build: manually update bootstrap from gnulib, and adapt

[bison.git] / etc / prefix-gnulib-mk

diff --git a/etc/prefix-gnulib-mk b/etc/prefix-gnulib-mk
index 3ea9f5bdba822c75f91c98f2dde3d4b0b75b23c0..4debcb931833e361b00b7df36bc350145b1b85ba 100755 (executable)
--- a/etc/prefix-gnulib-mk
+++ b/etc/prefix-gnulib-mk
@@ -26,7 +26,7 @@ sub prefix_word ($)
 {
   local ($_) = @_;
   $_ = $prefix . $_
-    unless m{^\$\(\w+\)} || $_ eq "Makefile";
+    unless /^-/ || m{^\$\(\w+\)} || $_ eq "Makefile" || $_ eq '\\';
   return $_;
 }