extra quoting for special character

diff --git a/configure.ac b/configure.ac
index ccc38cafb2592e3221fb674e860d2477fbf5f468..b0940c965ea431beed52898ab72e16ea4d35560a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -482,7 +482,7 @@ fi
 AC_MSG_RESULT([$enable_static_binary])
 if test "$nable_static_binary" = yes; then
   if test "$target_os" = darwin; then
-    AC_MSG_ERROR([Statically-linked binaries are not supported on Mac OS.  See https://developer.apple.com/library/mac/#qa/qa2001/qa1118.html])
+    AC_MSG_ERROR([[Statically-linked binaries are not supported on Mac OS.  See https://developer.apple.com/library/mac/#qa/qa2001/qa1118.html]])
   fi
   if test "$enable_static" != yes; then
     enable_static=yes