Fails to build: LC_NUMERIC: undeclared identifier
On Xubuntu 20.04, compilation of the latest gthumb code from gitlab stops with the following error message.
87 | setlocale (LC_NUMERIC, "C"); // use always the dot as decimal separator
| ^~~~~~~~~~
../extensions/file_tools/gth-file-tool-color-picker.c:87:13: note: each undeclared identifier is reported only once for each function it appears in
[412/532] Compiling C object 'extensio...ile_tools@sha/gth-file-tool-flip.c.o'.
ninja: build stopped: subcommand failed.```
Edited by Andre Klapper