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解决zlib编译不过

2008-08-10 22:00:27| 分类： C/C++ | 标签： |举报 |字号大中小订阅

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zlib是个很牛的东东,从http://www.zlib.net/可以获取到源码,但在VS2008下编译会报错:error PRJ0019: 某个工具从以下位置返回了错误代码: "Assembling...", 翻开BuildLog.htm查看其编译命令行ml.exe /nologo /c /coff /Cx /Zi /Fo".\Win32_DLL_ASM_Debug\inffas32.obj" "前面是我的路径\zlib123\contrib\masmx86\inffas32.asm", 然后将该命令放在"VS2008命令行提示"控制台下运行,报错的具体情况就很明显啦:

E:提示符>ml.exe /nologo /c /coff /Cx/Zi /Fo".\Win32_DLL_ASM_Debug\inffas32.obj" "我的路径\zlib123\contrib\masmx86\inffas32.asm"
Assembling: E:\开源项目\压缩\zlib 1.2.3\zlib123\contrib\masmx86\inffas32.asm
我的路径\zlib123\contrib\masmx86\inffas32.asm(647) : error A2070:invalid instruction operands
我的路径\zlib123\contrib\masmx86\inffas32.asm(649) : error A2070:invalid instruction operands
我的路径\zlib123\contrib\masmx86\inffas32.asm(663) : error A2070:invalid instruction operands
我的路径\zlib123\contrib\masmx86\inffas32.asm(720) : error A2070:invalid instruction operands

查下MSDN:

ML Nonfatal Error A2070

invalid instruction operands

One or more operands were not valid for the instruction with which they were specified.

(这个解释基本属于废话)

上网一查，发现别人也遇到相同的问题：http://svn.haxx.se/dev/archive-2005-11/0942.shtml。原因在于

It (Microsoft Macro Assembler 8.0, included with Visual C++ 2005 Express ) refuses to assemble a MOVD instruction with a memory operand with an implied size, and requires that "dword ptr" prefix the memory operand.

微软说这是by design，不是bug：

http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx?feedbackid=6306f7dc-2cc2-4591-bd60-5d802178fdfa

解决办法是把inffas32.asm中的4处出错的类似

movd mm4, [esp+0]

的汇编代码，添加dword ptr修饰符，改为

movd mm4,dword ptr [esp+0]

这样就能顺利编译、通过测试了。

参考:http://www.cppblog.com/tx7do/archive/2007/10/12/34014.aspx

2012-7-21

在以静态库方式使用zlib-1.2.6时，发现LNK2019报错:

error LNK2019: 无法解析的外部符号 _deflateEnd
error LNK2019: 无法解析的外部符号 _deflate
error LNK2019: 无法解析的外部符号 _deflateInit_
error LNK2019: 无法解析的外部符号 _inflateEnd
error LNK2019: 无法解析的外部符号 _inflate
error LNK2019: 无法解析的外部符号 _inflateInit_

经查需要在使用时定义ZLIB_WINAPI宏:

#ifdef _WIN32
#define ZLIB_WINAPI
#endif
#include "zlib.h"

参考: Zlib and LNK2019: unresolved external symbol

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