/Zl (Omit Default Library Name)
The latest version of this topic can be found at -Zl (Omit Default Library Name).
Omits the default C runtime library name from the .obj file. By default, the compiler puts the name of the library into the .obj file to direct the linker to the correct library.
Syntax
/Zl
Remarks
For more information on the default library, see Use Run-Time Library.
You can use /Zl to compile .obj files you plan to put into a library. Although omitting the library name saves only a small amount of space for a single .obj file, the total space saved is significant in a library that contains many object modules.
This option is an advanced option. Setting this option removes certain C Runtime library support that may be required by your application, resulting in link-time errors if your application depends on this support. If you use this option you must provide the required components in some other way.
Use /NODEFAULTLIB (Ignore Libraries). to direct the linker to ignore library references in all .obj files.
For more information, see CRT Library Features.
When compiling with /Zl, _VC_NODEFAULTLIB is defined. For example:
// vc_nodefaultlib.cpp
// compile with: /Zl
void Test() {
#ifdef _VC_NODEFAULTLIB
int i;
#endif
int i; // C2086
}
To set this compiler option in the Visual Studio development environment
Open the project's Property Pages dialog box. For details, see How to: Open Project Property Pages.
Click the C/C++ folder.
Click the Advanced property page.
Modify the Omit Default Library Names property.
To set this compiler option programmatically
- See OmitDefaultLibName.