ngoto	2018-05-12 02:21:37 +0900 (Sat, 12 May 2018)

  New Revision: 63401

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63401

  Log:
    configure.ac: remove ineffective check on Solaris with GCC
    
    * configure.ac (solaris): Remove ineffective check for -std=iso9899:1999
      on Solaris with GCC. The "-std=iso9899:1999" was replaced by
      "-std=gnu99" by the commit r54895. The check is no longer effective
      after that, and two years have passed without error reports.

  Modified files:
    trunk/configure.ac
Index: configure.ac
===================================================================
--- configure.ac	(revision 63400)
+++ configure.ac	(revision 63401)
@@ -829,13 +829,6 @@ main() https://github.com/ruby/ruby/blob/trunk/configure.ac#L829
 		    [given_xopen_source=yes], [given_xopen_source=no])
 		AC_MSG_RESULT($given_xopen_source)
 		AS_IF([test $given_xopen_source = no], [
-		  # On Solaris, with gcc, -std=iso9899:1999 in $ansi_options
-		  # is often also needed in CPPFLAGS, because some feature
-		  # definitions vary depending on such standards options.
-		  AS_CASE(["${ansi_options}"],
-		  [*-std=iso9899:1999*], [
-		    RUBY_APPEND_OPTIONS(CPPFLAGS, ${ansi_options})
-		  ])
 		  AC_MSG_CHECKING(appropriate _XOPEN_SOURCE value to define)
 		  define_xopen_source=""
 		  for tmp_xpg in 7 6 5; do

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