Fix time·zone handling

The variable `UTC0` was mistakenly exported, instead of `TZ` (which has
the _value_ `UTC0` and controls the time·zone of Posix commands).

diff --git a/GNUmakefile b/GNUmakefile
index f7809ed774f0e01ea81d10fe8a20f857b26664d3..fac149164e2a1152f8c83d22ab496702c2a3dbf6 100644 (file)
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -275,7 +275,7 @@ export LC_ALL
 
 # Posix timezone information.
 TZ := UTC0
-export UTC0
+export TZ
 
 # The default target for this makefile.
 .DEFAULT_GOAL := all