Suppress duplicated definition warnings for conditional compilation

[sehHeiden]

From my university I got an latex template.

It's multilingual in that sense, that it uses ifgerman and only uses one of the newcommands.

Still I get the warning: Command '\thesiskind' is defined multiple times

Code example:

\ifgerman{\newcommand{\thesiskind}{Masterarbeit}}{\newcommand{\thesiskind}{Master's Thesis}}

I assume this is not top priority.

[PHPirates]

Thanks for the suggestion. We implemented similar things in #3760 and #3810, however this is not a built-in \if-like command, but it is defined as
\newcommand{\ifgerman}[2]{\ifx\@german\@undefined #2 \else #1 \fi}

which means that if we want to support this, we need to introspect the definition, and find that the \ifgerman command has two arguments which are mutually exclusive.
I don't see an easy way of doing that generally at the moment, and I don't want to spend too much time on it because there already exists a proper LaTeX way to do this: actually define \ifgerman as an if, with \newif\ifgerman, set it to false when appropriate, and then use the \ifgerman ... \else ... \fi construct, which we already support I believe.