[ISSUE] `webkit2gtk` fails to crossbuild for `armv6l-musl`

[chrysos349 <chrysos349@users.noreply.github.com>]

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New issue by chrysos349 on void-packages repository

https://github.com/void-linux/void-packages/issues/48747

Description:
### Is this a new report?

Yes

### System Info

Void 6.6.16_1 x86_64 GenuineIntel/VM uptodate hold rrFFFFFF

### Package(s) Affected

webkit2gtk-2.40.0_4

### Does a report exist for this bug with the project's home (upstream) and/or another distro?

_No response_

### Expected behaviour

Be able to crossbuild `webkit2gtk` for `armv6l-musl` via `xbps-src`

### Actual behaviour

Crossbuilding gets stuck generating WebKit2WebExtension-4.1.typelib

```
[5855/5860] Building C object Tools/MiniBrowser/gtk/CMakeFiles/MiniBrowser.dir/BrowserWindow.c.o
../Tools/MiniBrowser/gtk/BrowserWindow.c: In function 'browserWindowCreateBackForwardMenu':
../Tools/MiniBrowser/gtk/BrowserWindow.c:257:54: warning: format '%lu' expects argument of type 'long unsigned int', but argument 2 has type 'guint64' {aka 'long long unsigned int'} [-Wformat=]
  257 |         char *actionName = g_strdup_printf("action-%lu", ++actionId);
      |                                                    ~~^   ~~~~~~~~~~
      |                                                      |   |
      |                                                      |   guint64 {aka long long unsigned int}
      |                                                      long unsigned int
      |                                                    %llu
[5856/5860] Linking C executable bin/MiniBrowser
[5857/5860] Generating WebKit2WebExtension-4.1.gir
[5858/5860] Generating WebKit2WebExtension-4.1.typelib
```

### Steps to reproduce

1. Clone repo, bootstrap, etc.
2. Run `./xbps-src -a armv6l-musl pkg webkit2gtk`
3. Wait till eternity

P.S. Of course, I use clean masterdir.
P.P.S. The latest webkit2gtk has the same problem generating typelib file for armv6l-musl.