From bdbf03605c3dcfb997b2f1628d78234ff2c45bd8 Mon Sep 17 00:00:00 2001
From: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 27 Jul 2000 19:51:41 +0000
Subject: [PATCH] * c-decl.c (finish_function): Don't treat 'main'
specially unless flag_hosted. In C99 mode, return 0 from 'main' unless
DEFAULT_MAIN_RETURN is otherwise defined.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35300 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 4 ++++
gcc/c-decl.c | 6 +++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0cc077e72d6..6cc96ac547e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -10,6 +10,10 @@
2000-07-27 Joseph S. Myers <jsm28@cam.ac.uk>
+ * c-decl.c (finish_function): Don't treat 'main' specially unless
+ flag_hosted. In C99 mode, return 0 from 'main' unless
+ DEFAULT_MAIN_RETURN is otherwise defined.
+
* c-decl.c (store_parm_decls): In C99 mode, pedwarn for function
parameters defaulting to int in an old-style function definition.
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index 0b8621f750f..5f69e36136f 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -6589,7 +6589,8 @@ finish_function (nested)
setjmp_protect_args ();
}
- if (! strcmp (IDENTIFIER_POINTER (DECL_NAME (fndecl)), "main"))
+ if (! strcmp (IDENTIFIER_POINTER (DECL_NAME (fndecl)), "main")
+ && flag_hosted)
{
if (TYPE_MAIN_VARIANT (TREE_TYPE (TREE_TYPE (fndecl)))
!= integer_type_node)
@@ -6604,6 +6605,9 @@ finish_function (nested)
#ifdef DEFAULT_MAIN_RETURN
/* Make it so that `main' always returns success by default. */
DEFAULT_MAIN_RETURN;
+#else
+ if (flag_isoc99)
+ c_expand_return (integer_zero_node);
#endif
}
}
--
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