build: Recommend using `&& echo it worked` to work around make

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/docs/build.rst b/docs/build.rst
index 98008ecb99dd6ab28d5bf6abc6446782c8aa0cbb..15ce23a912197dfac3686209e16b6bd97c139a5a 100644 (file)
--- a/docs/build.rst
+++ b/docs/build.rst
@@ -62,7 +62,10 @@ Build
 
      git clone https://salsa.debian.org/iwj/otter
      cd otter
-     make -j8 all bundled-sources
+     make -j8 all bundled-sources && echo it worked
+
+Expect to see ``it worked`` at the end.  If you don't see that, it
+failed, and the error message is buried in the scrollback.
 
 Build just the shape library preview
 ....................................