Rename localtime.c.patched to localtime.patched.c to keep the correct language suffix. Create localtime.patched.c in the build dir rather than in the source dir. Decouple the build rule for creating localtime.patched.c from the rule to build localtime.o, so we don't have to rebuild the patched source file all the time. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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