WiX: fix race condition in WixConfig generation and inclusion
Although the WixConfig
class can switch between RUNTIME
and DEVEL
types
for generating the configuration files, both are written to the same
Config.wxi file.
This commit fixes it by deduplicating them and letting MSI._add_include
handle the inclusion appropriately.
Fixes the MSI packages both being called "GStreamer 1.0 (Development Files)", the suffix only corresponds to the -devel MSI.