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-rwxr-xr-xconfigure4
1 files changed, 3 insertions, 1 deletions
diff --git a/configure b/configure
index 9b1f5b33e4..25f7d91572 100755
--- a/configure
+++ b/configure
@@ -4942,7 +4942,9 @@ has_sphinx_build() {
     # sphinx-build doesn't exist at all or if it is too old.
     mkdir -p "$TMPDIR1/sphinx"
     touch "$TMPDIR1/sphinx/index.rst"
-    "$sphinx_build" $sphinx_werror -c "$source_path/docs" -b html "$TMPDIR1/sphinx" "$TMPDIR1/sphinx/out" >/dev/null 2>&1
+    "$sphinx_build" $sphinx_werror -c "$source_path/docs" \
+                    -b html "$TMPDIR1/sphinx" \
+                    "$TMPDIR1/sphinx/out"  >> config.log 2>&1
 }
 
 # Check if tools are available to build documentation.