Fix bundled gems installation when relative loading

1 files changed, 7 insertions, 3 deletions

diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index c40da1a4f3..7119022082 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -853,9 +853,6 @@ module RbInstall
     def write_cache_file
     end
 
-    def build_extensions
-    end if /mswin|mingw/ =~ RUBY_PLATFORM || RbConfig::CONFIG["CROSS_COMPILING"] == "yes"
-
     def shebang(bin_file_name)
       path = File.join(gem_dir, spec.bindir, bin_file_name)
       first_line = File.open(path, "rb") {|file| file.gets}
@@ -907,6 +904,13 @@ module RbInstall
       RbInstall.no_write(options) {super}
     end
 
+    if RbConfig::CONFIG["LIBRUBY_RELATIVE"] == "yes" || RbConfig::CONFIG["CROSS_COMPILING"] == "yes"
+      # TODO: always build extensions in bundled gems by build-ext and
+      # install the built binaries.
+      def build_extensions
+      end
+    end
+
     def generate_bin_script(filename, bindir)
       name = formatted_program_filename(filename)
       unless $dryrun