Visual C How to disable specific linker warnings

Question

I m using a library from CGAL which during the linking stage of my code compilation produces a lot of linking warnings of this form   warning LNK4099  PDB  vc80 pdb  was not found with  gmp-vc80-mt-sgd lib  or at  vc80 pdb   linking object as if no debug info   How do I turn off this specific linker warning under Visual C   Studio 2008   Note that I do not have any control on the external  CGAL  library which I am using  I cannot donot want to get into recompiling the external library  Hence  the need to fix the messages at my end

User · Accepted Answer

Add the following as a additional linker option     ignore 4099   This is in Properties- Linker- Command Line

User · Answer

For the benefit of others  I though I d include what I did   Since you cannot get Visual Studio  2010 in my case  to ignore the LNK4204 warnings  my approach was to give it what it wanted  the pdb files   As I was using open source libraries in my case  I have the code building the pdb files already   BUT  the default is to name all of the PDF files the same thing  vc100 pdb in my case  As you need a  pdb for each and every  lib  this creates a problem  especially if you are using something like ImageMagik  which creates about 20 static  lib files   You cannot have 20 lib files in one directory  which your application s linker references to link in the libraries from  and have all the 20  pdb files called the same thing   My solution was to go and rebuild my static library files  and configure VS2010 to name the  pdb file with respect to the PROJECT   This way  each  lib gets a similarly named  pdb  and you can put all of the LIBs and PDBs in one directory for your project to use   So for the  Debug  configuraton  I edited   Properties- Configuration Properties -  C C   -  Output Files -  Program Database File Name from    IntDir vc  PlatformToolsetVersion  pdb  to be the following value     OutDir vc  PlatformToolsetVersion D  ProjectName  pdb  Now rather than somewhere in the intermediate directory  the  pdb files are written to the output directory  where the  lib files are also being written  AND most importantly  they are named with a suffix of D project name   This means each library project produduces a project  lib and a project specific  pdb   I m now able to copy all of my release  lib files  my debug  lib files and the debug  pdb files into one place on my development system  and the project that uses that 3rd party library in debug mode  has the pdb files it needs in debug mode

User · Answer

EDIT  don t use vc80   Visual Studio 2005  but Visual Studio 2008   vc90 versions of the CGAL library  maybe from here    Linker Tools Warning LNK4099      You could also compile with  Z7  so   the pdb doesn t need to be used  or   remove the  DEBUG linker option if you   do not have  pdb files for the objects   you are linking

User · Answer

Update 2018-10-16  Reportedly  as of VS 2013  this warning can be disabled   See the comment by  Mark Ransom   Original Answer  You can t disable that specific warning   According to Geoff Chappell the 4099 warning is treated as though it s too important to ignore  even by using in conjunction with  wx  which would treat warnings as errors and ignore the specified warning in other situations    Here is the relevant text from the link      Not Quite Unignorable Warnings      For some warning numbers  specification in a  ignore option is   accepted but not necessarily acted upon  Should the warning occur   while the  wx option is not active  then the warning message is still   displayed  but if the  wx option is active  then the warning is   ignored  It is as if the warning is thought important enough to   override an attempt at ignoring it  but not if the user has put too   high a price on unignored warnings       The following warning numbers are affected   4200  4203  4204  4205  4206  4207  4208  4209  4219  4231 and 4237

User · Answer

For the record and before the thread disappears on the msdn forums  You can t disable the warning  at least under VS2010  because it is on the list of the warnings that can t be disabled  so  wd4099 will not work   but what you can do instead is patch link exe  usually C  Program Files  x86  Microsoft Visual Studio 10 0 VC bin link exe  to remove it from said list   Sounds like a jackhammer  i know  It works though   For instance  if you want to remove the warning for 4099  open link exe with an hex editor  goto line 15A0 which reads 03 10  little endian for 4099  and replace it with FF 00  which does not exist

User · Answer

The PDB file is typically used to store debug information  This warning is caused probably because the file vc80 pdb is not found when linking the target object file  Read the MSDN entry on LNK4099 here   Alternatively  you can turn off debug information generation from the Project Properties   Linker   Debugging   Generate Debug Info field

User · Answer

You cannot disable linker warning 4099  as said  John Weldon   You should rebuild library with some project configuration changes  You have several options    Save PDB file with debug information is same folder where you save  lib file  Set value    OutDir   TargetName  pdb  to Properties- C C  - Output Files-Program Database File Name Save debug information in  lib file  Set value  C7 compatible   Z7   to Properties- C C  - General- Debug Information Format Disable generation debug information for this library  Remove value from Properties- C C  - General- Debug Information Format

User · Answer

I suspect  ignore is a VC6 link exe option  for VS2005 and VS2008 s linker there s no documented  ignore option available  but the linker looks just ignore the   ignore XXX  option  no error and no effect

[visual-studio] Visual C++: How to disable specific linker warnings?

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