Specifications

Linker Tools Messages Page 26 of 32
duplicate name "name" in order file; using last one
Order files specify the order you want the linker to load your functions. In your order file, a function
appears more than once, so the linker ignored all references to it except the last. For more information
on order files, see the /ORDER linker option.
Linker Tools Warning LNK4098
defaultlib "library" conflicts with use of other libs; use /NODEFAULTLIB:library
You are trying to link with incompatible libraries.
Note: The run-time libraries now contain directives to prevent mixing different types. You’ll receive
this warning if you try to use different types or debug and non-debug versions of the run-time library
in the same program. For example, if you compiled one file to use one kind of run-time library and
another file to use another kind (for example, single-threaded versus multithreaded) and tried to link
them, you’ll get this warning. You should compile all source files to use the same run-time library.
You can use the linker’s /VERBOSE:LIB switch to determine which libraries the linker is searching. If
you receive LNK4098 and want to create an executable file that uses, for example, the single-
threaded, non-debug run-time libraries, use the /VERBOSE:LIB option to find out which libraries the
linker is searching. The linker should print LIBC.LIB and not LIBCMT.LIB, MSVCRT.LIB,
LIBCD.LIB, LIBCMTD.LIB, or MSVCRTD.LIB as the libraries searched. You can tell the linker to
ignore the the incorrect run-time libraries by typing the incorrect libraries in the Ignore Libraries text
box on the Link tab of the Settings dialog box in the visual development environment or by using the
/NODEFAULTLIB:library option with LINK for each library you want to ignore. See the
/NODEFAULTLIB linker option for more information.
The table below shows which Visual C++ libraries should be ignored depending on which run-time
library you want to use.
To use this run-time library Ignore these libraries
Single-threaded (libc.lib)
libcmt.lib, msvcrt.lib, libcd.lib, libcmtd.lib,
msvcrtd.lib
Multithreaded (libcmt.lib) libc.lib, msvcrt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib
Multithreaded using DLL (msvcrt.lib) libc.lib, libcmt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib
Debug Single-threaded (libcd.lib)
libc.lib, libcmt.lib, msvcrt.lib, libcmtd.lib,
msvcrtd.lib
Debug Multithreaded (libcmtd.lib) libc.lib, libcmt.lib, msvcrt.lib, libcd.lib, msvcrtd.lib
Debug Multithreaded using DLL
(msvcrtd.lib)
libc.lib, libcmt.lib, msvcrt.lib, libcd.lib, libcmtd.lib
For example, if you received this warning and you want to create an executable file that uses the non-
debug, single-threaded version of the run-time libraries, you could use the following options with the
linker: /NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:libcd.lib
/NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:msvcrtd.lib
Linker Tools Warning LNK4099
PDB "filename" was not found with "object/library" or at "path"; linking object as if no debug info