Running xgettext on diff/patch files

[Cristian Rigamonti]

Hi, I'd like to run xgettext on some patches containing PHP code, to create a
.pot file containing only strings contained in the patches, instead of all
strings contained in the patched files.

However, xgettext silently ignores the diff/patch input file, creating an empty
output file. Renaming the input file with a .php extension doesn't help. It
seems that xgettext actually checks the syntax of the input file and refuses to
work on diff/patch files. Is this an intended behaviour or a bug?

So far, the only way I found is to trick xgettext appending a bogus "<?php" line
to the beginning of the patch, and removing any "?>" in it; but I guess if
there is a more orthodox way to do it...

Cri

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