如何判断一个lib是用/ mt还是/ md编译的？ [英] How to tell if a lib was compiled with /mt or /md?

问题描述

给定一个编译的 lib ，是否有一种方法来判断是否编译了 / md 或 / mt 只需查看它（可能使用 dumpbin 工具）？

Given a compiled lib, is there a way to tell if it was compiled with /md or /mt just by looking at it (maybe with dumpbin tool)?

修改：
dumpbin / directives foo.lib 是 lib 未使用 / GL 开关编译。是否有一个选项来检查以这种方式优化的 lib 文件？

dumpbin /directives foo.lib is a solution for the case where the lib was not compiled with /GL switch. Is there an option to inspect a lib file that was optimized in such a way?

推荐答案

Microsoft编译器的一个非常好的功能是它保留用于将源文件编译为.obj文件的命令行。它允许你通过查看.lib文件，等待它，Notepad.exe找到它。只需搜索cl.exe。

A very nice feature of the Microsoft compiler is that it preserves the command line that was used to compile a source file into the .obj file. Which allows you to find it back by looking at the .lib file with, wait for it, Notepad.exe. Just search for "cl.exe".

例如，这是我在使用记事本打开一个名为Win32Project1.lib的示例库，我用VS2013 ：

For example, this is what I see when I use Notepad opened on a sample library named Win32Project1.lib that I built with VS2013:

C：\Program Files（x86）\ Microsoft Visual Studio 12.0 \VC\bin\CL.exe cmd -c -ZI -nologo -W3 -WX- -sdl -Od -Oy- -DWIN32 -D_DEBUG -D_LIB -DHELLO_STACKOVERFLOW -D_UNICODE -DUNICODE -Gm -EHs -EHc -RTC1 -MDd -GS -fp：precise -Zc：wchar_t -Zc：forScope -Ycstdafx.h -Fpc：\Users\hpass_000\documents\visual studio 2013\Projects\Win32Project1\Debug\Win32Project1.pch-Foc：\Users \hpass_000\documents\visual studio 2013\Projects\Win32Project1\Debug\-Fdc：\Users\hpass_000\documents\visual studio 2013\Projects\Win32Project1\ Debug \vc120.pdb-Gd -TP -analyze- -errorreport：prompt -IC：\Program Files（x86）\ Microsoft Visual Studio 12.0 \VC\include-IC：\程序文件（x86）\Microsoft Visual Studio 12.0 \VC\atlmfc\include-IC：\Program文件（x86）\Windows Kits\8.1 \Include\um-I C：\程序文件（x86）\Windows Kits \8.1 \Include \winrt - \\ X src stdafx.cpp pdb c：\Users\hpass_000\documents\visual studio 2013\Projects\Win32Project1\Debug\vc120.pdb

C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\CL.exe cmd -c -ZI -nologo -W3 -WX- -sdl -Od -Oy- -DWIN32 -D_DEBUG -D_LIB -DHELLO_STACKOVERFLOW -D_UNICODE -DUNICODE -Gm -EHs -EHc -RTC1 -MDd -GS -fp:precise -Zc:wchar_t -Zc:forScope -Ycstdafx.h -Fp"c:\Users\hpass_000\documents\visual studio 2013\Projects\Win32Project1\Debug\Win32Project1.pch" -Fo"c:\Users\hpass_000\documents\visual studio 2013\Projects\Win32Project1\Debug\" -Fd"c:\Users\hpass_000\documents\visual studio 2013\Projects\Win32Project1\Debug\vc120.pdb" -Gd -TP -analyze- -errorreport:prompt -I"C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include" -I"C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\atlmfc\include" -I"C:\Program Files (x86)\Windows Kits\8.1\Include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\Include\shared" -I"C:\Program Files (x86)\Windows Kits\8.1\Include\winrt" -X src stdafx.cpp pdb c:\Users\hpass_000\documents\visual studio 2013\Projects\Win32Project1\Debug\vc120.pdb

如你所知，我使用/ MDd编译

As you can tell, I compiled with /MDd

请注意.lib可能包含多个.obj文件， 。搜索-mt和-md可让您快速找到。

Do beware that a .lib can contain multiple .obj files with possibly different settings. Searching for "-mt" and "-md" lets you find out quickly.

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