* lib/mkmf.rb (configuration): fixing gsub when multiple error flags

  are passed to GCC.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 16 insertions, 0 deletions

diff --git a/test/mkmf/test_find_executable.rb b/test/mkmf/test_find_executable.rb
index 5ccec880fd..132330bf7c 100644
--- a/test/mkmf/test_find_executable.rb
+++ b/test/mkmf/test_find_executable.rb
@@ -2,6 +2,22 @@ require_relative 'base'
 
 class TestMkmf
   class TestFindExecutable < TestMkmf
+    def test_valid_warnflags
+      val = $extmk
+      begin
+        makefile = mkmf do
+          $extmk = false
+          self.class::CONFIG['warnflags'] = "-Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Werror=pointer-arith -Werror=write-strings -Werror=declaration-after-statement -Werror=shorten-64-to-32"
+          self.class::CONFIG['GCC'] = 'yes'
+          configuration '.'
+        end
+        generated_flags = makefile.grep(/warnflags/).first[/^warnflags = .*$/]
+        assert_equal "warnflags = -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wshorten-64-to-32", generated_flags
+      ensure
+        $extmk = val
+      end
+    end
+
     def test_find_executable
       bug2669 = '[ruby-core:27912]'
       path, ENV["PATH"] = ENV["PATH"], path