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OPTLINK is the Digital Mars linker. It is used by D on Windows to link 32-bit OMF files.

Official website


Here is how to build OPTLINK from sources yourself.



1. Clone the OPTLINK sources from GitHub:

git clone https://github.com/DigitalMars/optlink.git
cd optlink

2. Put Microsoft's development tools on your PATH:

"[path to Microsoft Visual C/C++]\VC\bin\vcvars32.bat"


"C:\Program Files (x86)\Microsoft Visual Studio 8\VC\bin\vcvars32.bat"

3. Put ImageCFG and the DM bin directory on your PATH:

set PATH=[path to ImageCFG];%PATH%;[path to dmc.exe]

4. Ensure everything works:

nmake /?

5. Build OPTLINK. Note that [path to Digital Mars tools] should be the directory which contains "bin/dmc.exe", not the bin directory itself:

build_optlink.bat DM=[path to Digital Mars tools]

6. Ensure OPTLINK was built successfully:

os2link\objnt\link.exe /?