Localization problems

Well, here are some annoying problems related to some local settings, for example decimal point/comma.

US localization with decimal point

$ echo 123.2 |  gawk  '{print; print $1+1}'
124.2

SE localization with decimal comma

$ echo 123,2 |  gawk  '{print; print $1+1}'
124

SE localization with decimal comma - FIX

$ echo 123,2 | LC_NUMERIC=se_SE.utf-8 gawk --use-lc-numeric '{printf $1+1}'
124,2