fix C90 compliance

[bison.git] / tests / actions.at

diff --git a/tests/actions.at b/tests/actions.at
index 5e897a2e3c7d514f39d19bcdd0cdaf3868fc1fbe..97c08c297c68047f4247ea4b73f3517e1225d78e 100644 (file)
--- a/tests/actions.at
+++ b/tests/actions.at
@@ -90,7 +90,7 @@ AT_DATA_GRAMMAR([[input.y]],
 %code
 {
 # include <stdio.h>
-# include <stdlib.h> // getenv
+# include <stdlib.h> /* getenv */
 ]AT_YYERROR_DECLARE[
 ]AT_YYLEX_DECLARE[
 }
@@ -195,7 +195,7 @@ AT_DATA_GRAMMAR([[input.y]],
 %code
 {
 # include <stdio.h>
-# include <stdlib.h> // getenv
+# include <stdlib.h> /* getenv */
 ]AT_YYERROR_DECLARE[
 ]AT_YYLEX_DECLARE[
 }
@@ -223,6 +223,7 @@ main (void)
 
   TEST(7, 2, 0, 2);
   TEST(8, 0, 8, 0);
+  return 0;
 }
 ]])
 
@@ -1301,7 +1302,16 @@ AT_BISON_OPTION_POPDEFS
 
 AT_BISON_CHECK([-o input.c input.y], 0,,
 [[input.y:33.3-23: warning: unset value: $$
-input.y:30.3-35.37: warning: unused value: $3
+input.y:32.3-23: warning: unused value: $3
+]])
+
+AT_BISON_CHECK([-fcaret -o input.c input.y], 0,,
+[[input.y:33.3-23: warning: unset value: $$
+   {           @$ = 4; } // Only used.
+   ^^^^^^^^^^^^^^^^^^^^^
+input.y:32.3-23: warning: unused value: $3
+   { USE ($$); @$ = 3; } // Only set.
+   ^^^^^^^^^^^^^^^^^^^^^
 ]])
 
 AT_COMPILE([input])