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-rw-r--r--doc/gpg.texi6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/gpg.texi b/doc/gpg.texi
index 2b5467eed..1541edd3d 100644
--- a/doc/gpg.texi
+++ b/doc/gpg.texi
@@ -3787,6 +3787,12 @@ Operation is further controlled by a few environment variables:
loaded the Registry is tried and as last resort the native Windows
locale system is used.
+ @item GNUPG_BUILD_ROOT
+ @efindex GNUPG_BUILD_ROOT
+ This variable is only used by the regression test suite as a helper
+ under operating systems without proper support to figure out the
+ name of a process' text file.
+
@end table
When calling the gpg-agent component @command{@gpgname} sends a set of