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(duplicate_decls): Handle warn_redundant_decls here. 

But don't warn if function definition follows a declaration.
(pushdecl): Don't handle it here.
(grokparms): Don't warn about non-prototype decl in system header.

From-SVN: r1726
This commit is contained in:
Richard Stallman 1992-07-31 06:14:04 +00:00
parent 412a4297f6
commit 27f427f888
1 changed files with 14 additions and 9 deletions
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23
gcc/c-decl.c
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@ -1412,6 +1412,17 @@ duplicate_decls (newdecl, olddecl)
}
}
/* Optionally warn about more than one declaration for the same name. */
if (warn_redundant_decls && DECL_SOURCE_LINE (olddecl) != 0
/* Dont warn about a function declaration
followed by a definition. */
&& !(TREE_CODE (newdecl) == FUNCTION_DECL && DECL_INITIAL (newdecl) != 0
&& DECL_INITIAL (olddecl) == 0))
{
warning_with_decl (newdecl, "redundant redeclaration of `%s' in same scope");
warning_with_decl (olddecl, "previous declaration of `%s'");
}
/* Copy all the DECL_... slots specified in the new decl
except for any that we copy here from the old type.
@ -1622,14 +1633,7 @@ pushdecl (x)
"previous declaration of `%s'",
IDENTIFIER_POINTER (name));
}
if (warn_redundant_decls && line != 0)
{
warning ("redundant redeclaration of `%s' in same scope",
IDENTIFIER_POINTER (name));
warning_with_file_and_line (file, line,
"previous declaration of `%s'",
IDENTIFIER_POINTER (name));
}
return t;
}
@ -4279,7 +4283,8 @@ grokparms (parms_info, funcdef_flag)
last_function_parms = TREE_PURPOSE (parms_info);
last_function_parm_tags = TREE_VALUE (parms_info);
if (warn_strict_prototypes && first_parm == 0 && !funcdef_flag)
if (warn_strict_prototypes && first_parm == 0 && !funcdef_flag
&& !in_system_header)
warning ("function declaration isn't a prototype");
if (first_parm != 0