doc: improve note on choosing posix mingw32

This commit is contained in:
Jarol Rodriguez 2021-05-27 15:22:46 -04:00
parent 5c041cb348
commit dafab2b1b3

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@ -81,9 +81,26 @@ The first step is to install the mingw-w64 cross-compilation tool chain:
sudo apt install g++-mingw-w64-x86-64
Ubuntu Bionic 18.04 <sup>[1](#footnote1)</sup>:
Next, set the default `mingw32 g++` compiler option to POSIX<sup>[1](#footnote1)</sup>:
sudo update-alternatives --config x86_64-w64-mingw32-g++ # Set the default mingw32 g++ compiler option to posix.
```
sudo update-alternatives --config x86_64-w64-mingw32-g++
```
After running the above command, you should see output similar to that below.
Choose the option that ends with `posix`.
```
There are 2 choices for the alternative x86_64-w64-mingw32-g++ (providing /usr/bin/x86_64-w64-mingw32-g++).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/bin/x86_64-w64-mingw32-g++-win32 60 auto mode
* 1 /usr/bin/x86_64-w64-mingw32-g++-posix 30 manual mode
2 /usr/bin/x86_64-w64-mingw32-g++-win32 60 manual mode
Press <enter> to keep the current choice[*], or type selection number:
```
Once the toolchain is installed the build steps are common: