Make mc.exe (Message Compiler) optional, for supporting MinGW cross-compiling

[qwertychouskie]

Currently POCO will not build on systems without mc.exe. This is fine on Windows systems, where the Windows SDK can just be installed. However, this creates problems for cross-compiling Windows binaries on Linux. A pre-made header (see https://github.com/pocoproject/poco/issues/2356#issuecomment-473149465 for one made for 1.9.0) should be included, and used whenever mc.exe is not available.

[zosrothko]

Why don't you develop an portable Message Compiler compliant with the Windows Message Compiler? (With Poco of course!)

[qwertychouskie]

Seems overkill just for a header or two that need to be generated. Just including the header is a much simpler change.

[mydatamodels]

In package mingw64-binutils-2.30-6.fc30.x86_64.rpm there is /usr/bin/x86_64-w64-mingw32-windmc, but to let it find by Poco cmake I had to create a symbolic link to mc.exe

[ark0f]

MinGW has windmc.exe for same purposes. Here is example how it can look.

[iuridiniz]

In order to compile in ubuntu, I have to do:

ln -s /usr/bin/x86_64-w64-mingw32-windmc /usr/bin/mc.exe

[github-actions[bot]]

This issue is stale because it has been open for 365 days with no activity.

[akshaybabloo]

Poco unable to find windmc.exe, had to rename the file to mc.exe to work. This is in Windows using Conan.

[nwrkbiz]

It also works by simply specifying the full path to cmake via -DCMAKE_MC_COMPILER=/path/to/x86_64-w64-mingw32-windmc

So I would not consider this as issue.

[github-actions[bot]]

This issue is stale because it has been open for 365 days with no activity.

[github-actions[bot]]

This issue was closed because it has been inactive for 60 days since being marked as stale.