* configure.in: NetBSD 6 adds libexecinfo but it only works on amd64.

http://www.mail-archive.com/source-changes-full@netbsd.org/msg38729.html

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36010 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sun Jun 10 14:19:33 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: NetBSD 6 adds libexecinfo but it only works on amd64.
+	  http://www.mail-archive.com/source-changes-full@netbsd.org/msg38729.html
+
 Sun Jun 10 12:43:23 2012  Tanaka Akira  <akr@fsij.org>
 
 	* process.c (rb_f_exec): call rb_exec_async_signal_safe except on

configure.in

@@ -2079,14 +2079,19 @@ main(int argc, char *argv[])
     test x$rb_cv_fork_with_pthread = xyes || AC_DEFINE(CANNOT_FORK_WITH_PTHREAD)
 fi
 
-AS_CASE(["$target_os"],
-[freebsd*], [
+AS_CASE(["$target_cpu-$target_os"],
+[*-freebsd*], [
     AC_CHECK_HEADERS([/usr/local/include/execinfo.h])
     if test "x$ac_cv_header__usr_local_include_execinfo_h" = xyes; then :
 	RUBY_APPEND_OPTION(CPPFLAGS, -I/usr/local/include)
 	LDFLAGS="${LDFLAGS:+$LDFLAGS }-L/usr/local/lib"
 	DLDFLAGS="${DLDFLAGS:+$DLDFLAGS }-L/usr/local/lib"
 	AC_CHECK_LIB([execinfo], [backtrace])
+    fi],
+[x86_64-netbsd*], [
+    AC_CHECK_HEADERS([execinfo.h])
+	if test "x$ac_cv_header_execinfo_h" = xyes; then :
+	AC_CHECK_LIB([execinfo], [backtrace])
     fi])
 AC_CHECK_FUNCS(backtrace)