Only handle build-errors when it's a build-error

Refs Homebrew/homebrew#15164.

1 files changed, 7 insertions, 0 deletions

diff --git a/Library/Homebrew/cmd/--config.rb b/Library/Homebrew/cmd/--config.rb
index 281b310cd..f72cbedff 100644
--- a/Library/Homebrew/cmd/--config.rb
+++ b/Library/Homebrew/cmd/--config.rb
@@ -112,6 +112,13 @@ module Homebrew extend self
     puts "X11: #{describe_x11}"
   end
 
+  def write_build_config f
+    $f = f
+    def Homebrew.puts(*foo); $f.puts(*foo); end
+    Homebrew.dump_build_config
+    class << Homebrew; undef :puts; end
+  end
+
   def dump_verbose_config
     puts "HOMEBREW_VERSION: #{HOMEBREW_VERSION}"
     puts "HEAD: #{head}"