On 11/5/19 7:30 AM, Alexander wrote:
> string(APPEND CMAKE_SHARED_LINKER_FLAGS " -DEF:\"foo_1.def\"
> -DEF111:\"foo_1.def\"")
This was the first you've mentioned using more than one copy of the flag.
I tested with this:
```
string(APPEND CMAKE_SHARED_LINKER_FLAGS "
-DEF:\"${CMAKE_CURRENT_SOURCE_DIR}/foo.def\"")
string(APPEND CMAKE_SHARED_LINKER_FLAGS "
-DEF:\"${CMAKE_CURRENT_SOURCE_DIR}/bar.def\"")
```
With the command-line generators like Ninja or NMake Makefiles, both flags
appear. With the Visual Studio generators, only the latter flag appears.
The reason is that CMake maps the `-DEF:` linker flag to the `.vcxproj`
file element `ModuleDefinitionFile` but only puts one value in it. The
MSBuild documentation for that field is here:
https://docs.microsoft.com/en-us/visualstudio/msbuild/link-task?view=vs-2019
and says "Specifies the name of a module definition file." AFAIK it only
supports one value. This is a limitation of MSBuild.
-Brad
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