X-Git-Url: https://git.distorted.org.uk/~mdw/cfd/blobdiff_plain/1f74bcf6852709029674ec167b02502449ad8f36..4fd54ed3c8cedc3f4d3fbe7f51a24eaaaa391aff:/mdw-setup

diff --git a/mdw-setup b/mdw-setup
index f60a45e..ab62f09 100755
--- a/mdw-setup
+++ b/mdw-setup
@@ -89,7 +89,7 @@ if [ "$configure" ]; then
   autoconf --force
   if grep >/dev/null 'AC_CONFIG_AUX_DIR' $configure; then
     auxdir=$(
-      sed -n 's:^.*AC_CONFIG_AUX_DIR(\[\?\([^])]*\)\]\?).*$:\1:p' $configure)
+      sed -n 's:^.*AC_CONFIG_AUX_DIR(\[\{0,1\}\([^])]*\)\]\{0,1\}).*$:\1:p' $configure)
     mkdir -p $auxdir
   fi
   grep >/dev/null 'A[MC]_CONFIG_HEADER' $configure && autoheader