re PR c/63877 (- -Wmissing-declarations produces false alarms for C99 inline functions)

	PR c/63877
	* c-decl.c (start_function): Disable -Wmissing-declarations warning
	for inline functions.

	* gcc.dg/pr63877.c: New test.

From-SVN: r218039

gcc/c/ChangeLog

+2014-11-25  Marek Polacek  <polacek@redhat.com>
+
+	PR c/63877
+	* c-decl.c (start_function): Disable -Wmissing-declarations warning
+	for inline functions.
+
 2014-11-21  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/63764

gcc/c/c-decl.c

@@ -8353,7 +8353,8 @@ start_function (struct c_declspecs *declspecs, struct c_declarator *declarator,
   else if (warn_missing_declarations
 	   && TREE_PUBLIC (decl1)
 	   && old_decl == 0
-	   && !MAIN_NAME_P (DECL_NAME (decl1)))
+	   && !MAIN_NAME_P (DECL_NAME (decl1))
+	   && !DECL_DECLARED_INLINE_P (decl1))
     warning_at (loc, OPT_Wmissing_declarations,
 		"no previous declaration for %qD",
 		decl1);

gcc/testsuite/ChangeLog

+2014-11-25  Marek Polacek  <polacek@redhat.com>
+
+	PR c/63877
+	* gcc.dg/pr63877.c: New test.
+
 2014-11-25  Markus Trippelsdorf  <markus@trippelsdorf.de>
 
 	PR ipa/64059

gcc/testsuite/gcc.dg/pr63877.c

+/* { dg-do compile } */
+/* { dg-options "-Wmissing-declarations" } */
+
+inline int foo (void) { return 42; } /* { dg-bogus "no previous declaration" } */
+extern int foo (void);