是迷路了。我已经卸载/重新安装了libc-dev-bin，libc6-dev，gcc和dpkg。我建议我问包管理员crt1.o和crti.o在哪里，但我恐怕不知道怎么做。

除了重新安装Ubuntu之外，是否有一种完全重建所有库和头文件的万无一失的蛮力方法？如果没有，我可能会决定重新安装。

Answer 1

您几乎必须拥有一组损坏的头文件。要确认，请尝试以下操作：

extern int printf(char *, ...);
int main() {
    printf("hello world!\n");
    return 0;
}

如果这个编译干净，不知何故stdio.h或其中包含的一个文件已损坏。如果输出二进制文件运行并产生预期的输出，那么乍一看库本身看起来还不错。

helloworld.c无法编译100多个错误

1 个答案: