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-rw-r--r--pkgs/development/interpreters/ruby/ruby-1.8.7.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/pkgs/development/interpreters/ruby/ruby-1.8.7.nix b/pkgs/development/interpreters/ruby/ruby-1.8.7.nix
index 3c2ea71ecf26..0ae1d1261eed 100644
--- a/pkgs/development/interpreters/ruby/ruby-1.8.7.nix
+++ b/pkgs/development/interpreters/ruby/ruby-1.8.7.nix
@@ -60,6 +60,9 @@ stdenv.mkDerivation rec {
   ];
 
   configureFlags = [ "--enable-shared" "--enable-pthread" ]
+    # Without this fails due to not finding X11/Xlib.h
+    # Not sure why this isn't required on Linux
+    ++ ops stdenv.isDarwin [ "--without-tcl" "--without-tk" ]
     ++ op useRailsExpress "--with-baseruby=${baseruby}/bin/ruby";
 
   installFlags = stdenv.lib.optionalString docSupport "install-doc";