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-rwxr-xr-xscripts/sphinx-pre-install2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index b5f9fd5b2880..fe92020d67e3 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -259,7 +259,7 @@ sub get_sphinx_version($)
 
 	open IN, "$cmd --version 2>&1 |";
 	while (<IN>) {
-		if (m/^\s*sphinx-build\s+([\d\.]+)(\+\/[\da-f]+)?$/) {
+		if (m/^\s*sphinx-build\s+([\d\.]+)((\+\/[\da-f]+)|(b\d+))?$/) {
 			$ver=$1;
 			last;
 		}